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Cover - shares	6 Months Ended
Cover - shares	Jun. 30, 2020	Jul. 24, 2020
Cover [Abstract]
Document Type	10-Q
Document Period End Date	Jun. 30, 2020
Document Quarterly Report	true
Document Transition Report	false
Entity File Number	0-25837
Entity Registrant Name	HEIDRICK & STRUGGLES INTERNATIONAL, INC.
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	36-2681268
City Area Code	(312)
Local Phone Number	496-1200
Title of 12(b) Security	Common Stock, $0.01 par value
Trading Symbol	HSII
Security Exchange Name	NASDAQ
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		19,342,148
Entity Central Index Key	0001066605
Document Fiscal Year Focus	2020
Current Fiscal Year End Date	--12-31
Entity Filer Category	Accelerated Filer
Entity Address, Address Line One	233 South Wacker Drive
Entity Address, Address Line Two	Suite 4900
Entity Address, City or Town	Chicago
Entity Address, State or Province	IL
Entity Address, Postal Zip Code	60606-6303
Document Fiscal Period Focus	Q2
Amendment Flag	false
Document Information [Line Items]
Entity Shell Company	false

Statement of Financial Position, Classified (Statement) - USD ($)	Jun. 30, 2020	Dec. 31, 2019	Jun. 30, 2019
Statement of Financial Position [Abstract]
Cash and Cash Equivalents, at Carrying Value	$ 218,760,000	$ 271,719,000	$ 105,314,000
Marketable Securities, Current	69,055,000	61,153,000
Accounts Receivable, after Allowance for Credit Loss, Current	124,845,000	109,163,000
Prepaid Expense	24,605,000	20,185,000
Other Assets, Current	27,811,000	27,848,000
Income Taxes Receivable	4,918,000	4,414,000
Assets, Current	469,994,000	494,482,000
Property, Plant and Equipment, Net	28,577,000	28,650,000
Operating Lease, Right-of-Use Asset	100,061,000	99,391,000
Long-term Investments	26,085,000	25,409,000
Other Assets, Noncurrent	24,700,000	20,434,000
Goodwill	91,271,000	126,831,000
Other Intangible Assets, Net	1,361,000	1,935,000
Deferred Income Tax Assets, Net	32,308,000	33,063,000
Assets, Noncurrent	318,364,000	349,691,000
Assets	788,358,000	844,173,000
Accounts Payable, Current	10,852,000	8,633,000
Employee-related Liabilities, Current	113,351,000	234,306,000
Deferred Revenue, Current	38,122,000	41,267,000
Operating Lease, Liability, Current	30,117,000	30,955,000
Other Liabilities, Current	18,144,000	26,253,000
Accrued Income Taxes, Current	11,448,000	3,928,000
Liabilities, Current	222,034,000	345,342,000
Long-term Line of Credit, Noncurrent	100,000,000	0
Liability, Defined Benefit Plan, Noncurrent	46,847,000	46,032,000
Operating Lease, Liability, Noncurrent	78,872,000	79,388,000
Other Liabilities, Noncurrent	4,573,000	4,634,000
Liabilities, Noncurrent	280,121,000	189,716,000
Liabilities	502,155,000	535,058,000
Preferred Stock, Value, Issued	0	0
Common Stock, Value, Issued	196,000	196,000
Treasury Stock, Value	(8,743,000)	(14,795,000)
Additional Paid in Capital, Common Stock	225,485,000	228,807,000
Retained Earnings (Accumulated Deficit)	67,686,000	91,083,000
Liabilities and Equity	788,358,000	844,173,000
Accumulated Other Comprehensive Income (Loss), Net of Tax	1,579,000	3,824,000
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest	$ 286,203,000	$ 309,115,000	288,449,000
Common Stock, Par or Stated Value Per Share	$ 0.01
Common Stock, Shares Authorized	100,000,000
Common Stock, Shares, Issued	19,585,777
Common Stock, Shares, Outstanding	19,337,750	19,165,954
Treasury Stock, Shares	248,027	419,823
Preferred Stock, Shares Issued	0	0
Accounts Receivable, Allowance for Credit Loss, Current	$ 7,067,000		$ 5,140,000
Preferred Stock, Par or Stated Value Per Share	$ 0.01	$ 0.01
Preferred Stock, Shares Authorized	10,000,000	10,000,000
Assets for Plan Benefits, Defined Benefit Plan	$ 14,001,000	$ 13,978,000
Accrued Salaries and Benefits	$ 49,829,000	$ 59,662,000

Statement of Income (Statement) - USD ($)	3 Months Ended		6 Months Ended
Statement of Income (Statement) - USD ($)	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Revenue from Contract with Customer, Excluding Assessed Tax	$ 145,603,000	$ 173,122,000	$ 317,084,000	$ 344,716,000
Revenues	147,835,000	178,173,000	322,682,000	354,447,000
Labor and Related Expense	104,658,000	120,601,000	225,747,000	241,419,000
General and Administrative Expense	31,961,000	34,168,000	64,201,000	68,553,000
Operating Expenses	171,821,000	159,820,000	328,516,000	319,703,000
Operating Income (Loss)	(23,986,000)	18,353,000	(5,834,000)	34,744,000
Interest Income (Expense), Net	(339,000)	412,000	340,000	1,220,000
Other Nonoperating Income (Expense)	3,076,000	708,000	(1,359,000)	2,351,000
Nonoperating Income (Expense)	2,737,000	1,120,000	(1,019,000)	3,571,000
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest	(21,249,000)	19,473,000	(6,853,000)	38,315,000
Income Tax Expense (Benefit)	4,484,000	5,193,000	10,214,000	11,948,000
Net Income (Loss) Attributable to Parent	(25,733,000)	14,280,000	(17,067,000)	26,367,000
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax	1,486,000	(7,000)	(2,230,000)	313,000
Other Comprehensive Income (Loss), Available-for-sale Securities Adjustment, Net of Tax, Portion Attributable to Parent	15,000	12,000	(15,000)	12,000
Other Comprehensive Income (Loss), Net of Tax	1,501,000	5,000	(2,245,000)	325,000
Comprehensive Income (Loss), Net of Tax, Attributable to Parent	$ (24,232,000)	$ 14,285,000	$ (19,312,000)	$ 26,692,000
Weighted Average Number of Shares Outstanding, Basic	19,298,000	19,120,000	19,245,000	19,062,000
Weighted Average Number of Shares Outstanding, Diluted	19,298,000	19,431,000	19,245,000	19,531,000
Earnings Per Share, Basic	$ (1.33)	$ 0.75	$ (0.89)	$ 1.38
Earnings Per Share, Diluted	(1.33)	0.73	(0.89)	1.35
Common Stock, Dividends, Per Share, Declared	$ 0.15	$ 0.15	$ 0.30	$ 0.30
Restructuring Charges	$ 32,970,000	$ 0	$ 32,970,000	$ 0
Reimbursements
Revenue from Contract with Customer, Excluding Assessed Tax	2,232,000	5,051,000	5,598,000	9,731,000
Cost of Goods and Services Sold	$ 2,232,000	$ 5,051,000	$ 5,598,000	$ 9,731,000

Statement of Cash Flows (Statement) - USD ($)	6 Months Ended
Statement of Cash Flows (Statement) - USD ($)	Jun. 30, 2020	Jun. 30, 2019
Statement of Cash Flows [Abstract]
Net Income (Loss) Attributable to Parent	$ (17,067,000)	$ 26,367,000
Depreciation, Depletion and Amortization	4,467,000	5,348,000
Deferred Income Tax Expense (Benefit)	380,000	512,000
Accretion Expense	0	327,000
Marketable Securities, Gain (Loss)	(122,000)	(116,000)
Gain (Loss) on Disposition of Assets	275,000	0
Increase (Decrease) in Accounts Receivable	(17,013,000)	(32,093,000)
Increase (Decrease) in Accounts Payable	2,145,000	(978,000)
Increase (Decrease) in Accrued Liabilities	(129,842,000)	(115,500,000)
Restructuring Reserve, Accrual Adjustment	(1,480,000)	(1,189,000)
Increase (Decrease) in Deferred Revenue	(2,673,000)	(3,240,000)
Increase (Decrease) in Income Taxes Payable, Net of Income Taxes Receivable	6,755,000	(4,035,000)
Increase (Decrease) in Obligation, Pension Benefits	1,275,000	1,686,000
Increase (Decrease) in Prepaid Expense	(4,541,000)	(3,507,000)
Increase (Decrease) in Other Operating Assets and Liabilities, Net	(4,228,000)	(176,000)
Net Cash Provided by (Used in) Operating Activities	(124,765,000)	(121,883,000)
Share-based Payment Arrangement, Noncash Expense	3,934,000	4,711,000
Payments to Acquire Property, Plant, and Equipment	(4,556,000)	(1,793,000)
Payments to Acquire Available-for-sale Securities	(71,419,000)	(40,477,000)
Proceeds from Sale of Available-for-sale Securities	62,467,000	232,000
Net Cash Provided by (Used in) Investing Activities	(13,508,000)	(42,038,000)
Proceeds from Lines of Credit	100,000,000	0
Payments of Dividends	(5,997,000)	(5,903,000)
Payment, Tax Withholding, Share-based Payment Arrangement	(1,550,000)	(4,552,000)
Payment for Contingent Consideration Liability, Financing Activities	(2,789,000)	(407,000)
Net Cash Provided by (Used in) Financing Activities	89,664,000	(10,862,000)
Effect of Exchange Rate on Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents	(4,350,000)	(165,000)
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Including Exchange Rate Effect	(52,959,000)	(174,948,000)
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents	218,760,000	105,314,000
Asset Impairment Charges	$ 32,970,000	$ 0

Statement of Shareholders' Equity (Statement) - USD ($)	Total	Common Stock Including Additional Paid in Capital	Treasury Stock	Additional Paid-in Capital	Retained Earnings	AOCI Attributable to Parent	Cumulative Effect, Period of Adoption, Adjustment	Cumulative Effect, Period of Adoption, Adjustment Retained Earnings
Common Stock, Shares, Outstanding		19,586,000	632,000
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest	$ 267,156,000	$ 196,000	$ (20,298,000)	$ 227,147,000	$ 56,049,000	$ 4,062,000
Net Income (Loss) Attributable to Parent	12,087,000				12,087,000
APIC, Share-based Payment Arrangement, Restricted Stock Unit, Increase for Cost Recognition	1,343,000			1,343,000
Restricted Stock, Value, Shares Issued Net of Tax Withholdings	(4,552,000)		$ 5,155,000	(9,707,000)
Restricted Stock, Shares Issued Net of Shares for Tax Withholdings			(160,000)
Dividends, Cash	(2,848,000)				(2,848,000)
Dividend, Share-based Payment Arrangement, Cash	$ (87,000)				(87,000)
Common Stock, Dividends, Per Share, Declared	$ 150
Other Comprehensive Income (Loss), Net of Tax	$ 320,000					320,000
Net Income (Loss) Attributable to Parent	26,367,000
Comprehensive Income (Loss), Net of Tax, Attributable to Parent	26,692,000
Other Comprehensive Income (Loss), Net of Tax	325,000
Common Stock, Shares, Outstanding		19,586,000	472,000
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest	273,419,000	$ 196,000	$ (15,143,000)	218,783,000	65,201,000	4,382,000
Net Income (Loss) Attributable to Parent	14,280,000				14,280,000
Comprehensive Income (Loss), Net of Tax, Attributable to Parent	14,285,000
APIC, Share-based Payment Arrangement, Restricted Stock Unit, Increase for Cost Recognition	3,368,000			3,368,000
Restricted Stock, Value, Shares Issued Net of Tax Withholdings	0		$ 0	0
Restricted Stock, Shares Issued Net of Shares for Tax Withholdings			(3,000)
Dividends, Cash	(2,867,000)				(2,867,000)
Stock Issued During Period, Shares, Treasury Stock Reissued			(11,000)
Stock Issued During Period, Value, Treasury Stock Reissued	345,000		$ 348,000	(3,000)
Dividend, Share-based Payment Arrangement, Cash	$ (101,000)				(101,000)
Common Stock, Dividends, Per Share, Declared	$ 150
Other Comprehensive Income (Loss), Net of Tax	$ 5,000					5,000
Common Stock, Shares, Outstanding		19,586,000	458,000
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest	$ 288,449,000	$ 196,000	$ (14,795,000)	222,148,000	76,513,000	4,387,000
Common Stock, Shares, Outstanding	19,165,954	19,586,000	420,000
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest	$ 309,115,000	$ 196,000	$ (14,795,000)	228,807,000	91,083,000	3,824,000	$ (332,000)	$ (332,000)
Net Income (Loss) Attributable to Parent	8,666,000				8,666,000
APIC, Share-based Payment Arrangement, Restricted Stock Unit, Increase for Cost Recognition	2,614,000			2,614,000
Restricted Stock, Value, Shares Issued Net of Tax Withholdings	(1,550,000)		$ 3,838,000	(5,388,000)
Restricted Stock, Shares Issued Net of Shares for Tax Withholdings			(109,000)
Dividends, Cash	(2,876,000)				(2,876,000)
Dividend, Share-based Payment Arrangement, Cash	$ (126,000)				(126,000)
Common Stock, Dividends, Per Share, Declared	$ 0.15
Other Comprehensive Income (Loss), Net of Tax	$ (3,746,000)					(3,746,000)
Net Income (Loss) Attributable to Parent	(17,067,000)
Comprehensive Income (Loss), Net of Tax, Attributable to Parent	(19,312,000)
Other Comprehensive Income (Loss), Net of Tax	(2,245,000)
Common Stock, Shares, Outstanding		19,586,000	311,000
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest	311,765,000	$ 196,000	$ (10,957,000)	226,033,000	96,415,000	78,000
Net Income (Loss) Attributable to Parent	(25,733,000)				(25,733,000)
Comprehensive Income (Loss), Net of Tax, Attributable to Parent	(24,232,000)
APIC, Share-based Payment Arrangement, Restricted Stock Unit, Increase for Cost Recognition	1,320,000			1,320,000
Restricted Stock, Value, Shares Issued Net of Tax Withholdings	0		$ 1,685,000	(1,685,000)
Restricted Stock, Shares Issued Net of Shares for Tax Withholdings			(48,000)
Dividends, Cash	(2,891,000)				(2,891,000)
Stock Issued During Period, Shares, Treasury Stock Reissued			(15,000)
Stock Issued During Period, Value, Treasury Stock Reissued	346,000		$ 529,000	(183,000)
Dividend, Share-based Payment Arrangement, Cash	$ (105,000)				(105,000)
Common Stock, Dividends, Per Share, Declared	$ 0.15
Other Comprehensive Income (Loss), Net of Tax	$ 1,501,000					1,501,000
Common Stock, Shares, Outstanding	19,337,750	19,586,000	248,000
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest	$ 286,203,000	$ 196,000	$ (8,743,000)	$ 225,485,000	$ 67,686,000	$ 1,579,000

Organization, Consolidation and Presentation of Financial Statements	6 Months Ended
	Jun. 30, 2020
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Organization, Consolidation and Presentation of Financial Statements Disclosure	Basis of Presentation of Interim Financial Information The accompanying unaudited Condensed Consolidated Financial Statements of Heidrick & Struggles International, Inc. and subsidiaries (the “Company”) have been prepared pursuant to the rules and regulations of the U.S. Securities and Exchange Commission (“SEC”). The preparation of financial statements in conformity with accounting principles generally accepted in the United States of America requires management to make estimates and assumptions that affect the reported amounts of assets, liabilities, revenue and expenses. Significant items subject to estimates and assumptions include revenue recognition, income taxes, interim effective tax rate and the assessment of goodwill, other intangible assets and long lived assets for impairment. Estimates are subject to a degree of uncertainty and actual results could differ from these estimates. In the opinion of management, all adjustments necessary to fairly present the financial position of the Company at June 30, 2020 and December 31, 2019, the results of operations for the three and six months ended June 30, 2020 and 2019 and its cash flows for the six months ended June 30, 2020 and 2019 have been included and are of a normal, recurring nature except as otherwise disclosed. These financial statements and notes are to be read in conjunction with the Company’s Consolidated Financial Statements and Notes thereto included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2019, as filed with the SEC on February 24, 2020.

