Huron Consulting (HURN) 10-Q 31 Jul 20 2020 Q2 Quarterly report Financial data

Document and Entity Information

Document and Entity Information - shares	6 Months Ended
	Jun. 30, 2020	Jul. 24, 2020
Document And Entity Information [Abstract]
Entity Incorporation, State or Country Code	DE
Title of 12(b) Security	Common Stock, par value $0.01 per share
Document Transition Report	false
Document Quarterly Report	true
Entity Registrant Name	HURON CONSULTING GROUP INC.
Entity Address, Address Line One	550 West Van Buren Street
Entity Address, City or Town	Chicago
Entity Address, State or Province	IL
Entity Address, Postal Zip Code	60607
Trading Symbol	HURN
Entity Central Index Key	0001289848
Current Fiscal Year End Date	--12-31
Entity Filer Category	Large Accelerated Filer
Document Type	10-Q
Document Period End Date	Jun. 30, 2020
Document Fiscal Year Focus	2020
Document Fiscal Period Focus	Q2
Amendment Flag	false
Entity Common Stock, Shares Outstanding		22,873,628
Entity File Number	000-50976
City Area Code	(312)
Local Phone Number	583-8700
Security Exchange Name	NASDAQ
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Shell Company	false
Entity Tax Identification Number	01-0666114
Entity Small Business	false
Entity Emerging Growth Company	false

Consolidated Balance Sheets (Un

Consolidated Balance Sheets (Unaudited) - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019
Current assets:
Cash and cash equivalents	$ 83,212	$ 11,604
Receivables from clients, net of allowances of $8,906 and $8,907, respectively	117,632	116,571
Unbilled Receivables, Current	82,932	79,937
Income tax receivable	323	2,376
Prepaid Expense and Other Assets, Current	13,863	14,248
Total current assets	297,962	224,736
Property and equipment, net	37,082	38,413
Deferred Income Tax Assets, Net	12,426	1,145
Long-term investments	59,524	54,541
Operating Lease, Right-of-Use Asset	52,298	54,954
Other non-current assets	55,083	52,177
Intangible assets, net	24,916	31,625
Goodwill	586,235	646,680
Total assets	1,125,526	1,104,271
Current liabilities:
Accounts payable	5,046	7,944
Accrued expenses and other current liabilities	23,532	18,554
Accrued payroll and related benefits	80,066	141,605
Long-term Debt, Current Maturities	536	529
Operating Lease, Liability, Current	8,559	7,469
Deferred revenues	35,044	28,443
Total current liabilities	152,783	204,544
Non-current liabilities:
Deferred compensation and other liabilities	38,557	28,635
Long-term debt, net of current portion	331,054	208,324
Operating Lease, Liability, Noncurrent	66,547	69,233
Deferred Income Tax Liabilities, Net	571	8,070
Total non-current liabilities	436,729	314,262
Commitments and contingencies
Stockholders’ equity
Common stock	246	247
Treasury stock	(128,646)	(128,348)
Additional paid-in capital	450,391	460,781
Retained earnings	209,088	237,849
Accumulated other comprehensive income	4,935	14,936
Total stockholders’ equity	536,014	585,465
Total liabilities and stockholders’ equity	$ 1,125,526	$ 1,104,271

Consolidated Balance Sheets (_2

Consolidated Balance Sheets (Unaudited) (Parenthetical) - USD ($) $ in Millions	Jun. 30, 2020	Dec. 31, 2019
Statement of Financial Position [Abstract]
Common stock, par value (USD per share)	$ 0.01	$ 0.01
Common stock, shares authorized (shares)	500,000,000	500,000,000
Common stock, shares issued (shares)	25,421,974	25,144,764
Treasury stock, shares (shares)	2,556,012	2,425,430
Accounts Receivable, Allowance for Credit Loss, Current	$ 8,906	$ 8,907
Unbilled Services, Allowance for Credit Losses	$ 3,640	$ 2,994