Accounting Policies

6 Months Ended

Jun. 30, 2020

Accounting Policies [Abstract]

Basis of Presentation and Significant Accounting Policies

Summary of Significant Accounting Policies

A complete listing of the Company’s significant accounting policies is discussed in Note 2, Summary of Significant Accounting Policies, in the Notes to Consolidated Financial Statements included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2019.

Revenue Recognition

See Note 3, Revenue.

Marketable Securities

The Company’s marketable securities consist of available-for-sale debt securities with original maturities exceeding three months.

Restricted Cash

The following table provides a reconciliation of the cash and cash equivalents between the Condensed Consolidated Balance Sheets and the Condensed Consolidated Statement of Cash Flows as of June 30, 2020 and 2019, and December 31, 2019 and 2018:


	June 30,						December 31,
	2020		2019		2019		2018
Cash and cash equivalents	$	218,760	$	105,314	$	271,719	$	279,906
Restricted cash included within other current assets	—		—		—		108
Restricted cash included within other non-current assets	—		—		—		248
Total cash, cash equivalents and restricted cash	$	218,760	$	105,314	$	271,719	$	280,262

Earnings (loss) per Common Share

Basic earnings (loss) per common share is computed by dividing net income (loss) by weighted average common shares outstanding for the period. Diluted earnings (loss) per share reflect the potential dilution that could occur if securities or other contracts to issue common stock were exercised or converted. Common equivalent shares are excluded from the determination of diluted earnings (loss) per share in periods in which they have an anti-dilutive effect.

The following table sets forth the computation of basic and diluted earnings (loss) per share:


	Three Months Ended June 30,						Six Months Ended June 30,
	2020		2019		2020		2019
Net income (loss)	$	(25,733)	$	14,280	$	(17,067)	$	26,367
Weighted average shares outstanding:
Basic	19,298		19,120		19,245		19,062
Effect of dilutive securities:
Restricted stock units	—		202		—		300
Performance stock units	—		109		—		169
Diluted	19,298		19,431		19,245		19,531
Basic earnings per share	$	(1.33)	$	0.75	$	(0.89)	$	1.38
Diluted earnings per share	$	(1.33)	$	0.73	$	(0.89)	$	1.35

Weighted average restricted stock units and performance stock units outstanding that could be converted into approximately 229,000 and 30,000 common shares, respectively, for the three months ended June 30, 2020, and 392,000 and 84,000 common shares, respectively, for the six months ended June 30, 2020, were not included in the computation of diluted earnings (loss) per share because the effects would be anti-dilutive.

Goodwill

Goodwill represents the difference between the purchase price of acquired companies and the related fair value of the net assets acquired, which is accounted for by the acquisition method of accounting. The Company performs assessments of the carrying value of goodwill at least annually and whenever events occur or circumstances indicate that a carrying amount of goodwill may not be recoverable. These circumstances include a significant change in business climate, attrition of key personnel, changes in financial condition or results of operations, a prolonged decline in the Company’s stock price and market capitalization, competition, and other factors.

The goodwill impairment test compares the fair value of a reporting unit to its carrying amount, including goodwill. The Company operates four reporting units: Americas, Europe (which includes Africa), Asia Pacific (which includes the Middle East) and Heidrick Consulting. The goodwill impairment test is completed by comparing the fair value of a reporting unit with its carrying amount. The fair value of each of the Company’s reporting units is determined using a discounted cash flow methodology. An impairment charge is recognized for the amount by which the carrying value of the reporting unit exceeds its fair value; however, the loss recognized is not to exceed the total amount of goodwill allocated to that reporting unit.

During the three months ended June 30, 2020, and as a direct result of the economic impact of COVID-19, the Company experienced a decline in demand for our executive search and consulting services, a lengthening of the executive search process due to a slow-down in client decision making and an inability to execute in-person consulting engagements, which had a material negative impact on our results of operations. As a result, the Company identified a triggering event and performed an interim goodwill impairment evaluation during the three months ended June 30, 2020.

During the impairment evaluation process, the Company used a discounted cash flow methodology to estimate the fair value of its reporting units. The discounted cash flow approach is dependent on a number of factors, including estimates of future market growth and trends, forecasted revenue and costs, capital investments, appropriate discount rates, certain assumptions to allocate shared costs, assets and liabilities, historical and projected performance of the reporting unit, and the macroeconomic conditions affecting each of the Company’s reporting units. The assumptions used in the determination of fair value were (1) a forecast of growth in the near and long term; (2) the discount rate; (3) working capital investments; (4) macroeconomic conditions and (5) other factors.

Based on the results of the of the impairment evaluation, the Company determined that the goodwill within the Europe and Asia Pacific reporting units was impaired, which resulted in an impairment charge of $24.5 million in Europe and $8.5 million in Asia Pacific to write-off all of the goodwill associated with each reporting unit. The impairment charge is recorded within Impairment charges in the Condensed Consolidated Statements of Comprehensive Income (Loss) for the three and six months ended June 30, 2020. The impairment was non-cash in nature and did not affect our current liquidity, cash flows, borrowing capability or operations; nor did it impact the debt covenants under our credit agreement.

The Company continues to monitor potential triggering events for its Americas reporting unit including changes in the business climate in which it operates, the Company’s market capitalization compared to its book value, and the Company’s recent operating performance. Any changes in these factors could result in a further impairment charge.

Other Intangible Assets and Long Lived Assets

The Company reviews its other intangible assets and long-lived assets, including property and equipment and right-of-use assets, for impairment whenever events or changes in circumstances indicate that the carrying amount of an asset group may not be recoverable. Recoverability of asset groups to be held and used is measured by a comparison of the carrying amount of an asset group to estimated undiscounted future cash flows expected to be generated by the asset group. If the carrying amount of an asset group exceeds its estimated future cash flows, an impairment charge, equal to the amount by which the carrying amount of the asset group exceeds the fair value of the asset group, is recognized. The Company evaluated the recoverability of its other intangible assets and long-lived assets during the three months ended June 30, 2020 and determined that the other intangible assets and long-lived assets were recoverable. The Company continues to monitor the impact of the economic downturn resulting from COVID-19 for additional potential impairment indicators related to other intangible assets and long-lived assets.

Leases

The Company determines if an arrangement is a lease at inception. Operating leases are included in Operating Lease Right-of-Use Assets, Operating Lease Liabilities - Current and Operating Lease Liabilities - Non-Current in our Condensed Consolidated Balance Sheets. The Company does not have any leases that meet the finance lease criteria.

Right-of-use assets represent the Company's right to use an underlying asset for the lease term and lease liabilities represent the Company's obligation to make lease payments arising from the lease. Operating lease right-of-use assets and liabilities are recognized on the commencement date based on the present value of lease payments over the lease term. As most of the Company's leases do not provide an implicit rate, we use an incremental borrowing rate based on the information available at the commencement date in determining the present value of lease payments. The operating lease right-of-use asset also includes any lease payments made in advance and any accrued rent expense balances. Our lease terms may include options to extend or terminate the lease when it is reasonably certain that the option will be exercised. Lease expense for lease payments is recognized on a straight-line basis over the lease term.

The Company has lease agreements with lease and non-lease components. For office leases, the Company accounts for the lease and non-lease components as a single lease component. For equipment leases, such as vehicles and office equipment, the Company accounts for the lease and non-lease components separately.

Recently Adopted Financial Accounting Standards

On January 1, 2020, the Company adopted Accounting Standards Update ("ASU") No. 2016-13, Measurement of Credit Losses on Financial Instruments, and all related amendments, using the modified retrospective method. The guidance amends the impairment model by requiring entities to use a forward-looking approach based on expected losses to estimate credit losses on certain types of financial instruments, including trade receivables. The adoption had an immaterial impact on the Condensed Consolidated Statements of Comprehensive Income (Loss), Condensed Consolidated Balance Sheet, Condensed Consolidated Statements of Cash Flows and Condensed Consolidated Statements of Changes in Stockholders' Equity for the three and six months ended June 30, 2020.

Recently Issued Financial Accounting Standards

In March 2020, the Financial Accounting Standards Board ("FASB") issued ASU No. 2020-04, Facilitation of the Effects of Reference Rate Reform on Financial Reporting. The guidance is intended to provide temporary optional expedients and exceptions to the guidance on contract modifications and hedge accounting to ease the financial reporting burdens related to the expected market transition from the London Interbank Offered Rate (LIBOR) and other interbank offered rates to alternative reference rates. This guidance is effective March 12, 2020, and the Company may elect to apply the amendments prospectively through December 31, 2022. The Company is currently evaluating the impact of this accounting guidance. The effect is not known or reasonably estimable at this time.

In December 2019, the FASB, issued ASU No. 2019-12, Simplifying the Accounting for Income Taxes. The guidance simplifies the accounting for income taxes by eliminating certain exceptions to the guidance in Accounting Standards Codification ("ASC") 740 related to the approach for intraperiod tax allocation, the methodology for calculating income taxes in an interim period and the recognition of deferred tax liabilities for outside basis differences. The guidance also simplifies aspects of the accounting for franchise taxes and enacted changes in tax laws or rates and clarifies the accounting for transactions that result in a step-up in the tax basis of goodwill. The guidance is effective for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2021. Early adoption is permitted. The Company is currently evaluating the impact of this accounting guidance. The effect is not known or reasonably estimable at this time.

Revenue from Contract with Customer

6 Months Ended

Jun. 30, 2020

Revenue from Contract with Customer [Abstract]

Revenue from Contract with Customer

Revenue

Executive Search

Revenue is recognized as performance obligations are satisfied by transferring a good or service to a client. Generally, each executive search contract contains one performance obligation which is the process of identifying potentially qualified candidates for a specific client position. In most contracts, the transaction price includes both fixed and variable consideration. Fixed compensation is comprised of a retainer, equal to approximately one-third of the estimated first year compensation for the position to be filled, and indirect expenses, equal to a specified percentage of the retainer, as defined in the contract. The Company generally bills clients for the retainer and indirect expenses in one-third increments over a three-month period commencing in the month of a client’s acceptance of the contract. If actual compensation of a placed candidate exceeds the original compensation estimate, the Company is often authorized to bill the client for one-third of the excess compensation. The Company refers to this additional billing as uptick revenue. In most contracts, variable consideration is comprised of uptick revenue and direct expenses. The Company bills its clients for uptick revenue upon completion of the executive search, and direct expenses are billed as incurred.

The Company estimates uptick revenue at contract inception, based on a portfolio approach, utilizing the expected value method based on a historical analysis of uptick revenue realized in the Company’s geographic regions and industry practices, and initially records a contract’s uptick revenue in an amount that is probable not to result in a significant reversal of cumulative revenue recognized when the actual amount of uptick revenue for the contract is known. Differences between the estimated and actual amounts of variable consideration are recorded when known. The Company does not estimate revenue for direct expenses as it is not materially different than recognizing revenue as direct expenses are incurred.

Revenue from executive search engagement performance obligations are recognized over time as clients simultaneously receive and consume the benefits provided by the Company's performance. Revenue from executive search engagements is recognized over the expected average period of performance, in proportion to the estimated personnel time incurred to fulfill the obligations under the executive search contract. Revenue is generally recognized over a period of approximately six months.

The Company's executive search contracts contain a replacement guarantee which provides for an additional search to be completed, free of charge except for expense reimbursements, should the candidate presented by the Company be hired by the client and subsequently terminated by the client for performance reasons within a specified period of time. The replacement guarantee is an assurance warranty, which is not a performance obligation under the terms of the executive search contract, as the Company does not provide any services under the terms of the guarantee that transfer benefits to the client in excess of assuring that the identified candidate complies with the agreed-upon specifications. The Company accounts for the replacement guarantee under the relevant warranty guidance in ASC 460 - Guarantees.

Heidrick Consulting

Revenue is recognized as performance obligations are satisfied by transferring a good or service to a client. Heidrick Consulting enters into contracts with clients that outline the general terms and conditions of the assignment to provide succession planning, executive assessment, top team and board effectiveness and culture shaping programs. The consideration the Company expects to receive under each contract is generally fixed. Most of our consulting contracts contain one performance obligation, which is the overall process of providing the consulting service requested by the client. The majority of our consulting revenue is recognized over time utilizing both input and output methods. Contracts that contain coaching sessions, training sessions or the completion of assessments are recognized using the output method as each session or assessment is delivered to the client. Contracts that contain general consulting work are recognized using the input method utilizing a measure of progress that is based on time incurred on the project.