Consolidated Statements of Earn

Consolidated Statements of Earnings and Other Comprehensive Income (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Revenues and reimbursable expenses:
Revenue from Contract with Customer, Including Assessed Tax	$ 217,857	$ 220,754	$ 440,476	$ 425,199
Reimbursable Revenues	2,970	23,534	22,273	42,151
Total revenues and reimbursable expenses	220,827	244,288	462,749	467,350
Direct costs and reimbursable expenses (exclusive of depreciation and amortization shown in operating expenses):
Cost of Goods and Service, Excluding Depreciation, Depletion, and Amortization	149,514	141,628	305,762	279,408
Cost, Depreciation and Amortization	1,334	1,171	2,635	2,288
Reimbursable Expense	2,866	23,657	22,255	42,326
Total direct costs and reimbursable expenses	153,714	166,456	330,652	324,022
Operating expenses and other losses (gains), net
Selling, general and administrative expenses	44,857	52,537	88,303	103,286
Restructuring charges	109	754	1,718	2,029
Gain (Loss) Related To Litigation Settlement And Other Operating Gains	0	485	150	941
Depreciation and amortization	6,193	7,151	12,307	14,323
Goodwill, Impairment Loss	0	0	59,816	0
Total operating expenses and other losses (gains), net	51,159	59,957	161,994	118,697
Operating income (loss)	15,954	17,875	(29,897)	24,631
Other income (expense), net:
Interest expense, net of interest income	(2,916)	(4,524)	(5,257)	(8,782)
Other income (expense), net	3,948	695	(1,348)	2,912
Total other income (expense), net	1,032	(3,829)	(6,605)	(5,870)
Income (loss) from continuing operations before taxes	16,986	14,046	(36,502)	18,761
Income tax expense (benefit)	3,414	3,477	(7,801)	4,842
Income (Loss) from Continuing Operations, Net of Tax, Attributable to Parent	13,572	10,569	(28,701)	13,919
Income (Loss) from Discontinued Operations, Net of Tax, Attributable to Parent	(25)	(97)	(60)	(143)
Net income (loss)	$ 13,547	$ 10,472	$ (28,761)	$ 13,776
Net income (loss) from continuing operations
Income (Loss) from Continuing Operations, Per Basic Share	$ 0.62	$ 0.48	$ (1.31)	$ 0.63
Discontinued Operation, Income (Loss) from Discontinued Operation, Net of Tax, Per Basic Share	0	0	(0.01)	0
Basic (USD per share)	0.62	0.48	(1.32)	0.63
Net earnings per diluted share:
Income (Loss) from Continuing Operations, Per Diluted Share	0.61	0.47	(1.31)	0.62
Discontinued Operation, Income (Loss) from Discontinued Operation, Net of Tax, Per Diluted Share	0	0	(0.01)	0
Earnings Per Share, Diluted	$ 0.61	$ 0.47	$ (1.32)	$ 0.62
Weighted average shares used in calculating earnings (loss) per share:
Weighted average common shares outstanding – basic	21,869	21,997	21,848	21,933
Weighted average common shares outstanding – diluted	22,116	22,400	21,848	22,356
Net income (loss)
Net income (loss)	$ 13,547	$ 10,472	$ (28,761)	$ 13,776
Foreign currency translation adjustments, net of tax	104	(359)	(675)	(43)
Unrealized gain (loss) on investment, net of tax	(5,678)	3,915	(5,936)	6,572
Unrealized loss on cash flow hedging instruments, net of tax	(1,705)	(612)	(3,390)	(849)
Other comprehensive income (loss)	(7,279)	2,944	(10,001)	5,680
Comprehensive income (loss)	$ 6,268	$ 13,416	$ (38,762)	$ 19,456

Consolidated Statement of Stock

Consolidated Statement of Stockholders' Equity (Unaudited) - USD ($) $ in Thousands	Total	Common Stock	Treasury Stock	Additional Paid-In Capital	Retained Earnings	Accumulated Other Comprehensive Income (Loss)
Beginning Balance, shares at Dec. 31, 2018		(24,418,252)	(2,671,962)
Beginning Balance at Dec. 31, 2018	$ 540,624	$ 244	$ (124,794)	$ 452,573	$ 196,106	$ 16,495
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Comprehensive income (loss)	19,456				13,776	5,680
Issuance of common stock in connection with:
Restricted stock awards, net of cancellations, shares		272,941	25,174
Restricted stock awards, net of cancellations	0	$ 3	$ 2,121	(2,124)
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period		20,000
Stock Issued During Period, Value, Stock Options Exercised	468	$ 0		468
Share-based compensation	12,273			12,273
Shares redeemed for employee tax withholdings, shares			(96,038)
Shares redeemed for employee tax withholdings	(4,460)		$ 4,460
Ending Balance, shares at Jun. 30, 2019		(24,711,193)	(2,742,826)
Ending Balance at Jun. 30, 2019	568,361	$ 247	$ (127,133)	463,190	209,882	22,175
Beginning Balance, shares at Mar. 31, 2019		(24,682,802)	(2,738,850)
Beginning Balance at Mar. 31, 2019	549,653	$ 247	$ (126,983)	457,748	199,410	19,231
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Comprehensive income (loss)	13,416				10,472	2,944
Issuance of common stock in connection with:
Restricted stock awards, net of cancellations, shares		18,391	(2,438)
Restricted stock awards, net of cancellations	0	$ 0	$ (75)	75
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period		10,000
Stock Issued During Period, Value, Stock Options Exercised	234	$ 0		234
Share-based compensation	5,133			5,133
Shares redeemed for employee tax withholdings, shares			(1,538)
Shares redeemed for employee tax withholdings	(75)		$ 75
Ending Balance, shares at Jun. 30, 2019		(24,711,193)	(2,742,826)
Ending Balance at Jun. 30, 2019	568,361	$ 247	$ (127,133)	463,190	209,882	22,175
Beginning Balance, shares at Dec. 31, 2019		(24,603,308)	(2,763,302)
Beginning Balance at Dec. 31, 2019	$ 585,465	$ 247	$ (128,348)	460,781	237,849	14,936
Issuance of common stock in connection with:
Stock Repurchased and Retired During Period, Shares	(313,998)
Stock Repurchased and Retired During Period, Value	$ (20,900)
Ending Balance, shares at Mar. 31, 2020		(24,559,854)	(2,780,835)
Ending Balance at Mar. 31, 2020	524,609	$ 246	$ (128,366)	444,974	195,541	12,214
Beginning Balance, shares at Dec. 31, 2019		(24,603,308)	(2,763,302)
Beginning Balance at Dec. 31, 2019	585,465	$ 247	$ (128,348)	460,781	237,849	14,936
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Comprehensive income (loss)	(38,762)				(28,761)	(10,001)
Issuance of common stock in connection with:
Restricted stock awards, net of cancellations, shares		270,126	98,310
Restricted stock awards, net of cancellations	0	$ 2	$ 6,919	(6,921)
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period		26,800
Stock Issued During Period, Value, Stock Options Exercised	646	$ 0		646
Share-based compensation	16,763			16,763
Shares redeemed for employee tax withholdings, shares			(121,806)
Shares redeemed for employee tax withholdings	(7,217)		$ 7,217
Stock Repurchased and Retired During Period, Shares		(313,998)
Stock Repurchased and Retired During Period, Value	(20,881)	$ (3)		(20,878)
Ending Balance, shares at Jun. 30, 2020		(24,586,236)	(2,786,798)
Ending Balance at Jun. 30, 2020	536,014	$ 246	$ (128,646)	450,391	209,088	4,935
Beginning Balance, shares at Mar. 31, 2020		(24,559,854)	(2,780,835)
Beginning Balance at Mar. 31, 2020	524,609	$ 246	$ (128,366)	444,974	195,541	12,214
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Comprehensive income (loss)	6,268				13,547	(7,279)
Issuance of common stock in connection with:
Restricted stock awards, net of cancellations, shares		19,582	(4,157)
Restricted stock awards, net of cancellations	0	$ 0	$ (196)	196
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period		6,800
Stock Issued During Period, Value, Stock Options Exercised	178	$ 0		178
Share-based compensation	5,043			5,043
Shares redeemed for employee tax withholdings, shares			(1,806)
Shares redeemed for employee tax withholdings	(84)		$ 84
Ending Balance, shares at Jun. 30, 2020		(24,586,236)	(2,786,798)
Ending Balance at Jun. 30, 2020	$ 536,014	$ 246	$ (128,646)	$ 450,391	$ 209,088	$ 4,935