The Company enters into enterprise agreements with clients to provide a license for online access, via the Company's Culture Connect platform, to training and other proprietary material related to the Company's culture shaping programs. The

consideration the Company expects to receive under the terms of an enterprise agreement is comprised of a single fixed fee. The enterprise agreements contain multiple performance obligations, the delivery of materials via Culture Connect and material rights related to options to renew enterprise agreements at a significant discount. The Company allocates the transaction price to the performance obligations in the contract on a stand-alone selling price basis. The stand-alone selling price for the initial term of the enterprise agreement is outlined in the contract and is equal to the price paid by the client for the agreement over the initial term of the contract. The stand-alone selling price for the options to renew, or material right, are not directly observable and must be estimated. This estimate is required to reflect the discount the client would obtain when exercising the option to renew, adjusted for the likelihood that the option will be exercised. The Company estimates the likelihood of renewal using a historical analysis of client renewals. Access to Culture Connect represents a right to access the Company’s intellectual property that the client simultaneously receives and consumes as the Company performs under the agreement, and therefore the Company recognizes revenue over time. Given the continuous nature of this commitment, the Company utilizes straight-line ratable revenue recognition over the estimated subscription period as the Company's clients will receive and consume the benefits from Culture Connect equally throughout the contract period. Revenue related to client renewals of enterprise agreements is recognized over the term of the renewal, which is generally twelve months. Enterprise agreements do not comprise a significant portion of the Company's revenue.

Contract Balances

Contract assets and liabilities are reported in a net position on a contract-by-contract basis at the end of each reporting period. Contract assets and liabilities are classified as current due to the nature of the Company's contracts, which are completed within one year. Contract assets are included within Other Current Assets on the Condensed Consolidated Balance Sheets.

Unbilled receivables: Unbilled revenue represents contract assets from revenue recognized over time in excess of the amount billed to the client and the amount billed to the client is solely dependent upon the passage of time. This amount includes revenue recognized in excess of billed executive search retainers and Heidrick Consulting fees.

Contract assets: Contract assets represent revenue recognized over time in excess of the amount billed to the client and the amount billed to the client is not solely subject to the passage of time. This amount primarily includes revenue recognized for upticks and contingent placement fees in executive search contracts.

Deferred revenue: Contract liabilities consist of deferred revenue, which is equal to billings in excess of revenue recognized.

The following table outlines the changes in the contract asset and liability balances during the period:


	June 30, 2020		December 31, 2019		Change
Contract assets
Unbilled receivables, net	$	10,901	$	7,585	$	3,316
Contract assets	12,739		14,672		(1,933)
Total contract assets	23,640		22,257		1,383

Contract liabilities
Deferred revenue	$	38,122	$	41,267	$	(3,145)

During the six months ended June 30, 2020, the Company recognized revenue of $29.5 million that was included in the contract liabilities balance at the beginning of the period. The amount of revenue recognized during the six months ended June 30, 2020, from performance obligations partially satisfied in previous periods as a result of changes in the estimates of variable consideration was $12.9 million.

Each of the Company's contracts has an expected duration of one year or less. Accordingly, the Company has elected to utilize the available practical expedient related to the disclosure of the transaction price allocated to the remaining performance obligations under its contracts. The Company has also elected the available practical expedients related to adjusting for the effects of a significant financing component and the capitalization of contract acquisition costs. The Company charges and collects from its clients sales tax and value added taxes as required by certain jurisdictions. The Company has made an accounting policy election to exclude these items from the transaction price in its contracts.

- Definition

The entire disclosure of revenue from contract with customer to transfer good or service and to transfer nonfinancial asset. Includes, but is not limited to, disaggregation of revenue, credit loss recognized from contract with customer, judgment and change in judgment related to contract with customer, and asset recognized from cost incurred to obtain or fulfill contract with customer. Excludes insurance and lease contracts.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
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+ Details

Credit Losses

6 Months Ended

Jun. 30, 2020

Credit Loss [Abstract]

Loans, Notes, Trade and Other Receivables Disclosure

The Company is exposed to credit losses primarily through the provision of its executive search and consulting services. The Company’s expected credit loss allowance methodology for accounts receivable is developed using historical collection experience, current and future economic and market conditions and a review of the current status of customers' trade accounts receivables. Due to the short-term nature of such receivables, the estimate of amount of accounts receivable that may not be collected is primarily based on historical loss-rate experience. When required, the Company adjusts the loss-rate methodology to account for current conditions and reasonable and supportable expectations of future economic and market conditions. The Company generally assesses future economic conditions for a period of sixty to ninety days, which corresponds with the contractual life of its accounts receivables. Additionally, specific allowance amounts are established to record the appropriate provision for customers that have a higher probability of default. The Company’s monitoring activities include timely account reconciliation, dispute resolution, payment confirmation, consideration of customers' financial condition and macroeconomic conditions. Balances are written off when determined to be uncollectible. The Company considered the current and expected future economic and market conditions surrounding the novel coronavirus ("COVID-19") pandemic and determined that the estimate of credit losses was not significantly impacted.

The activity in the allowance for credit losses on the Company's trade receivables is as follows:


Balance at December 31, 2019	$	5,140
Provision for credit losses	4,298
Write-offs	(1,774)
Foreign currency translation	(597)
Balance at June 30, 2020	$	7,067

The fair value and unrealized losses on available for sale debt securities, aggregated by investment category and the length of time the security has been in an unrealized loss position, are as follows:


	Less Than 12 Months						Balance Sheet Classification
Balance at June 30, 2020	Fair Value		Unrealized Loss		Cash and Cash Equivalents		Marketable Securities
U.S. Treasury securities	$	47,004	$	2	$	—	$	47,004

The unrealized losses on four investments in U.S. Treasury securities were caused by fluctuations in market interest rates. The contractual cash flows of these investments are guaranteed by an agency of the U.S. government. Accordingly, it is expected that the investments would not be settled at a price less than the amortized cost basis. The Company does not intend to sell the investments and it is not more likely than not that the Company will be required to sell the investments before the recovery of the amortized cost basis.

Property, Plant, and Equipment

3 Months Ended

Jun. 30, 2020

Property, Plant and Equipment [Abstract]

Property, Plant and Equipment Disclosure

Property and Equipment, net

The components of the Company’s property and equipment are as follows:


	June 30, 2020		December 31, 2019
Leasehold improvements	$	48,571	$	47,269
Office furniture, fixtures and equipment	18,156		17,740
Computer equipment and software	25,872		27,531
Property and equipment, gross	92,599		92,540
Accumulated depreciation	(64,022)		(63,890)
Property and equipment, net	$	28,577	$	28,650

Depreciation expense for the three months ended June 30, 2020 and 2019 was $1.9 million and $2.4 million, respectively. Depreciation expense for the six months ended June 30, 2020 and 2019 was $4.1 million and $4.9 million, respectively.

Segment Reporting

6 Months Ended

Jun. 30, 2020

Segment Reporting [Abstract]

Segment Reporting Disclosure

Segment Information

The Company has four operating segments. The executive search business operates in the Americas, Europe (which includes Africa) and Asia Pacific (which includes the Middle East), and the Heidrick Consulting business operates globally.

For segment purposes, reimbursements of out-of-pocket expenses classified as revenue and other operating income are reported separately and, therefore, are not included in the results of each segment. The Company believes that analyzing trends in revenue before reimbursements (net revenue), analyzing operating expenses as a percentage of net revenue, and analyzing operating income, more appropriately reflect its core operations.

The revenue and operating income (loss) by segment are as follows:


	Three Months Ended June 30,						Six Months Ended June 30, 2020
	2020		2019		2020		2019
Revenue
Executive Search
Americas	$	84,840	$	100,517	$	185,141	$	199,822
Europe	30,124		34,864		63,206		68,417
Asia Pacific	19,190		23,163		41,260		48,610
Total Executive Search	134,154		158,544		289,607		316,849
Heidrick Consulting	11,449		14,578		27,477		27,867
Revenue before reimbursements (net revenue)	145,603		173,122		317,084		344,716
Reimbursements	2,232		5,051		5,598		9,731
Total revenue	$	147,835	$	178,173	$	322,682	$	354,447


	Three Months Ended June 30,						Six Months Ended June 30, 2020
	2020		2019		2020		2019
Operating income (loss)
Executive Search
Americas	$	23,102	$	28,551	$	48,834	$	51,000
Europe (1)	(23,067)		1,157		(20,018)		3,322
Asia Pacific (2)	(7,329)		3,315		(4,827)		8,221
Total Executive Search	(7,294)		33,023		23,989		62,543
Heidrick Consulting	(8,321)		(4,793)		(12,413)		(9,620)
Total segment operating income (loss)	(15,615)		28,230		11,576		52,923
Global Operations Support	(8,371)		(9,877)		(17,410)		(18,179)
Total operating income (loss)	$	(23,986)	$	18,353	$	(5,834)	$	34,744

(1) Europe includes goodwill impairment charges of $24.5 million for the three and six months ended June 30, 2020.

(2) Asia Pacific includes goodwill impairment charges of $8.5 million for the three and six months ended June 30, 2020

- Definition

The entire disclosure for reporting segments including data and tables. Reportable segments include those that meet any of the following quantitative thresholds a) it's reported revenue, including sales to external customers and intersegment sales or transfers is 10 percent or more of the combined revenue, internal and external, of all operating segments b) the absolute amount of its reported profit or loss is 10 percent or more of the greater, in absolute amount of 1) the combined reported profit of all operating segments that did not report a loss or 2) the combined reported loss of all operating segments that did report a loss c) its assets are 10 percent or more of the combined assets of all operating segments.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
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+ Details

Guarantees	6 Months Ended
Guarantees	Jun. 30, 2020
Guarantees and Product Warranties [Abstract]
Guarantees	Guarantees The Company has utilized letters of credit to support certain obligations, primarily for its office lease agreements in Europe and Asia Pacific. The letters of credit were made to secure the respective agreements and are for the terms of the agreements, which extend through 2030. For each letter of credit issued, the Company would have to use cash to fulfill the obligation if there is a default on a payment. The maximum amount of undiscounted payments the Company would be required to make in the event of default on all outstanding letters of credit is approximately $2.5 million as of June 30, 2020. The Company has not accrued for these arrangements as no event of default exists or is expected to exist.

Commitment and Contingencies	6 Months Ended
Commitment and Contingencies	Jun. 30, 2020
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies Disclosure	Commitments and Contingencies Litigation The Company has contingent liabilities from various pending claims and litigation matters arising in the ordinary course of the Company’s business, some of which involve claims for damages that are substantial in amount. Some of these matters are covered by insurance. Based upon information currently available, the Company believes the ultimate resolution of such claims and litigation will not have a material adverse effect on its financial condition, results of operations or liquidity.

Leases, Codification Topic 842

6 Months Ended

Jun. 30, 2020

Leases [Abstract]

Lessee, Operating Leases

Leases The Company's lease portfolio is comprised of operating leases for office space and equipment. The majority of the Company's leases include both lease and non-lease components, which the Company accounts for differently depending on the

underlying class of asset. Certain of the Company's leases include one or more options to renew or terminate the lease at the Company's discretion. Generally, the renewal and termination options are not included in the right-of-use assets and lease liabilities as they are not reasonably certain of exercise. The Company regularly evaluates the renewal and termination options and when they are reasonably certain of exercise, includes the renewal or termination option in the lease term.

As most of the Company's leases do not provide an implicit interest rate, the Company utilizes an incremental borrowing rate based on the information available at the commencement date in determining the present value of lease payments. The Company has a centrally managed treasury function; therefore, a portfolio approach is applied in determining the incremental borrowing rate. The incremental borrowing rate is the rate of interest that the Company would have to pay to borrow on a fully collateralized basis over a similar term in an amount equal to the total lease payments in a similar economic environment.

Office leases have remaining lease terms that range from less than one year to 9.9 years, some of which also include options to extend or terminate the lease. Most office leases contain both fixed and variable lease payments. Variable lease costs consist primarily of rent escalations based on an established index or rate and taxes, insurance, and common area or other maintenance costs, which are paid based on actual costs incurred by the lessor. The Company has elected to utilize the available practical expedient to not separate lease and non-lease components for office leases.

Equipment leases, which are comprised of vehicle and office equipment leases, have remaining terms that range from less than one year to 4.3 years, some of which also include options to extend or terminate the lease. The Company's equipment leases do not contain variable lease payments. The Company separates the lease and non-lease components for its equipment leases. Equipment leases do not comprise a significant portion of the Company's lease portfolio.

Lease cost components included within General and Administrative Expenses in our Condensed Consolidated Statements of Comprehensive Income (Loss) were as follows for the six months ended June 30,:


	Three Months Ended June 30,						Six Months Ended June 30,
	2020		2019		2020		2019
Operating lease cost	$	6,186	$	5,907	$	12,447	$	12,480
Variable lease cost	1,771		2,057		3,844		3,914
Total lease cost	$	7,957	$	7,964	$	16,291	$	16,394

Supplemental cash flow information related to the Company's operating leases is as follows for the six months ended June 30,:


	2020		2019
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows from operating leases	$	15,599	$	16,886
Right-of-use assets obtained in exchange for lease obligations:
Operating leases	$	10,095	$	11,441

The weighted average remaining lease term and weighted average discount rate for operating leases as of June 30, is as follows:


	2020		2019
Weighted Average Remaining Lease Term
Operating leases	4.6 years		4.7 years
Weighted Average Discount Rate
Operating leases	3.77	%	3.97	%

The future maturities of the Company's operating lease liabilities as of June 30, 2020, for the years ended December 31 is as follows:


	Operating Lease Maturity
2020	$	13,877
2021	29,735
2022	26,077
2023	23,065
2024	12,625
Thereafter	12,824
Total lease payments	118,203
Less: Interest	(9,214)
Present value of lease liabilities	$	108,989

Fair Value Measures and Disclosures

6 Months Ended

Jun. 30, 2020

Fair Value Disclosures [Abstract]

Investment

Financial Instruments and Fair Value

Cash, Cash Equivalents and Marketable Securities

The Company's investments in marketable debt securities, which consist of U.S. Treasury bills, are classified and accounted for as available-for-sale. The Company classifies its marketable debt securities as either short-term or long-term based on each instrument's underlying contractual maturity date. Unrealized gains and losses on marketable debt securities classified as available-for-sale are recognized in Accumulated other comprehensive income in the Condensed Consolidated Balance Sheets until realized.