Consolidated Statements of Cash

Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019
Cash flows from operating activities:
Net income	$ (28,761)	$ 13,776
Adjustments to reconcile net income (loss) to cash flows from operating activities:
Depreciation and amortization	14,942	17,285
Noncash Operating Lease Expense	3,880	4,397
Operating Lease, Impairment Loss	0	805
Share-based compensation	14,527	11,483
Amortization of debt discount and issuance costs	397	5,264
Goodwill, Impairment Loss	59,816	0
Allowances For Doubtful Accounts And Unbilled Services	512	170
Deferred Income Taxes and Tax Credits	(15,515)	0
Gain (Loss) on Disposition of Business	(102)	0
Business Combination, Contingent Consideration Arrangements, Change in Amount of Contingent Consideration, Liability	0	(876)
Changes in operating assets and liabilities, net of divestiture:
(Increase) decrease in receivables from clients, net	(339)	(6,984)
Increase (Decrease) in Other Receivables	3,059	22,105
(Increase) decrease in current income tax receivable / payable, net	6,546	6,486
(Increase) decrease in other assets	(1,674)	(4,743)
Increase (decrease) in accounts payable and other liabilities	(2,787)	(133)
Increase (decrease) in accrued payroll and related benefits	(53,420)	(30,462)
Increase (decrease) in deferred revenues	6,638	(570)
Net cash provided by (used in) operating activities	1,805	(6,207)
Cash flows from investing activities:
Purchases of property and equipment, net	(4,417)	(6,384)
Payments to Acquire Investments	13,000	0
Investment in life insurance policies	(1,540)	(4,087)
Capitalization of internally developed software costs	(5,184)	(4,409)
Net cash used in investing activities	(24,141)	(14,880)
Cash flows from financing activities:
Proceeds from exercises of stock options	646	469
Shares redeemed for employee tax withholdings	(7,217)	(4,460)
Payments for Repurchase of Common Stock	(22,115)	0
Proceeds from bank borrowings	283,000	87,500
Repayments of bank borrowings	(160,263)	(81,756)
Payment for Contingent Consideration Liability, Financing Activities	0	4,674
Net Cash Provided by (Used in) Financing Activities	94,051	(2,921)
Effect of exchange rate changes on cash	(107)	78
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Including Exchange Rate Effect	71,608	(23,930)
Cash and cash equivalents at beginning of the period	11,604	33,107
Cash and cash equivalents at end of the period	83,212	9,177
Non-cash investing and financing activities:
Property and equipment expenditures and capitalized software included in accounts payable and accrued expenses	2,070	3,842
Right-of-Use Asset Obtained in Exchange for Operating Lease Liability	$ 1,397	$ 3,611

Description of Business

Description of Business	6 Months Ended
	Jun. 30, 2020
Accounting Policies [Abstract]
Description of Business	Description of Business Huron is a global consultancy that collaborates with clients to drive strategic growth, ignite innovation and navigate constant change. Through a combination of strategy, expertise and creativity, we help clients accelerate operational, digital and cultural transformation, enabling the change they need to own their future. By embracing diverse perspectives, encouraging new ideas and challenging the status quo, we create sustainable results for the organizations we serve.

Basis of Presentation

Basis of Presentation	6 Months Ended
	Jun. 30, 2020
Accounting Policies [Abstract]
Basis of Presentation	Basis of Presentation and Significant Accounting Policies The accompanying unaudited consolidated financial statements reflect the financial position, results of operations, and cash flows as of and for the three and six months ended June 30, 2020 and 2019 . These financial statements have been prepared in accordance with the rules and regulations of the U.S. Securities and Exchange Commission ("SEC") for Quarterly Reports on Form 10-Q. Accordingly, these financial statements do not include all of the information and note disclosures required by accounting principles generally accepted in the United States of America ("GAAP") for annual financial statements. In the opinion of management, these financial statements reflect all adjustments of a normal, recurring nature necessary for the fair statement of our financial position, results of operations, and cash flows for the interim periods presented in conformity with GAAP. These financial statements should be read in conjunction with our consolidated financial statements and notes thereto for the year ended December 31, 2019 included in our Annual Report on Form 10-K and our Quarterly Report on Form 10-Q for the period ended March 31, 2020. Our results for any interim period are not necessarily indicative of results for a full year or any other interim period. Preparation of our consolidated financial statements requires management to make estimates and assumptions that affect the amounts reported in our consolidated financial statements and related disclosures. The business and economic uncertainty resulting from the coronavirus (COVID-19) pandemic has made such estimates and assumptions more difficult to predict. Accordingly, actual results and outcomes could differ from those estimates.

New Accounting Pronouncements

New Accounting Pronouncements	6 Months Ended
	Jun. 30, 2020
New Accounting Pronouncements and Changes in Accounting Principles [Abstract]
New Accounting Pronouncements	New Accounting Pronouncements Recently Adopted In June 2016, the Financial Accounting Standards Board ("FASB") issued ASU 2016-13, Financial Instruments - Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments which provides a new current expected credit loss model to account for credit losses on certain financial assets, including trade receivables. That model requires an entity to estimate lifetime credit losses based on relevant historical information, adjusted for current conditions and reasonable and supportable forecasts that could affect the collectability of the reported amount. The ASU also makes targeted amendments to the current impairment model for available-for-sale debt securities, which includes requiring the recognition of an allowance rather than a direct write-down of the investment, which may be reversed in the event that the credit of an issuer improves. We adopted ASU 2016-13 effective January 1, 2020, which did not have a material impact on our consolidated financial statements. In August 2018, the FASB issued ASU 2018-13, Fair Value Measurement (Topic 820): Disclosure Framework - Changes to the Disclosure Requirements for Fair Value Measurement, which modifies certain disclosure requirements related to fair value measurements. We adopted ASU 2018-13 effective January 1, 2020, which had no impact on the amounts reported on our consolidated financial statements. We updated our disclosures within the notes to our consolidated financial statements as required by ASU 2018-13. In December 2019, the FASB issued ASU 2019-12, Income Taxes (Topic 740): Simplifying the Accounting for Income Taxes. ASU 2019-12 simplifies the accounting for income taxes by eliminating certain exceptions to the guidance in ASC 740, Income Taxes , 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 new guidance also simplifies other aspects of the accounting for franchise taxes and enacted changes in tax laws or tax rates and clarifies the accounting for transactions that result in a step-up in the tax basis of goodwill. On January 1, 2020, we elected to early adopt ASU 2019-12 on a modified retrospective basis for those amendments that are not applied on a prospective basis. The adoption of ASU 2019-12 did not have a material impact on our consolidated financial statements.