The Company's cash, cash equivalents, and marketable securities by significant investment category are as follows:


	Fair Value												Balance Sheet Classification
	Amortized Cost		Unrealized Gains		Unrealized Losses		Fair Value		Cash and Cash Equivalents		Marketable Securities
Balance at June 30, 2020
Cash									$	174,908	$	—

Level 1⁽¹⁾:
Money market funds									43,852		—
U.S. Treasury securities	69,057		—		2		69,055		—		69,055
Total Level 1	69,057		—		2		69,055		43,852		69,055




Total	$	69,057	$	—	$	2	$	69,055	$	218,760	$	69,055


	Fair Value												Balance Sheet Classification
	Amortized Cost		Unrealized Gains		Unrealized Losses		Fair Value		Cash and Cash Equivalents		Marketable Securities
Balance at December 31, 2019
Cash									$	177,493	$	—

Level 1⁽¹⁾:
Money market funds									15,661		—
U.S. Treasury securities	139,705		13		—		139,718		78,565		61,153
Total Level 1	139,705		13		—		139,718		94,226		61,153

Total	$	139,705	$	13	$	—	$	139,718	$	271,719	$	61,153

(1)Level 1 – Quoted prices in active markets for identical assets and liabilities.

Investments, Assets Designated for Retirement and Pension Plans and Associated Liabilities

The Company has a U.S. non-qualified deferred compensation plan that consists primarily of U.S. marketable securities and mutual funds. The aggregate cost basis for these investments was $18.5 million and $17.2 million as of June 30, 2020 and December 31, 2019, respectively.

The Company also maintains a pension plan for certain current and former employees in Germany. The pensions are individually fixed Euro amounts that vary depending on the function and the eligible years of service of the employee. The Company’s investment strategy is to support its pension obligations through reinsurance contracts. The BaFin—German Federal Financial Supervisory Authority—supervises the insurance companies and the reinsurance contracts. The BaFin requires each reinsurance contract to guarantee a fixed minimum return. The Company’s pension benefits are fully reinsured by group insurance contracts with ERGO Lebensversicherung AG, and the group insurance contracts are measured in accordance with BaFin guidelines (including mortality tables and discount rates) which are considered Level 2 inputs.

The following tables provide a summary of the fair value measurements for each major category of investments, assets designated for retirement and pension plans and associated liabilities measured at fair value:


			Balance Sheet Classification
	Fair Value		Other Current Assets		Goodwill		Assets Designated for Retirement and Pension Plans		Investments		Other Current Liabilities		Retirement and Pension Plans
Balance at June 30, 2020

Measured on a recurring basis:
Level 1⁽¹⁾:
U.S. non-qualified deferred compensation plan	$	26,085	$	—	$	—	$	—	$	26,085	$	—	$	—

Level 2⁽²⁾:
Retirement and pension plan assets	15,321		1,320		—		14,001		—		—		—
Pension benefit obligation	(20,953)		—		—		—		—		(1,320)		(19,633)
Total Level 2	(5,632)		1,320		—		14,001		—		(1,320)		(19,633)

Measured on a non-recurring basis:
Level 3⁽³⁾⁽⁴⁾:
Goodwill	91,271		—		91,271		—		—		—		—

Total	$	111,724	$	1,320	$	91,271	$	14,001	$	26,085	$	(1,320)	$	(19,633)


			Balance Sheet Classification
	Fair Value		Other Current Assets		Assets Designated for Retirement and Pension Plans		Investments		Other Current Liabilities		Retirement and Pension Plans
Balance at December 31, 2019

Measured on a recurring basis:
Level 1⁽¹⁾:
U.S. non-qualified deferred compensation plan	$	25,409	$	—	$	—	$	25,409	$	—	$	—

Level 2⁽²⁾:
Retirement and pension plan assets	15,296		1,318		13,978		—		—		—
Pension benefit obligation	(20,918)		—		—		—		(1,318)		(19,600)
Total Level 2	(5,622)		1,318		13,978		—		(1,318)		(19,600)

Total	$	19,787	$	1,318	$	13,978	$	25,409	$	(1,318)	$	(19,600)

(1)Level 1 – Quoted prices in active markets for identical assets and liabilities.

(2)Level 2 – Quoted prices in active markets for similar assets and liabilities, or other inputs that are observable for the asset or liability, either directly or indirectly, for substantially the full term of the financial instrument.

(3)Level 3 - Unobservable inputs that are supported by little or no market activity and that are significant to the fair value of the assets and liabilities. This includes certain pricing models, discounted cash flow methodologies and similar techniques that use significant unobservable inputs.

(4)In accordance with Subtopic 350-20, goodwill with a carrying value of $33.0 million was written down to its implied fair value of zero, resulting in the revised total goodwill of $91.3 million and an impairment charge of $33.0 million in earnings.

Contingent Consideration

The former owners of the Company's prior year acquisitions are eligible to receive additional cash consideration based on the attainment of certain operating metrics in the periods subsequent to acquisition. Contingent consideration is valued using significant inputs that are not observable in the market which are defined as Level 3 inputs pursuant to fair value measurement accounting. The Company determines the fair value of contingent consideration using discounted cash flow models.

The following table provides a reconciliation of the beginning and ending balance of Level 3 liabilities for the six months ended June 30, 2020:


	Acquisition Earnout Accruals
Balance at December 31, 2019	$	(5,278)

Earnout payments	5,051

Foreign currency translation	227

Balance at June 30, 2020	$	—

Goodwill

Goodwill represents the difference between the purchase price of acquired companies and the related fair value of the net assets acquired, which is accounted for by the acquisition method of accounting. The Company performs assessments of the carrying value of goodwill at least annually and whenever events occur or circumstances indicate that a carrying amount of goodwill may not be recoverable. During the three months ended June 30, 2020, an interim goodwill impairment evaluation was conducted to determine the fair value of goodwill. Goodwill is valued using significant inputs that are not observable in the market which are defined as Level 3 inputs pursuant to fair value measurement accounting. The Company determines the fair value of goodwill using discounted cash flow models.

The following table provides a reconciliation of the beginning and ending balance of Level 3 assets for the six months ended June 30, 2020:


	Goodwill
Balance at December 31, 2019	$	126,831
Impairment	(32,970)
Foreign currency translation	(2,590)
Balance at June 30, 2020	$	91,271

Comprehensive Text Block List

6 Months Ended

Jun. 30, 2020

Text Block [Abstract]

Comprehensive Income (Loss) Note

Changes in Accumulated Other Comprehensive Income

The changes in Accumulated other comprehensive income (“AOCI”) by component for the six months ended June 30, 2020 are as follows:


	Available- for- Sale Securities		Foreign Currency Translation		Pension		AOCI
Balance at December 31, 2019	$	13	$	6,102	$	(2,291)	$	3,824
Other comprehensive income (loss) before classification, net of tax	(15)		(2,230)		—		(2,245)
Balance at June 30, 2020	$	(2)	$	3,872	$	(2,291)	$	1,579

Income Taxes	6 Months Ended
Income Taxes	Jun. 30, 2020
Income Tax Disclosure [Abstract]
Income Tax Disclosure	Income Taxes The Company reported a loss before taxes of $21.2 million and an income tax provision of $4.5 million for the three months ended June 30, 2020. The Company reported income before taxes of $19.5 million and an income tax provision of $5.2 million for the three months ended June 30, 2019. The effective tax rates for the three months ended June 30, 2020 and 2019, were (21.1)% and 26.7%, respectively. The effective tax rate for the three months ended June 30, 2020 was impacted by the tax effect on goodwill impairment (See Note 8, Goodwill and Other Intangible Assets) and the inability to recognize losses. The effective tax rate for the three months ended June 30, 2019 was impacted by one-time items and the mix of income. The Company reported a loss before taxes of $6.9 million and an income tax provision of $10.2 million for the six months ended June 30, 2020. The Company reported income before taxes of $38.3 million and an income tax provision of $11.9 million for the six months ended June 30, 2020. The effective tax rates for the six months ended June 30, 2020 and 2019, were (149.0)% and 31.2%, respectively. The effective tax rate for the six months ended June 30, 2020 was impacted by the tax effect on goodwill impairment (See Note 8, Goodwill and Other Intangible Assets) and the inability to recognize losses. The effective tax rate for the six months ended June 30, 2019 was impacted by one-time items and the mix of income.

- Definition

The entire disclosure for income taxes. Disclosures may include net deferred tax liability or asset recognized in an enterprise's statement of financial position, net change during the year in the total valuation allowance, approximate tax effect of each type of temporary difference and carryforward that gives rise to a significant portion of deferred tax liabilities and deferred tax assets, utilization of a tax carryback, and tax uncertainties information.

+ References + Details

Restructuring and Related Activities

3 Months Ended

Sep. 30, 2019

Restructuring and Related Activities [Abstract]

Restructuring and Related Activities Disclosure

Restructuring

During the three months ended September 30, 2019, the Company recorded restructuring charges of $4.1 million in connection with initiatives to integrate the Company's existing Brazil operations into the 2GET business operation. The Americas incurred $4.1 million in restructuring charges, while Global Operations Support incurred less than $0.1 million. The restructuring charges primarily consist of employee-related costs for the Company's existing Brazil operations.

Changes to the accrual for restructuring charges for the six months ended June 30, 2020, are as follows:


	Employee Related
Outstanding on December 31, 2019	$	3,245

Cash payments	(1,230)
Non cash write offs	(176)

Exchange rate fluctuations	(778)
Outstanding on June 30, 2020	$	1,061

Compensation Related Costs, Share Based Payments

6 Months Ended

Jun. 30, 2020

Share-based Payment Arrangement [Abstract]

Share-based Payment Arrangement

Stock-Based Compensation

On May 28, 2020, the stockholders of the Company approved an amendment to the Company's Second Amended and Restated 2012 Heidrick & Struggles GlobalShare Program (as so amended, the "Third A&R 2012 Program") to increase the number of shares of Common Stock reserved for issuance under the 2012 Program by 500,000 shares. The Third A&R 2012 Program provides for grants of stock options, stock appreciation rights, and other stock-based compensation awards that are valued based upon the grant date fair value of shares. These awards may be granted to directors, selected employees and independent contractors.

As of June 30, 2020, 2,879,025 awards have been issued under the Third A&R 2012 Program and 1,168,741 shares remain available for future awards, including 697,766 forfeited awards. The Third A&R 2012 Program provides that no awards can be granted after May 24, 2028.

The Company measures its stock-based compensation costs based on the grant date fair value of the awards and recognizes these costs over the requisite service period.

A summary of information with respect to stock-based compensation is as follows:


	Three Months Ended June 30,						Six Months Ended June 30,
	2020		2019		2020		2019
Salaries and benefits (1)	$	991	$	2,976	$	2,795	$	4,647
General and administrative expenses	460		460		460		460
Income tax benefit related to stock-based compensation included in net income	385		908		864		1,349

(1) Includes $0.1 million of expense and $0.1 million of expense related to cash settled restricted stock units for the three months ended June 30, 2020 and 2019, respectively, and $0.7 million of income and $0.4 million of expense related to cash settled restricted stock units for the six months ended June 30, 2020 and 2019, respectively.

Restricted Stock Units

Restricted stock units are generally subject to ratable vesting over a three-year period. A portion of the Company's restricted stock units are subject to ratable vesting over a four-year period. Compensation expense related to service-based restricted stock units is recognized on a straight-line basis over the vesting period.

Restricted stock unit activity for the six months ended June 30, 2020 is as follows:


	Number of Restricted Stock Units	Weighted- Average Grant-Date Fair Value
Outstanding on December 31, 2019	598,988	$	32.25
Granted	206,737	23.39
Vested and converted to common stock	(173,086)	28.33
Forfeited	(14,643)	34.32
Outstanding on June 30, 2020	617,996	$	30.34

As of June 30, 2020, there was $9.1 million of pre-tax unrecognized compensation expense related to unvested restricted stock units, which is expected to be recognized over a weighted average of 2.4 years.

Performance Stock Units

The Company grants performance stock units to certain of its senior executives. The performance stock units are generally subject to a cliff vesting at the end of a three-year period. The vesting will vary between 0% and 200% based on the attainment of operating income goals over the three-year vesting period. The performance stock units are expensed on a straight-line basis over the three-year vesting period.

During the six months ended June 30, 2020, performance stock units were granted to certain employees of the Company and are subject to a cliff vesting period of three years and certain other performance conditions. Half of the award is based on the achievement of certain operating margin thresholds and half of the award is based on the Company's total shareholder return, relative to a peer group. The fair value of the awards based on total shareholder return was determined using the Monte-Carlo simulation model. A Monte Carlo simulation model uses stock price volatility and other variables to estimate the probability of satisfying the performance conditions and the resulting fair value of the award.

Performance stock unit activity for the six months ended June 30, 2020 is as follows:


	Number of Performance Stock Units	Weighted- Average Grant-Date Fair Value
Outstanding on December 31, 2019	179,559	$	32.63
Granted	105,847	23.52
Vested and converted to common stock	(50,472)	26.69
Forfeited	—	—
Outstanding on June 30, 2020	234,934	$	29.80

As of June 30, 2020, there was $4.3 million of pre-tax unrecognized compensation expense related to unvested performance stock units, which is expected to be recognized over a weighted average of 2.2 years.

Phantom Stock Units

Phantom stock units are grants of phantom stock with respect to shares of the Company's common stock that are settled in cash and are subject to various restrictions, including restrictions on transferability, vesting and forfeiture provisions. Shares of phantom stock that do not vest for any reason will be forfeited by the recipient and will revert to the Company.

Phantom stock units were granted to certain employees of the Company and are subject to vesting over a period of four years and certain other conditions, including continued service to the Company. As a result of the cash-settlement feature of the awards, the Company considers the awards to be liability awards, which are measured at fair value at each reporting date and

the vested portion of the award is recognized as a liability to the extent that the service condition is deemed probable. The fair value of the phantom stock awards on the balance sheet date was determined using the closing share price of the Company's common stock on that date.

The Company recorded phantom stock-based compensation expense of $0.1 million and $0.1 million during the three months ended June 30, 2020 and 2019, respectively. The Company recorded phantom stock-based compensation income of $0.7 million and expense of $0.4 million during the six months ended June 30, 2020 and 2019, respectively.

Phantom stock unit activity for the six months ended June 30, 2020 is as follows:


			Number of Phantom Stock Units
Outstanding on December 31, 2019			266,060
Granted			—
Vested			—
Forfeited			(11,676)
Outstanding on June 30, 2020			254,384

As of June 30, 2020, there was $2.2 million of pre-tax unrecognized compensation expense related to unvested phantom stock units, which is expected to be recognized over a weighted average of 2.8 years.