Goodwill and Intangible Assets

Goodwill and Intangible Assets	6 Months Ended
	Jun. 30, 2020
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill and Intangible Assets	Goodwill and Intangible Assets The table below sets forth the changes in the carrying amount of goodwill by reportable segment for the six months ended June 30, 2020 . Healthcare Business Advisory Education Total Balance as of December 31, 2019: Goodwill $ 636,810 $ 302,057 $ 103,889 $ 1,042,756 Accumulated impairment losses (208,081 ) (187,995 ) — (396,076 ) Goodwill, net as of December 31, 2019 428,729 114,062 103,889 646,680 Goodwill impairment charges — (59,816 ) — (59,816 ) Foreign currency translation — (629 ) — (629 ) Goodwill, net as of June 30, 2020 $ 428,729 $ 53,617 $ 103,889 $ 586,235 First Quarter 2020 Goodwill Impairment Charges The worldwide spread of coronavirus (COVID-19) in the first quarter of 2020 created significant volatility, uncertainty and disruption to the global economy. We are closely monitoring the impact of the COVID-19 pandemic on all aspects of our business, including how we expect it will continue to negatively impact our clients, employees and business partners. While the COVID-19 pandemic did not have a significant impact on our consolidated revenues in the first quarter of 2020, we expected it to have an unfavorable impact on sales, increase uncertainty in the backlog and negatively impact full year 2020 results. The services provided by our Strategy and Innovation and Life Sciences reporting units within our Business Advisory segment focus on strategic solutions for healthy, well-capitalized companies to identify new growth opportunities, which may be considered by our clients to be more discretionary in nature, and the duration of the projects within these practices are typically short-term. Therefore, due to the uncertainty caused by the COVID-19 pandemic, we are cautious about near-term results for these two reporting units. Based on our internal projections and the preparation of our financial statements for the quarter ended March 31, 2020, and considering the expected decrease in demand due to the COVID-19 pandemic, during the first quarter of 2020 we believed that the fair value of these two reporting units no longer exceeded their carrying values and performed an interim impairment test on both reporting units as of March 31, 2020. Based on the estimated fair values of the Strategy and Innovation and Life Sciences reporting units, we recorded non-cash pretax goodwill impairment charges of $49.9 million and $9.9 million , respectively, in the first quarter of 2020. The $49.9 million non-cash pretax charge related to the Strategy and Innovation reporting unit reduced the goodwill balance of the reporting unit to $37.5 million . The $9.9 million non-cash pretax charge related to the Life Sciences reporting unit reduced the goodwill balance of the reporting unit to zero. Our goodwill impairment test was performed by comparing the fair value of each of the Strategy and Innovation and Life Sciences reporting units with its respective carrying value and recognizing an impairment charge for the amount by which the carrying value exceeded the fair value. To estimate the fair value of each reporting unit, we relied on a combination of the income approach and the market approach, with a fifty-fifty weighting. In the income approach, we utilized a discounted cash flow analysis, which involved estimating the expected after-tax cash flows that will be generated by each reporting unit and then discounting those cash flows to present value, reflecting the relevant risks associated with each reporting unit and the time value of money. This approach requires the use of significant estimates and assumptions, including long-term projections of future cash flows, market conditions, and discount rates that reflects the risk inherent in the future cash flows. In estimating future cash flows, we relied on internally generated seven-year forecasts. For periods after the seven-year forecast, we assumed a long-term annual revenue growth rate of 3.0% for both the Strategy and Innovation and Life Sciences reporting units and a long-term EBITDA margin of 24.8% and 6.7% , respectively. Our forecasts are based on historical experience, current backlog, expected market demand, and other industry