Deferred Costs, Capitalized, Prepaid, and Other Assets

6 Months Ended

Jun. 30, 2020

Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]

Additional Financial Information Disclosure

Other Current Assets

The components of other current assets are as follows:


	June 30, 2020		December 31, 2019
Contract assets	$	23,640	$	22,257
Other	4,171		5,591
Total other current assets	$	27,811	$	27,848

Debt	6 Months Ended
Debt	Jun. 30, 2020
Debt Disclosure [Abstract]
Debt Disclosure	Line of Credit On October 26, 2018, the Company entered into a new Credit Agreement (the "2018 Credit Agreement") to replace the Second Amended and Restated Credit Agreement (the "Restated Credit Agreement") executed on June 30, 2015. The 2018 Credit Agreement provides the Company with a senior unsecured revolving line of credit with an aggregate commitment of $175 million, which includes a sublimit of $25 million for letters of credit, and a $10 million swingline loan sublimit. The agreement also includes a $75 million expansion feature. The 2018 Credit Agreement will mature in October 2023. Borrowings under the 2018 Credit Agreement bear interest at the Company's election of the Alternate Base Rate (as defined in the 2018 Credit Agreement) or Adjusted LIBOR (as defined in the 2018 Credit Agreement) plus a spread as determined by the Company's leverage ratio. Borrowings under the 2018 Credit Agreement may be used for working capital, capital expenditures, Permitted Acquisitions (as defined in the 2018 Credit Agreement) and for other general purposes of the Company and its subsidiaries. The obligations under the 2018 Credit Agreement are guaranteed by certain of the Company's subsidiaries. The Company capitalized approximately $1.0 million of loan acquisition costs related to the 2018 Credit Agreement, which will be amortized over the term of the agreement. During the six months ended June 30, 2020, the Company borrowed $100.0 million under the 2018 Credit Agreement. As of June 30, 2020, the borrowings outstanding under the revolving line of credit bear interest at a rate of 1.44% per annum. The Company elected to draw down a portion of the available funds from its revolving line of credit as a precautionary measure to increase its cash position and further enhance its financial flexibility in light of current uncertainty in the global markets resulting from the COVID-19 outbreak. As of June 30, 2020, the Company had $100.0 million of outstanding borrowings. As of December 31, 2019, the Company had no outstanding borrowings. The Company was in compliance with the financial and other covenants under the 2018 Credit Agreement and no event of default existed.

Goodwill and Other Intangible Assets

6 Months Ended

Jun. 30, 2020

Goodwill and Intangible Assets Disclosure [Abstract]

Goodwill and Intangible Assets Disclosure

Goodwill and Other Intangible Assets

Goodwill

The Company's goodwill by segment is as follows:


	June 30, 2020		December 31, 2019
Executive Search
Americas	$	91,271	$	92,497
Europe	—		25,579
Asia Pacific	—		8,755






Total goodwill	$	91,271	$	126,831

Changes in the carrying amount of goodwill by segment for the six months ended June 30, 2020, are as follows:


	Executive Search
	Americas		Europe		Asia Pacific		Total
Goodwill	$	92,497	$	25,579	$	8,755	$	126,831
Accumulated impairment losses	—		—		—		—
Balance at December 31, 2019	92,497		25,579		8,755		126,831


Impairment	—		(24,475)		(8,495)		(32,970)
Foreign currency translation	(1,226)		(1,104)		(260)		(2,590)

Goodwill	91,271		24,475		8,495		124,241
Accumulated impairment losses	—		(24,475)		(8,495)		(32,970)
Balance at June 30, 2020	$	91,271	$	—	$	—	$	91,271

During the three months ended June 30, 2020, and as a direct result of the economic impact of COVID-19, the Company experienced a decline in demand for our executive search services and a lengthening of the executive search process due to a slow-down in client decision making, which had a material adverse impact on our results of operations. As a result, the Company identified a triggering event and performed an interim goodwill impairment evaluation during the three months ended June 30, 2020.

Based on the results of the impairment evaluation, the Company determined that the goodwill within the Europe and Asia Pacific reporting units was impaired, which resulted in an impairment charge of $24.5 million in Europe and $8.5 million in Asia Pacific to write-off all of the goodwill associated with each reporting unit. The impairment charge is recorded within Impairment charges in the Condensed Consolidated Statements of Comprehensive Income (Loss) for the three and six months

ended June 30, 2020. The impairment was non-cash in nature and did not affect our current liquidity, cash flows, borrowing capability or operations; nor did it impact the debt covenants under our credit agreement.

Other Intangible Assets, net

The Company’s other intangible assets, net by segment, are as follows:


	June 30, 2020		December 31, 2019
Executive Search
Americas	$	300	$	557
Europe	1,006		1,314
Asia Pacific	55		64




Total other intangible assets, net	$	1,361	$	1,935

The carrying amount of amortizable intangible assets and the related accumulated amortization are as follows:


	Weighted Average Life (Years)	June 30, 2020										December 31, 2019
				Gross Carrying Amount		Accumulated Amortization		Net Carrying Amount		Gross Carrying Amount		Accumulated Amortization		Net Carrying Amount
Client relationships	6.6	$	15,960	$	(14,762)	$	1,198	$	16,302	$	(14,683)	$	1,619
Trade name	5.0	266		(103)		163		362		(46)		316
Total intangible assets	6.4	$	16,226	$	(14,865)	$	1,361	$	16,664	$	(14,729)	$	1,935

Intangible asset amortization expense for the three months ended June 30, 2020 and 2019 was $0.2 million and $0.2 million, respectively. Intangible amortization expense for the six months ended June 30, 2020 and 2019 was $0.4 million and $0.5 million, respectively.

The Company evaluated the recoverability of its other intangible assets during the three months ended June 30, 2020 and determined that the carrying value of the other intangible assets and long-lived assets was recoverable. The Company continues to monitor the impact of the economic downturn resulting from COVID-19 for additional potential impairment indicators related to other intangible assets.

The Company's estimated future amortization expense related to intangible assets as of June 30, 2020, for the years ended December 31 is as follows:


	Estimated Future Amortization
2020	$	322
2021	457
2022	292
2023	174
2024	71
Thereafter	45
Total	$	1,361

Accounting Policies (Tables)

6 Months Ended

Jun. 30, 2020

Accounting Policies [Abstract]

Schedule of Cash and Cash Equivalents


	June 30,						December 31,
	2020		2019		2019		2018
Cash and cash equivalents	$	218,760	$	105,314	$	271,719	$	279,906
Restricted cash included within other current assets	—		—		—		108
Restricted cash included within other non-current assets	—		—		—		248
Total cash, cash equivalents and restricted cash	$	218,760	$	105,314	$	271,719	$	280,262

Restrictions on Cash and Cash Equivalents


	June 30,						December 31,
	2020		2019		2019		2018
Cash and cash equivalents	$	218,760	$	105,314	$	271,719	$	279,906
Restricted cash included within other current assets	—		—		—		108
Restricted cash included within other non-current assets	—		—		—		248
Total cash, cash equivalents and restricted cash	$	218,760	$	105,314	$	271,719	$	280,262

Schedule of Earnings Per Share, Basic and Diluted

The following table sets forth the computation of basic and diluted earnings (loss) per share:


	Three Months Ended June 30,						Six Months Ended June 30,
	2020		2019		2020		2019
Net income (loss)	$	(25,733)	$	14,280	$	(17,067)	$	26,367
Weighted average shares outstanding:
Basic	19,298		19,120		19,245		19,062
Effect of dilutive securities:
Restricted stock units	—		202		—		300
Performance stock units	—		109		—		169
Diluted	19,298		19,431		19,245		19,531
Basic earnings per share	$	(1.33)	$	0.75	$	(0.89)	$	1.38
Diluted earnings per share	$	(1.33)	$	0.73	$	(0.89)	$	1.35

Revenue from Contract with Customer (Tables)

6 Months Ended

Jun. 30, 2020

Revenue from Contract with Customer [Abstract]

Contract with Customer, Contract Asset, Contract Liability, and Receivable

The following table outlines the changes in the contract asset and liability balances during the period:


	June 30, 2020		December 31, 2019		Change
Contract assets
Unbilled receivables, net	$	10,901	$	7,585	$	3,316
Contract assets	12,739		14,672		(1,933)
Total contract assets	23,640		22,257		1,383

Contract liabilities
Deferred revenue	$	38,122	$	41,267	$	(3,145)

Credit Losses (Tables)

6 Months Ended

Jun. 30, 2020

Credit Loss [Abstract]

Accounts Receivable, Allowance for Credit Loss

The activity in the allowance for credit losses on the Company's trade receivables is as follows:


Balance at December 31, 2019	$	5,140
Provision for credit losses	4,298
Write-offs	(1,774)
Foreign currency translation	(597)
Balance at June 30, 2020	$	7,067

Debt Securities, Available-for-sale


	Less Than 12 Months						Balance Sheet Classification
Balance at June 30, 2020	Fair Value		Unrealized Loss		Cash and Cash Equivalents		Marketable Securities
U.S. Treasury securities	$	47,004	$	2	$	—	$	47,004

Property, Plant, and Equipment (Tables)

6 Months Ended

Jun. 30, 2020

Property, Plant and Equipment [Abstract]

Property, Plant and Equipment

The components of the Company’s property and equipment are as follows:


	June 30, 2020		December 31, 2019
Leasehold improvements	$	48,571	$	47,269
Office furniture, fixtures and equipment	18,156		17,740
Computer equipment and software	25,872		27,531
Property and equipment, gross	92,599		92,540
Accumulated depreciation	(64,022)		(63,890)
Property and equipment, net	$	28,577	$	28,650

Segment Reporting (Tables)

6 Months Ended

Jun. 30, 2020

Segment Reporting [Abstract]

Schedule of Segment Reporting Information, by Segment

The revenue and operating income (loss) by segment are as follows:


	Three Months Ended June 30,						Six Months Ended June 30, 2020
	2020		2019		2020		2019
Revenue
Executive Search
Americas	$	84,840	$	100,517	$	185,141	$	199,822
Europe	30,124		34,864		63,206		68,417
Asia Pacific	19,190		23,163		41,260		48,610
Total Executive Search	134,154		158,544		289,607		316,849
Heidrick Consulting	11,449		14,578		27,477		27,867
Revenue before reimbursements (net revenue)	145,603		173,122		317,084		344,716
Reimbursements	2,232		5,051		5,598		9,731
Total revenue	$	147,835	$	178,173	$	322,682	$	354,447


	Three Months Ended June 30,						Six Months Ended June 30, 2020
	2020		2019		2020		2019
Operating income (loss)
Executive Search
Americas	$	23,102	$	28,551	$	48,834	$	51,000
Europe (1)	(23,067)		1,157		(20,018)		3,322
Asia Pacific (2)	(7,329)		3,315		(4,827)		8,221
Total Executive Search	(7,294)		33,023		23,989		62,543
Heidrick Consulting	(8,321)		(4,793)		(12,413)		(9,620)
Total segment operating income (loss)	(15,615)		28,230		11,576		52,923
Global Operations Support	(8,371)		(9,877)		(17,410)		(18,179)
Total operating income (loss)	$	(23,986)	$	18,353	$	(5,834)	$	34,744

(1) Europe includes goodwill impairment charges of $24.5 million for the three and six months ended June 30, 2020.

(2) Asia Pacific includes goodwill impairment charges of $8.5 million for the three and six months ended June 30, 2020

Leases, Codification Topic 842 (Tables)

6 Months Ended

Jun. 30, 2020

Leases [Abstract]

Lease, Cost

Lease cost components included within General and Administrative Expenses in our Condensed Consolidated Statements of Comprehensive Income (Loss) were as follows for the six months ended June 30,:


	Three Months Ended June 30,						Six Months Ended June 30,
	2020		2019		2020		2019
Operating lease cost	$	6,186	$	5,907	$	12,447	$	12,480
Variable lease cost	1,771		2,057		3,844		3,914
Total lease cost	$	7,957	$	7,964	$	16,291	$	16,394

Schedule of Cash Flow Information Related to Operating Leases

Supplemental cash flow information related to the Company's operating leases is as follows for the six months ended June 30,:


	2020		2019
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows from operating leases	$	15,599	$	16,886
Right-of-use assets obtained in exchange for lease obligations:
Operating leases	$	10,095	$	11,441

Lessee Operating Lease Weighted Averages

The weighted average remaining lease term and weighted average discount rate for operating leases as of June 30, is as follows:


	2020		2019
Weighted Average Remaining Lease Term
Operating leases	4.6 years		4.7 years
Weighted Average Discount Rate
Operating leases	3.77	%	3.97	%

Lessee, Operating Lease, Liability, Maturity

The future maturities of the Company's operating lease liabilities as of June 30, 2020, for the years ended December 31 is as follows:


	Operating Lease Maturity
2020	$	13,877
2021	29,735
2022	26,077
2023	23,065
2024	12,625
Thereafter	12,824
Total lease payments	118,203
Less: Interest	(9,214)
Present value of lease liabilities	$	108,989

Fair Value Measures and Disclosures (Tables)

6 Months Ended

Jun. 30, 2020

Fair Value Disclosures [Abstract]

Unrealized Gain (Loss) on Investments

The Company's cash, cash equivalents, and marketable securities by significant investment category are as follows:


	Fair Value												Balance Sheet Classification
	Amortized Cost		Unrealized Gains		Unrealized Losses		Fair Value		Cash and Cash Equivalents		Marketable Securities
Balance at June 30, 2020
Cash									$	174,908	$	—

Level 1⁽¹⁾:
Money market funds									43,852		—
U.S. Treasury securities	69,057		—		2		69,055		—		69,055
Total Level 1	69,057		—		2		69,055		43,852		69,055




Total	$	69,057	$	—	$	2	$	69,055	$	218,760	$	69,055


	Fair Value												Balance Sheet Classification
	Amortized Cost		Unrealized Gains		Unrealized Losses		Fair Value		Cash and Cash Equivalents		Marketable Securities
Balance at December 31, 2019
Cash									$	177,493	$	—

Level 1⁽¹⁾:
Money market funds									15,661		—
U.S. Treasury securities	139,705		13		—		139,718		78,565		61,153
Total Level 1	139,705		13		—		139,718		94,226		61,153

Total	$	139,705	$	13	$	—	$	139,718	$	271,719	$	61,153

(1)Level 1 – Quoted prices in active markets for identical assets and liabilities.

Fair Value, Separate Account Investment


			Balance Sheet Classification
	Fair Value		Other Current Assets		Goodwill		Assets Designated for Retirement and Pension Plans		Investments		Other Current Liabilities		Retirement and Pension Plans
Balance at June 30, 2020

Measured on a recurring basis:
Level 1⁽¹⁾:
U.S. non-qualified deferred compensation plan	$	26,085	$	—	$	—	$	—	$	26,085	$	—	$	—

Level 2⁽²⁾:
Retirement and pension plan assets	15,321		1,320		—		14,001		—		—		—
Pension benefit obligation	(20,953)		—		—		—		—		(1,320)		(19,633)
Total Level 2	(5,632)		1,320		—		14,001		—		(1,320)		(19,633)

Measured on a non-recurring basis:
Level 3⁽³⁾⁽⁴⁾:
Goodwill	91,271		—		91,271		—		—		—		—

Total	$	111,724	$	1,320	$	91,271	$	14,001	$	26,085	$	(1,320)	$	(19,633)


			Balance Sheet Classification
	Fair Value		Other Current Assets		Assets Designated for Retirement and Pension Plans		Investments		Other Current Liabilities		Retirement and Pension Plans
Balance at December 31, 2019

Measured on a recurring basis:
Level 1⁽¹⁾:
U.S. non-qualified deferred compensation plan	$	25,409	$	—	$	—	$	25,409	$	—	$	—

Level 2⁽²⁾:
Retirement and pension plan assets	15,296		1,318		13,978		—		—		—
Pension benefit obligation	(20,918)		—		—		—		(1,318)		(19,600)
Total Level 2	(5,622)		1,318		13,978		—		(1,318)		(19,600)

Total	$	19,787	$	1,318	$	13,978	$	25,409	$	(1,318)	$	(19,600)

(1)Level 1 – Quoted prices in active markets for identical assets and liabilities.

Investments and Other Noncurrent Assets

The following table provides a reconciliation of the beginning and ending balance of Level 3 liabilities for the six months ended June 30, 2020:


	Acquisition Earnout Accruals
Balance at December 31, 2019	$	(5,278)

Earnout payments	5,051

Foreign currency translation	227

Balance at June 30, 2020	$	—

Goodwill

Goodwill represents the difference between the purchase price of acquired companies and the related fair value of the net assets acquired, which is accounted for by the acquisition method of accounting. The Company performs assessments of the carrying value of goodwill at least annually and whenever events occur or circumstances indicate that a carrying amount of goodwill may not be recoverable. During the three months ended June 30, 2020, an interim goodwill impairment evaluation was conducted to determine the fair value of goodwill. Goodwill is valued using significant inputs that are not observable in the market which are defined as Level 3 inputs pursuant to fair value measurement accounting. The Company determines the fair value of goodwill using discounted cash flow models.

The following table provides a reconciliation of the beginning and ending balance of Level 3 assets for the six months ended June 30, 2020:


	Goodwill
Balance at December 31, 2019	$	126,831
Impairment	(32,970)
Foreign currency translation	(2,590)
Balance at June 30, 2020	$	91,271

Comprehensive Text Block List (Tables)

6 Months Ended

Jun. 30, 2020

Text Block [Abstract]

Schedule of Accumulated Other Comprehensive Income (Loss)

The changes in Accumulated other comprehensive income (“AOCI”) by component for the six months ended June 30, 2020 are as follows:


	Available- for- Sale Securities		Foreign Currency Translation		Pension		AOCI
Balance at December 31, 2019	$	13	$	6,102	$	(2,291)	$	3,824
Other comprehensive income (loss) before classification, net of tax	(15)		(2,230)		—		(2,245)
Balance at June 30, 2020	$	(2)	$	3,872	$	(2,291)	$	1,579

Restructuring and Related Activities (Tables)

6 Months Ended

Jun. 30, 2020

Restructuring and Related Activities [Abstract]

Restructuring and Related Costs

Changes to the accrual for restructuring charges for the six months ended June 30, 2020, are as follows:


	Employee Related
Outstanding on December 31, 2019	$	3,245

Cash payments	(1,230)
Non cash write offs	(176)

Exchange rate fluctuations	(778)
Outstanding on June 30, 2020	$	1,061

Compensation Related Costs, Share Based Payments (Tables)

6 Months Ended

Jun. 30, 2020

Share-based Payment Arrangement [Abstract]

Share-based Payment Arrangement, Expensed and Capitalized, Amount

A summary of information with respect to stock-based compensation is as follows:


	Three Months Ended June 30,						Six Months Ended June 30,
	2020		2019		2020		2019
Salaries and benefits (1)	$	991	$	2,976	$	2,795	$	4,647
General and administrative expenses	460		460		460		460
Income tax benefit related to stock-based compensation included in net income	385		908		864		1,349

Share-based Payment Arrangement, Restricted Stock Unit, Activity

Restricted stock unit activity for the six months ended June 30, 2020 is as follows:


	Number of Restricted Stock Units	Weighted- Average Grant-Date Fair Value
Outstanding on December 31, 2019	598,988	$	32.25
Granted	206,737	23.39
Vested and converted to common stock	(173,086)	28.33
Forfeited	(14,643)	34.32
Outstanding on June 30, 2020	617,996	$	30.34

Share-based Payment Arrangement, Performance Shares, Outstanding Activity


	Number of Performance Stock Units	Weighted- Average Grant-Date Fair Value
Outstanding on December 31, 2019	179,559	$	32.63
Granted	105,847	23.52
Vested and converted to common stock	(50,472)	26.69
Forfeited	—	—
Outstanding on June 30, 2020	234,934	$	29.80

Share-Based Compensation, Phantom Shares Award Outstanding Activity

Phantom stock unit activity for the six months ended June 30, 2020 is as follows:


			Number of Phantom Stock Units
Outstanding on December 31, 2019			266,060
Granted			—
Vested			—
Forfeited			(11,676)
Outstanding on June 30, 2020			254,384

Deferred Costs, Capitalized, Prepaid, and Other Assets (Tables)

6 Months Ended

Jun. 30, 2020

Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]

Schedule of Other Current Assets

The components of other current assets are as follows:


	June 30, 2020		December 31, 2019
Contract assets	$	23,640	$	22,257
Other	4,171		5,591
Total other current assets	$	27,811	$	27,848

Goodwill and Other Intangible Assets (Tables)

6 Months Ended

Jun. 30, 2020

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of Intangible Assets and Goodwill

The Company's goodwill by segment is as follows:


	June 30, 2020		December 31, 2019
Executive Search
Americas	$	91,271	$	92,497
Europe	—		25,579
Asia Pacific	—		8,755






Total goodwill	$	91,271	$	126,831

Schedule of Goodwill

Changes in the carrying amount of goodwill by segment for the six months ended June 30, 2020, are as follows:


	Executive Search
	Americas		Europe		Asia Pacific		Total
Goodwill	$	92,497	$	25,579	$	8,755	$	126,831
Accumulated impairment losses	—		—		—		—
Balance at December 31, 2019	92,497		25,579		8,755		126,831


Impairment	—		(24,475)		(8,495)		(32,970)
Foreign currency translation	(1,226)		(1,104)		(260)		(2,590)

Goodwill	91,271		24,475		8,495		124,241
Accumulated impairment losses	—		(24,475)		(8,495)		(32,970)
Balance at June 30, 2020	$	91,271	$	—	$	—	$	91,271

Schedule of Finite-Lived Intangible Assets

The Company’s other intangible assets, net by segment, are as follows:


	June 30, 2020		December 31, 2019
Executive Search
Americas	$	300	$	557
Europe	1,006		1,314
Asia Pacific	55		64




Total other intangible assets, net	$	1,361	$	1,935

The carrying amount of amortizable intangible assets and the related accumulated amortization are as follows:


	Weighted Average Life (Years)	June 30, 2020										December 31, 2019
				Gross Carrying Amount		Accumulated Amortization		Net Carrying Amount		Gross Carrying Amount		Accumulated Amortization		Net Carrying Amount
Client relationships	6.6	$	15,960	$	(14,762)	$	1,198	$	16,302	$	(14,683)	$	1,619
Trade name	5.0	266		(103)		163		362		(46)		316
Total intangible assets	6.4	$	16,226	$	(14,865)	$	1,361	$	16,664	$	(14,729)	$	1,935

Schedule of Finite-Lived Intangible Assets, Future Amortization Expense

The Company's estimated future amortization expense related to intangible assets as of June 30, 2020, for the years ended December 31 is as follows:


	Estimated Future Amortization
2020	$	322
2021	457
2022	292
2023	174
2024	71
Thereafter	45
Total	$	1,361

Accounting Policies (Details) - USD ($)	3 Months Ended				6 Months Ended
Accounting Policies (Details) - USD ($)	Jun. 30, 2020	Mar. 31, 2020	Jun. 30, 2019	Mar. 31, 2019	Jun. 30, 2020	Jun. 30, 2019	Dec. 31, 2019	Dec. 31, 2018
Accounting Policies [Abstract]
Cash and Cash Equivalents, at Carrying Value	$ 218,760,000		$ 105,314,000		$ 218,760,000	$ 105,314,000	$ 271,719,000	$ 279,906,000
Cash and Cash Equivalents [Line Items]
Net Income (Loss) Attributable to Parent	$ (25,733,000)	$ 8,666,000	$ 14,280,000	$ 12,087,000	$ (17,067,000)	$ 26,367,000
Weighted Average Number of Shares Outstanding, Basic	19,298,000		19,120,000		19,245,000	19,062,000
Weighted Average Number of Shares Outstanding, Diluted	19,298,000		19,431,000		19,245,000	19,531,000
Earnings Per Share, Basic	$ (1.33)		$ 0.75		$ (0.89)	$ 1.38
Earnings Per Share, Diluted	$ (1.33)		$ 0.73		$ (0.89)	$ 1.35
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents	$ 218,760,000		$ 105,314,000		$ 218,760,000	$ 105,314,000	271,719,000	280,262,000
Restricted Stock Units (RSUs)
Cash and Cash Equivalents [Line Items]
Incremental Common Shares Attributable to Dilutive Effect of Share-based Payment Arrangements	0		202,000		0	300,000
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount	229,000				392,000
Performance Shares
Cash and Cash Equivalents [Line Items]
Incremental Common Shares Attributable to Dilutive Effect of Share-based Payment Arrangements	0		109,000		0	169,000
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount	30,000				84,000
Other Noncurrent Assets [Member]
Accounting Policies [Abstract]
Restricted Cash	$ 0		$ 0		$ 0	$ 0	0	248,000
Cash and Cash Equivalents [Line Items]
Restricted Cash	0		0		0	0	0	248,000
Other Current Assets [Member]
Accounting Policies [Abstract]
Restricted Cash	0		0		0	0	0	108,000
Cash and Cash Equivalents [Line Items]
Restricted Cash	$ 0		$ 0		$ 0	$ 0	$ 0	$ 108,000

Revenue from Contract with Customer (Details) - USD ($)	6 Months Ended
Revenue from Contract with Customer (Details) - USD ($)	Jun. 30, 2020	Dec. 31, 2019	Jun. 30, 2019
Revenue from Contract with Customer [Abstract]
Unbilled Contracts Receivable	$ 10,901,000	$ 7,585,000
Contract with Customer, Asset, after Allowance for Credit Loss	12,739,000	14,672,000
Increase (Decrease) in Unbilled Contracts Receivable	3,316,000
Increase (Decrease) In Contract With Customer, After Allowance For Credit Loss	(1,933,000)
Increase (Decrease) in Contract with Customer, Asset	1,383,000
Deferred Revenue, Current	38,122,000	$ 41,267,000
Deferred Revenue, Period Increase (Decrease)	(3,145,000)
Deferred Revenue, Revenue Recognized	29,500,000
Contract with Customer, Performance Obligation Satisfied in Previous Period	12,900,000
Contract with Customer, Asset, before Allowance for Credit Loss, Current	$ 23,640,000		$ 22,257,000

Credit Losses (Details) - USD ($)	6 Months Ended
Credit Losses (Details) - USD ($)	Jun. 30, 2020	Dec. 31, 2019
Credit Loss [Abstract]
Allowance for Doubtful Accounts, Premiums and Other Receivables	$ 7,067,000	$ 5,140,000
Accounts Receivable, Credit Loss Expense (Reversal)	4,298,000
Accounts Receivable, Allowance for Credit Loss, Writeoff	(1,774,000)
Debt Securities, Available-for-sale [Line Items]
Available-for-sale Securities	47,004,000
Debt Securities, Available-for-sale, Unrealized Gain (Loss)	2,000
Financing Receivable, Allowance for Credit Loss, Foreign Currency Translation	(597,000)
Cash and Cash Equivalents
Debt Securities, Available-for-sale [Line Items]
Available-for-sale Securities	0
Investments
Debt Securities, Available-for-sale [Line Items]
Available-for-sale Securities	$ 47,004,000

Property, Plant, and Equipment (Details) - USD ($)	3 Months Ended		6 Months Ended
Property, Plant, and Equipment (Details) - USD ($)	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019	Dec. 31, 2019
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Gross	$ 92,599,000		$ 92,599,000		$ 92,540,000
Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment	(64,022,000)		(64,022,000)		(63,890,000)
Property, Plant and Equipment, Net	28,577,000		28,577,000		28,650,000
Depreciation	1,900,000	$ 2,400,000	4,100,000	$ 4,900,000
Leasehold Improvements
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Gross	48,571,000		48,571,000		47,269,000
Furniture and Fixtures [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Gross	18,156,000		18,156,000		17,740,000
Computer Equipment [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Gross	$ 25,872,000		$ 25,872,000		$ 27,531,000