information. Our discounted cash flow analysis assumed weighted average cost of capital discount rates of 16.0% and 10.5% for the Strategy and Innovation and Life Sciences reporting units, respectively. In the market approach, we utilized the guideline company method, which involved calculating valuation revenue multiples based on operating data from guideline publicly traded companies. Multiples derived from guideline companies provide an indication of how much a knowledgeable investor in the marketplace would be willing to pay for a company. These multiples were evaluated and adjusted based on specific characteristics of the Strategy and Innovation and Life Sciences reporting units relative to the selected guideline companies and applied to the reporting units' operating data to arrive at an indication of value. The range of revenue multiples used in the valuation of the Strategy and Innovation and Life Sciences reporting units was 1.20 x to 1.70 x and 0.30 x to 0.40 x, respectively. Concurrently with the goodwill impairment tests performed over the Strategy and Innovation and Life Sciences reporting units, we evaluated whether any indicators exist that would lead us to believe that the fair values of our Healthcare, Education, and Business Advisory reporting units may not exceed their carrying values. Based on our internal projections, consideration of the impact of the COVID-19 pandemic on these reporting units, and review of the amounts by which the fair values of these reporting units exceeded their carrying values in the most recent quantitative goodwill impairment analysis performed, we did not identify any indicators that would lead us to believe that the fair values of these reporting units may not exceed their carrying values as of March 31, 2020. In connection with the goodwill impairment tests performed on the Strategy and Innovation and Life Sciences reporting units as of March 31, 2020, we performed impairment tests on the long-lived assets allocated to the asset groups of the Strategy and Innovation and Life Sciences reporting units. Based on the impairment tests performed, we concluded that the long-lived assets allocated to the asset groups were not impaired as of March 31, 2020. We did not identify any indicators that would lead us to believe that the carrying values of the long-lived assets allocated to our other asset groups may not be recoverable as of March 31, 2020. In the second quarter of 2020, we did not identify any indicators that would lead us to believe that the fair values of any of our reporting units may not exceed their carrying values, nor did we identify any indicators that would lead us to believe that the carrying values of the long-lived assets allocated to our asset groups may not be recoverable. Intangible Assets Intangible assets as of June 30, 2020 and December 31, 2019 consisted of the following: As of June 30, 2020 As of December 31, 2019 Useful Life (in years) Gross Carrying Amount Accumulated Amortization Gross Carrying Amount Accumulated Amortization Customer relationships 3 to 13 $ 87,072 $ 66,358 $ 87,577 $ 61,882 Trade names 5 to 6 28,930 26,490 28,930 25,894 Technology and software 5 5,440 4,739 5,694 4,321 Non-competition agreements 5 2,220 1,670 2,220 1,447 Customer contracts 2 800 289 800 52 Total $ 124,462 $ 99,546 $ 125,221 $ 93,596 Identifiable intangible assets with finite lives are amortized over their estimated useful lives. Customer relationships and customer contracts, as well as certain trade names and technology and software, are amortized on an accelerated basis to correspond to the cash flows expected to be derived from the assets. All other intangible assets with finite lives are amortized on a straight-line basis. Intangible asset amortization expense was $3.2 million and $4.3 million for the three months ended June 30, 2020 and 2019 , respectively; and $6.4 million and $8.8 million for the six months ended June 30, 2020 and 2019 . The table below sets forth the estimated annual amortization expense for the intangible assets recorded as of June 30, 2020 . Year Ending December 31, Estimated Amortization Expense 2020 $ 12,561 2021 $ 8,358 2022 $ 6,111 2023 $ 3,512 2024 $ 741 Actual future amortization expense could differ from these estimated amounts as a result of future acquisitions, dispositions, and other factors.