Segment Reporting (Details) - USD ($)	3 Months Ended		6 Months Ended
Segment Reporting (Details) - USD ($)	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Revenues [Abstract]
Revenue from Contract with Customer, Excluding Assessed Tax	$ 145,603,000	$ 173,122,000	$ 317,084,000	$ 344,716,000
Revenues	147,835,000	178,173,000	322,682,000	354,447,000
Operating Income (Loss) [Abstract]
Operating Income (Loss)	(23,986,000)	18,353,000	(5,834,000)	34,744,000
Goodwill, Impairment Loss			32,970,000
Reimbursements
Revenues [Abstract]
Revenue from Contract with Customer, Excluding Assessed Tax	2,232,000	5,051,000	5,598,000	9,731,000
Europe
Operating Income (Loss) [Abstract]
Goodwill, Impairment Loss	24,500,000		24,500,000
Asia Pacific
Operating Income (Loss) [Abstract]
Goodwill, Impairment Loss	8,500,000		8,500,000
Executive Search Member \| Americas
Operating Income (Loss) [Abstract]
Goodwill, Impairment Loss			0
Executive Search Member \| Europe
Operating Income (Loss) [Abstract]
Goodwill, Impairment Loss			24,475,000
Executive Search Member \| Asia Pacific
Operating Income (Loss) [Abstract]
Goodwill, Impairment Loss			8,495,000
Operating Segments
Operating Income (Loss) [Abstract]
Operating Income (Loss)	(15,615,000)	28,230,000	11,576,000	52,923,000
Operating Segments \| Executive Search Member
Revenues [Abstract]
Revenue from Contract with Customer, Excluding Assessed Tax	134,154,000	158,544,000	289,607,000	316,849,000
Operating Income (Loss) [Abstract]
Operating Income (Loss)	(7,294,000)	33,023,000	23,989,000	62,543,000
Operating Segments \| Executive Search Member \| Americas
Revenues [Abstract]
Revenue from Contract with Customer, Excluding Assessed Tax	84,840,000	100,517,000	185,141,000	199,822,000
Operating Income (Loss) [Abstract]
Operating Income (Loss)	23,102,000	28,551,000	48,834,000	51,000,000
Operating Segments \| Executive Search Member \| Europe
Revenues [Abstract]
Revenue from Contract with Customer, Excluding Assessed Tax	30,124,000	34,864,000	63,206,000	68,417,000
Operating Income (Loss) [Abstract]
Operating Income (Loss)	(23,067,000)	1,157,000	(20,018,000)	3,322,000
Operating Segments \| Executive Search Member \| Asia Pacific
Revenues [Abstract]
Revenue from Contract with Customer, Excluding Assessed Tax	19,190,000	23,163,000	41,260,000	48,610,000
Operating Income (Loss) [Abstract]
Operating Income (Loss)	(7,329,000)	3,315,000	(4,827,000)	8,221,000
Operating Segments \| Heidrick Consulting
Revenues [Abstract]
Revenue from Contract with Customer, Excluding Assessed Tax	11,449,000	14,578,000	27,477,000	27,867,000
Operating Income (Loss) [Abstract]
Operating Income (Loss)	(8,321,000)	(4,793,000)	(12,413,000)	(9,620,000)
Corporate, Non-Segment
Operating Income (Loss) [Abstract]
Operating Income (Loss)	$ (8,371,000)	$ (9,877,000)	$ (17,410,000)	$ (18,179,000)

Guarantees (Details)	Jun. 30, 2020 USD ($)
Guarantees and Product Warranties [Abstract]
Guarantor Obligations, Maximum Exposure, Undiscounted	$ 2,500,000

Leases, Codification Topic 842 (Details) - USD ($)	3 Months Ended		6 Months Ended
Leases, Codification Topic 842 (Details) - USD ($)	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Leases [Abstract]
Operating Lease, Expense	$ 6,186,000	$ 5,907,000	$ 12,447,000	$ 12,480,000
Variable Lease, Cost	1,771,000	2,057,000	3,844,000	3,914,000
Lease, Cost	$ 7,957,000	$ 7,964,000	16,291,000	16,394,000
Operating Lease, Payments			15,599,000	16,886,000
Right-of-Use Asset Obtained in Exchange for Operating Lease Liability			$ 10,095,000	$ 11,441,000
Operating Lease, Weighted Average Remaining Lease Term	4 years 7 months 6 days	4 years 8 months 12 days	4 years 7 months 6 days	4 years 8 months 12 days
Operating Lease, Weighted Average Discount Rate, Percent	3.77%	3.97%	3.77%	3.97%
Lessee, Operating Lease, Liability, to be Paid, Remainder of Fiscal Year	$ 13,877,000		$ 13,877,000
Lessee, Operating Lease, Liability, to be Paid, Year One	29,735,000		29,735,000
Lessee, Operating Lease, Liability, to be Paid, Year Two	26,077,000		26,077,000
Lessee, Operating Lease, Liability, to be Paid, Year Three	23,065,000		23,065,000
Lessee, Operating Lease, Liability, to be Paid, Year Four	12,625,000		12,625,000
Lessee, Operating Lease, Liability, to be Paid, After Year Four	12,824,000		12,824,000
Lessee, Operating Lease, Liability, to be Paid	118,203,000		118,203,000
Lessee, Operating Lease, Liability, Undiscounted Excess Amount	(9,214,000)		(9,214,000)
Operating Lease, Liability	$ 108,989,000		$ 108,989,000
Minimum [Member] \| Office Leases [Member]
Leases [Abstract]
Lessee, Operating Lease, Term of Contract	1 year		1 year
Lessee, Lease, Description [Line Items]
Lessee, Operating Lease, Term of Contract	1 year		1 year
Minimum [Member] \| Equipment Lease [Member]
Leases [Abstract]
Lessee, Operating Lease, Term of Contract	1 year		1 year
Lessee, Lease, Description [Line Items]
Lessee, Operating Lease, Term of Contract	1 year		1 year
Maximum [Member] \| Office Leases [Member]
Leases [Abstract]
Lessee, Operating Lease, Term of Contract	9 years 10 months 24 days		9 years 10 months 24 days
Lessee, Lease, Description [Line Items]
Lessee, Operating Lease, Term of Contract	9 years 10 months 24 days		9 years 10 months 24 days
Maximum [Member] \| Equipment Lease [Member]
Leases [Abstract]
Lessee, Operating Lease, Term of Contract	4 years 3 months 18 days		4 years 3 months 18 days
Lessee, Lease, Description [Line Items]
Lessee, Operating Lease, Term of Contract	4 years 3 months 18 days		4 years 3 months 18 days

Fair Value Measures and Disclosures (Details) - USD ($)	3 Months Ended			6 Months Ended
Fair Value Measures and Disclosures (Details) - USD ($)	Jun. 30, 2020	Sep. 30, 2019	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019	Dec. 31, 2019	Dec. 31, 2018
Fair Value Disclosures [Abstract]
Cash and Cash Equivalents, at Carrying Value	$ 218,760,000		$ 105,314,000	$ 218,760,000	$ 105,314,000	$ 271,719,000	$ 279,906,000
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and Cash Equivalents, at Carrying Value	218,760,000		105,314,000	218,760,000	105,314,000	271,719,000	$ 279,906,000
Debt Securities, Available-for-sale, Amortized Cost	69,057,000			69,057,000		139,705,000
Marketable Securities	69,055,000			69,055,000		61,153,000
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Gain, before Tax	0			0		13,000
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Loss, before Tax	2,000			2,000		0
Debt Securities, Available-for-sale	69,055,000			69,055,000		139,718,000
Aggregate Cost Basis for Non-Qualified Deferred Compensation Plan	18,500,000			18,500,000		17,200,000
Fair Value, Net Asset (Liability)	111,724,000			111,724,000		19,787,000
Goodwill	91,271,000			91,271,000		126,831,000
Restructuring Charges	32,970,000	$ 4,100,000	$ 0	32,970,000	$ 0
Marketable Securities	69,055,000			69,055,000		61,153,000
Debt Securities, Available-for-sale, Amortized Cost	69,057,000			69,057,000		139,705,000
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Gain, before Tax	0			0		13,000
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Loss, before Tax	2,000			2,000		0
Debt Securities, Available-for-sale	69,055,000			69,055,000		139,718,000
Other Current Assets [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair Value, Net Asset (Liability)	1,320,000			1,320,000		1,318,000
Assets Designated for Retirement and Pension Plans
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair Value, Net Asset (Liability)	14,001,000			14,001,000		13,978,000
Investments
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair Value, Net Asset (Liability)	26,085,000			26,085,000		25,409,000
Other Current Liabilities
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair Value, Net Asset (Liability)	(1,320,000)			(1,320,000)		(1,318,000)
Other Pension Plan
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair Value, Net Asset (Liability)	(19,633,000)			(19,633,000)		(19,600,000)
Fair Value, Inputs, Level 1 [Member]
Fair Value Disclosures [Abstract]
Cash and Cash Equivalents, at Carrying Value	43,852,000			43,852,000		94,226,000
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and Cash Equivalents, at Carrying Value	43,852,000			43,852,000		94,226,000
Debt Securities, Available-for-sale, Amortized Cost	69,057,000			69,057,000		139,705,000
Marketable Securities	69,055,000			69,055,000		61,153,000
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Gain, before Tax	0			0		13,000
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Loss, before Tax	2,000			2,000		0
Debt Securities, Available-for-sale	69,055,000			69,055,000		139,718,000
Deferred Compensation Plan Assets	26,085,000			26,085,000		25,409,000
Marketable Securities	69,055,000			69,055,000		61,153,000
Debt Securities, Available-for-sale, Amortized Cost	69,057,000			69,057,000		139,705,000
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Gain, before Tax	0			0		13,000
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Loss, before Tax	2,000			2,000		0
Debt Securities, Available-for-sale	69,055,000			69,055,000		139,718,000
Fair Value, Inputs, Level 1 [Member] \| Other Current Assets [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Deferred Compensation Plan Assets	0			0		0
Fair Value, Inputs, Level 1 [Member] \| Assets Designated for Retirement and Pension Plans
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Deferred Compensation Plan Assets	0			0		0
Fair Value, Inputs, Level 1 [Member] \| Investments
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Deferred Compensation Plan Assets	26,085,000			26,085,000		25,409,000
Fair Value, Inputs, Level 1 [Member] \| Other Current Liabilities
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Deferred Compensation Plan Assets	0			0		0
Fair Value, Inputs, Level 1 [Member] \| Other Pension Plan
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Deferred Compensation Plan Assets	0			0		0
Fair Value, Inputs, Level 2
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Defined Benefit Plan, Plan Assets, Amount	15,321,000			15,321,000		15,296,000
Defined Benefit Plan, Benefit Obligation	(20,953,000)			(20,953,000)		(20,918,000)
Fair Value, Net Asset (Liability)	(5,632,000)			(5,632,000)		(5,622,000)
Fair Value, Inputs, Level 2 \| Other Current Assets [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Defined Benefit Plan, Plan Assets, Amount	1,320,000			1,320,000		1,318,000
Defined Benefit Plan, Benefit Obligation	0			0		0
Fair Value, Net Asset (Liability)	1,320,000			1,320,000		1,318,000
Fair Value, Inputs, Level 2 \| Assets Designated for Retirement and Pension Plans
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Defined Benefit Plan, Plan Assets, Amount	14,001,000			14,001,000		13,978,000
Defined Benefit Plan, Benefit Obligation	0			0		0
Fair Value, Net Asset (Liability)	14,001,000			14,001,000		13,978,000
Fair Value, Inputs, Level 2 \| Investments
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Defined Benefit Plan, Plan Assets, Amount	0			0		0
Defined Benefit Plan, Benefit Obligation	0			0		0
Fair Value, Net Asset (Liability)	0			0		0
Fair Value, Inputs, Level 2 \| Other Current Liabilities
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Defined Benefit Plan, Plan Assets, Amount	0			0		0
Defined Benefit Plan, Benefit Obligation	(1,320,000)			(1,320,000)		(1,318,000)
Fair Value, Net Asset (Liability)	(1,320,000)			(1,320,000)		(1,318,000)
Fair Value, Inputs, Level 2 \| Other Pension Plan
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Defined Benefit Plan, Plan Assets, Amount	0			0		0
Defined Benefit Plan, Benefit Obligation	(19,633,000)			(19,633,000)		(19,600,000)
Fair Value, Net Asset (Liability)	(19,633,000)			(19,633,000)		(19,600,000)
Fair Value, Inputs, Level 3
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Acquisition Earnout Accruals	0			0		(5,278,000)
Earnout Payments Fair Value Disclosure				5,051,000
Fair Value Measurement With Unobservable Inputs, Recurring Basis Liability, Foreign Currency Translation				227,000
Goodwill	91,271,000			91,271,000		126,831,000
Restructuring Charges				(32,970,000)
Fair Value Measurement with Unobservable Inputs, Goodwill, Foreign Currency Translation				(2,590,000)
Fair Value, Inputs, Level 3 \| Goodwill
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Goodwill	91,271,000			91,271,000
Cash [Member]
Fair Value Disclosures [Abstract]
Cash and Cash Equivalents, at Carrying Value	174,908,000			174,908,000		177,493,000
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and Cash Equivalents, at Carrying Value	174,908,000			174,908,000		177,493,000
Marketable Securities	0			0		0
Marketable Securities	0			0		0
US Treasury Securities [Member] \| Fair Value, Inputs, Level 1 [Member]
Fair Value Disclosures [Abstract]
Cash and Cash Equivalents, at Carrying Value	0			0		78,565,000
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and Cash Equivalents, at Carrying Value	0			0		78,565,000
Debt Securities, Available-for-sale, Amortized Cost	69,057,000			69,057,000		139,705,000
Marketable Securities	69,055,000			69,055,000		61,153,000
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Gain, before Tax	0			0		13,000
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Loss, before Tax	2,000			2,000		0
Debt Securities, Available-for-sale	69,055,000			69,055,000		139,718,000
Marketable Securities	69,055,000			69,055,000		61,153,000
Debt Securities, Available-for-sale, Amortized Cost	69,057,000			69,057,000		139,705,000
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Gain, before Tax	0			0		13,000
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Loss, before Tax	2,000			2,000		0
Debt Securities, Available-for-sale	69,055,000			69,055,000		139,718,000
Money Market Funds \| Fair Value, Inputs, Level 1 [Member]
Fair Value Disclosures [Abstract]
Cash and Cash Equivalents, at Carrying Value	43,852,000			43,852,000		15,661,000
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and Cash Equivalents, at Carrying Value	$ 43,852,000			$ 43,852,000		15,661,000
Debt Securities, Available-for-sale, Amortized Cost
Marketable Securities						0
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Gain, before Tax
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Loss, before Tax
Debt Securities, Available-for-sale
Marketable Securities						0
Debt Securities, Available-for-sale, Amortized Cost
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Gain, before Tax
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Loss, before Tax
Debt Securities, Available-for-sale

Subsequent Events (Details)	Jun. 30, 2020 USD ($)
Maximum [Member]
Subsequent Event [Line Items]
Restructuring and Related Cost, Expected Cost	$ 40,000,000
Restructuring and Related Cost, Expected Cost Savings	40,000,000
Minimum [Member]
Subsequent Event [Line Items]
Restructuring and Related Cost, Expected Cost	30,000,000
Restructuring and Related Cost, Expected Cost Savings	$ 30,000,000

Comprehensive Text Block List (Details) - USD ($)	6 Months Ended
Comprehensive Text Block List (Details) - USD ($)	Jun. 30, 2019	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2019	Mar. 31, 2019	Dec. 31, 2018
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated Other Comprehensive Income (Loss), Net of Tax		$ 1,579,000		$ 3,824,000
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest	$ 288,449,000	286,203,000	$ 311,765,000	309,115,000	$ 273,419,000	$ 267,156,000
AOCI, Accumulated Gain (Loss), Debt Securities, Available-for-sale, Including Noncontrolling Interest
Accumulated Other Comprehensive Income (Loss) [Line Items]
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest	(2,000)			13,000
Reclassification from AOCI, Current Period, Net of Tax, Attributable to Parent	(15,000)
Accumulated Foreign Currency Adjustment Including Portion Attributable to Noncontrolling Interest
Accumulated Other Comprehensive Income (Loss) [Line Items]
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest	3,872,000			6,102,000
Reclassification from AOCI, Current Period, Net of Tax, Attributable to Parent	(2,230,000)
Accumulated Defined Benefit Plans Adjustment Including Portion Attributable to Noncontrolling Interest
Accumulated Other Comprehensive Income (Loss) [Line Items]
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest	(2,291,000)			(2,291,000)
Reclassification from AOCI, Current Period, Net of Tax, Attributable to Parent	0
AOCI Attributable to Parent
Accumulated Other Comprehensive Income (Loss) [Line Items]
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest	4,387,000	$ 1,579,000	$ 78,000	$ 3,824,000	$ 4,382,000	$ 4,062,000
Reclassification from AOCI, Current Period, Net of Tax, Attributable to Parent	$ (2,245,000)

- Definition

Accumulated change in equity from transactions and other events and circumstances from non-owner sources, net of tax effect, at period end. Excludes Net Income (Loss), and accumulated changes in equity from transactions resulting from investments by owners and distributions to owners. Includes foreign currency translation items, certain pension adjustments, unrealized gains and losses on certain investments in debt and equity securities, other than temporary impairment (OTTI) losses related to factors other than credit losses on available-for-sale and held-to-maturity debt securities that an entity does not intend to sell and it is not more likely than not that the entity will be required to sell before recovery of the amortized cost basis, as well as changes in the fair value of derivatives related to the effective portion of a designated cash flow hedge.

+ References + Details

- Definition

Amount of stockholders' equity (deficit), net of receivables from officers, directors, owners, and affiliates of the entity, attributable to both the parent and noncontrolling interests. Amount excludes temporary equity. Alternate caption for the concept is permanent equity.

+ References

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+ Details

Income Taxes (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
Income Taxes (Details) - USD ($) $ in Thousands	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Income Tax Disclosure [Abstract]
Effective Income Tax Rate Reconciliation, Percent	(21.10%)	26.70%	(149.00%)	31.20%
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest	$ (21,249)	$ 19,473	$ (6,853)	$ 38,315
Income Tax Expense (Benefit)	$ 4,484	$ 5,193	$ 10,214	$ 11,948

- Definition

Amount of income (loss) from continuing operations, including income (loss) from equity method investments, before deduction of income tax expense (benefit), and income (loss) attributable to noncontrolling interest.

+ References

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+ Details

- Definition

Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

+ References + Details

Restructuring and Related Activities (Details) - USD ($)	3 Months Ended				6 Months Ended
	Jun. 30, 2020	Sep. 30, 2019	Jun. 30, 2019	Sep. 30, 2018	Jun. 30, 2020	Jun. 30, 2019	Dec. 31, 2019
Restructuring Cost and Reserve [Line Items]
Restructuring Charges	$ 32,970,000	$ 4,100,000	$ 0		$ 32,970,000	$ 0
Maximum [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Cost	40,000,000				40,000,000
Minimum [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Cost	$ 30,000,000				$ 30,000,000
Americas
Restructuring Cost and Reserve [Line Items]
Restructuring Charges		$ 4,100,000
Corporate, Non-Segment
Restructuring Cost and Reserve [Line Items]
Restructuring Charges				$ 100,000
Employee Severance
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve			1,061,000			1,061,000	$ 3,245,000
Payments for Restructuring						(1,230,000)
Restructuring Reserve, Settled without Cash			$ (176,000)
Restructuring Reserve, Foreign Currency Translation Gain (Loss)						$ (778,000)

Compensation Related Costs, Share Based Payments (Details) - USD ($)		3 Months Ended		6 Months Ended
	May 28, 2020	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019	Dec. 31, 2019
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Shares Issued in Period				2,879,025
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant		1,168,741		1,168,741
Share-based Compensation Arrangement by Share-based Payment Award, Options, Nonvested Options Forfeited, Number of Shares				697,766
Share-based Payment Arrangement, Expense, Tax Benefit		$ 385,000	$ 908,000	$ 864,000	$ 1,349,000
Share-based Compensation Arrangement by Share-based Payment Award, Number of Additional Shares Authorized	500,000
Labor and Related Expenses
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Payment Arrangement, Expensed and Capitalized, Amount		991,000	2,976,000	2,795,000	4,647,000
General and Administrative Expense
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Payment Arrangement, Expensed and Capitalized, Amount		460,000	460,000	460,000	460,000
Restricted Stock Units (RSUs)
Share-based Payment Arrangement [Abstract]
Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount		9,100,000		$ 9,100,000
Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition				2 years 4 months 24 days
Share-based Payment Arrangement, Expense		100,000	100,000	$ (700,000)	400,000
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Payment Arrangement, Expense		100,000	$ 100,000	(700,000)	$ 400,000
Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount		9,100,000		$ 9,100,000
Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition				2 years 4 months 24 days
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number			617,996		617,996	598,988
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value			$ 30.34		$ 30.34	$ 32.25
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period				206,737
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period				(173,086)
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeited in Period				(14,643)
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value				$ 23.39
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period, Weighted Average Grant Date Fair Value				28.33
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeitures, Weighted Average Grant Date Fair Value				$ 34.32
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number			617,996		617,996	598,988
Performance Shares
Share-based Payment Arrangement [Abstract]
Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount		4,300,000		$ 4,300,000
Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition				2 years 2 months 12 days
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount		4,300,000		$ 4,300,000
Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition				2 years 2 months 12 days
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number			234,934		234,934	179,559
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value			$ 29.80		$ 29.80	$ 32.63
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period				105,847
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period				(50,472)
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeited in Period				0
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value				$ 23.52
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period, Weighted Average Grant Date Fair Value				26.69
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeitures, Weighted Average Grant Date Fair Value				$ 0
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number			234,934		234,934	179,559
Performance Shares \| Executive Officer
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period				3 years
Performance Shares \| Executive Officer \| Minimum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage				0.00%
Performance Shares \| Executive Officer \| Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage				200.00%
Phantom Share Units (PSUs) [Member]
Share-based Payment Arrangement [Abstract]
Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount		2,200,000		$ 2,200,000
Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition				2 years 9 months 18 days
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount		$ 2,200,000		$ 2,200,000
Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition				2 years 9 months 18 days
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number			254,384		254,384	266,060
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period				0
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period				0
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeited in Period				(11,676)
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number			254,384		254,384	266,060

Deferred Costs, Capitalized, Prepaid, and Other Assets (Details) - USD ($)	Jun. 30, 2020	Dec. 31, 2019
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]
Unbilled Receivables, Current	$ 23,640,000	$ 22,257,000
Other Assets, Miscellaneous, Current	4,171,000	5,591,000
Other Assets, Current	$ 27,811,000	$ 27,848,000

Debt (Details) - USD ($)	3 Months Ended	6 Months Ended
Debt (Details) - USD ($)	Mar. 31, 2020	Jun. 30, 2020	Jun. 30, 2019	Dec. 31, 2019
Debt Disclosure [Abstract]
Line of Credit Facility, Maximum Borrowing Capacity		$ 175,000,000
Payments of Debt Issuance Costs		1,000,000.0
Proceeds from Lines of Credit	$ 100,000,000.0	100,000,000	$ 0
Long-term Line of Credit		$ 100,000,000.0		$ 0
Debt Instrument, Interest Rate During Period		144.00%
Sub Limit for Letters of Credit		$ 25,000,000
Line of Credit Facility Expansion Borrowing Capacity		75,000,000
Swingline Loan Sub Limit		$ 10,000,000

- Definition

The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

+ References + Details

Goodwill and Other Intangible Assets - Goodwill (Details) - USD ($)	3 Months Ended	6 Months Ended
	Jun. 30, 2020	Jun. 30, 2020	Dec. 31, 2019	Jun. 30, 2019
Goodwill [Line Items]
Goodwill	$ 91,271,000	$ 91,271,000	$ 126,831,000
Goodwill, Foreign Currency Translation Gain (Loss)		(2,590,000)
Goodwill, Impairment Loss		(32,970,000)
Goodwill, Gross			126,831,000	$ 124,241,000
Goodwill, Impaired, Accumulated Impairment Loss			0	(32,970,000)
Europe
Goodwill [Line Items]
Goodwill, Impairment Loss	(24,500,000)	(24,500,000)
Asia Pacific
Goodwill [Line Items]
Goodwill, Impairment Loss	(8,500,000)	(8,500,000)
Executive Search Member \| Americas
Goodwill [Line Items]
Goodwill	91,271,000	91,271,000	92,497,000
Goodwill, Foreign Currency Translation Gain (Loss)		(1,226,000)
Goodwill, Impairment Loss		0
Goodwill, Gross			92,497,000	91,271,000
Goodwill, Impaired, Accumulated Impairment Loss			0	0
Executive Search Member \| Europe
Goodwill [Line Items]
Goodwill	0	0	25,579,000
Goodwill, Foreign Currency Translation Gain (Loss)		(1,104,000)
Goodwill, Impairment Loss		(24,475,000)
Goodwill, Gross			25,579,000	24,475,000
Goodwill, Impaired, Accumulated Impairment Loss			0	(24,475,000)
Executive Search Member \| Asia Pacific
Goodwill [Line Items]
Goodwill	$ 0	0	8,755,000
Goodwill, Foreign Currency Translation Gain (Loss)		(260,000)
Goodwill, Impairment Loss		$ (8,495,000)
Goodwill, Gross			8,755,000	8,495,000
Goodwill, Impaired, Accumulated Impairment Loss			$ 0	$ (8,495,000)

Goodwill and Other Intangible Assets - Other Intangible Assets, net (Details) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019	Dec. 31, 2019
Goodwill and Intangible Assets Disclosure [Abstract]
Finite-Lived Intangible Asset, Expected Amortization, Remainder of Fiscal Year	$ 322,000		$ 322,000
Finite-Lived Intangible Asset, Expected Amortization, Year Two	457,000		457,000
Finite-Lived Intangible Asset, Expected Amortization, Year Three	292,000		292,000
Finite-Lived Intangible Asset, Expected Amortization, Year Four	174,000		174,000
Finite-Lived Intangible Asset, Expected Amortization, Year Five	71,000		71,000
Finite-Lived Intangible Asset, Expected Amortization, after Year Five	45,000		45,000
Finite-Lived Intangible Assets, Net	$ 1,361,000		1,361,000		$ 1,935,000
Finite-Lived Intangible Assets [Line Items]
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life	6 years 4 months 24 days
Finite-Lived Intangible Assets, Gross	$ 16,226,000		16,226,000		16,664,000
Finite-Lived Intangible Assets, Accumulated Amortization	(14,865,000)		(14,865,000)		(14,729,000)
Finite-Lived Intangible Assets, Net	1,361,000		1,361,000		1,935,000
Amortization of Intangible Assets	200,000	$ 200,000	400,000	$ 500,000
Executive Search Member
Goodwill and Intangible Assets Disclosure [Abstract]
Finite-Lived Intangible Assets, Net	1,361,000		1,361,000		1,935,000
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Net	1,361,000		1,361,000		1,935,000
Executive Search Member \| Americas
Goodwill and Intangible Assets Disclosure [Abstract]
Finite-Lived Intangible Assets, Net	300,000		300,000		557,000
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Net	300,000		300,000		557,000
Executive Search Member \| Asia Pacific
Goodwill and Intangible Assets Disclosure [Abstract]
Finite-Lived Intangible Assets, Net	55,000		55,000		64,000
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Net	55,000		55,000		64,000
Executive Search Member \| Europe
Goodwill and Intangible Assets Disclosure [Abstract]
Finite-Lived Intangible Assets, Net	1,006,000		1,006,000		1,314,000
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Net	1,006,000		1,006,000		1,314,000
Customer Relationships [Member]
Goodwill and Intangible Assets Disclosure [Abstract]
Finite-Lived Intangible Assets, Net	$ 1,198,000		1,198,000		1,619,000
Finite-Lived Intangible Assets [Line Items]
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life	6 years 7 months 6 days
Finite-Lived Intangible Assets, Gross	$ 15,960,000		15,960,000		16,302,000
Finite-Lived Intangible Assets, Accumulated Amortization	(14,762,000)		(14,762,000)		(14,683,000)
Finite-Lived Intangible Assets, Net	1,198,000		1,198,000		1,619,000
Trade Names [Member]
Goodwill and Intangible Assets Disclosure [Abstract]
Finite-Lived Intangible Assets, Net	$ 163,000		163,000		316,000
Finite-Lived Intangible Assets [Line Items]
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life	5 years
Finite-Lived Intangible Assets, Gross	$ 266,000		266,000		362,000
Finite-Lived Intangible Assets, Accumulated Amortization	(103,000)		(103,000)		(46,000)
Finite-Lived Intangible Assets, Net	$ 163,000		$ 163,000		$ 316,000

Subsequent Events (Details)	Jun. 30, 2020 USD ($)
Minimum [Member]
Subsequent Event [Line Items]
Restructuring and Related Cost, Expected Cost	$ 30,000,000
Restructuring and Related Cost, Expected Cost Savings	30,000,000
Maximum [Member]
Subsequent Event [Line Items]
Restructuring and Related Cost, Expected Cost	40,000,000
Restructuring and Related Cost, Expected Cost Savings	$ 40,000,000