Revenues Revenue

Revenues Revenue	6 Months Ended
	Jun. 30, 2020
Revenue from Contract with Customer [Abstract]
Revenue from Contract with Customer [Text Block]	Revenues For the three months ended June 30, 2020 and 2019, we recognized revenues of $217.9 million and $220.8 million , respectively. Of the $217.9 million recognized in the second quarter of 2020 , we recognized revenues of $5.6 million from obligations satisfied, or partially satisfied, in prior periods, of which $4.0 million was primarily due to the release of allowances on unbilled services as a result of securing contract amendments and $1.6 million was due to changes in the estimates of our variable consideration under performance-based billing arrangements. Of the $220.8 million recognized in the second quarter of 2019, we recognized revenues of $3.6 million from obligations satisfied, or partially satisfied, in prior periods, primarily due to the release of allowances on unbilled services due to securing contract amendments. During the second quarter of 2019, we recognized a $0.3 million decrease to revenues due to changes in the estimates of our variable consideration under performance-based billing arrangements. For the six months ended June 30, 2020 and 2019, we recognized revenues of $440.5 million and $425.2 million , respectively. Of the $440.5 million recognized in the first six months of 2020 , we recognized revenues of $10.0 million from obligations satisfied, or partially satisfied, in prior periods, of which $6.2 million was due to changes in the estimates of our variable consideration under performance-based billing arrangements and $3.8 million was primarily due to the release of allowances on unbilled services as a result of securing contract amendments. Of the $425.2 million recognized in the first six months of 2019, we recognized revenues of $2.1 million from obligations satisfied, or partially satisfied, in prior periods, primarily due to the release of allowances on unbilled services due to securing contract amendments. During the first six months of 2019, we recognized a $1.5 million decrease to revenues due to changes in the estimates of our variable consideration under performance-based billing arrangements. As of June 30, 2020 , we had $76.4 million of remaining performance obligations under engagements with original expected durations greater than one year. These remaining performance obligations exclude obligations under contracts with an original expected duration of one year or less, variable consideration which has been excluded from the total transaction price due to the constraint, and performance obligations under time-and-expense engagements which are recognized in the amount invoiced. Of the $76.4 million of performance obligations, we expect to recognize approximately $30.1 million as revenue in 2020 , $29.7 million in 2021 , and the remaining $16.6 million thereafter. Actual revenue recognition could differ from these amounts as a result of changes in the estimated timing of work to be performed, adjustments to estimated variable consideration in performance-based arrangements, or other factors. Contract Assets and Liabilities The payment terms and conditions in our customer contracts vary. Differences between the timing of billings and the recognition of revenue are recognized as either unbilled services or deferred revenues in the consolidated balance sheets. Unbilled services include revenues recognized for services performed but not yet billed to clients. Services performed that we are not yet entitled to bill because certain events, such as the completion of the measurement period or client approval in performance-based engagements, must occur are recorded as contract assets and included within unbilled services, net. The contract asset balance as of June 30, 2020 and December 31, 2019 was $12.7 million and $12.6 million , respectively. The $0.1 million increase primarily reflects timing differences between the completion of our performance obligations and the amounts billed or billable to clients in accordance with their contractual billing terms. Client prepayments and retainers are classified as deferred revenues and recognized over future periods in accordance with the applicable engagement agreement and our revenue recognition policy. Our deferred revenues balance as of June 30, 2020 and December 31, 2019 , was $35.0 million and $28.4 million , respectively. The $6.6 million increase primarily reflects timing differences between client payments in accordance with their contract terms and the completion of our performance obligations. For the three and six months ended June 30, 2020 , $6.8 million and $21.3 million , respectively, of revenues recognized were included in the deferred revenue balance as of December 31, 2019 .

Earnings Per Share

Earnings Per Share	6 Months Ended
	Jun. 30, 2020
Earnings Per Share [Abstract]
Earnings Per Share	Earnings Per Share Basic earnings per share excludes dilution and is computed by dividing net income by the weighted average number of common shares outstanding for the period, excluding unvested restricted common stock. Diluted earnings per share reflects the potential reduction in earnings per share that could occur if securities or other contracts to issue common stock were exercised or converted into common stock under the treasury stock method. Such securities or other contracts include unvested restricted stock awards, outstanding common stock options, convertible senior notes, and outstanding warrants, to the extent dilutive. In periods for which we report a net loss from continuing operations, diluted weighted average common shares outstanding excludes all potential common stock equivalents as their impact on diluted net loss from continuing operations per share would be anti-dilutive. Earnings (loss) per share under the basic and diluted computations are as follows: Three Months Ended Six Months Ended 2020 2019 2020 2019 Net income (loss) from continuing operations $ 13,572 $ 10,569 $ (28,701 ) $ 13,919 Income (loss) from discontinued operations, net of tax (25 ) (97 ) (60 ) (143 ) Net income (loss) $ 13,547 $ 10,472 $ (28,761 ) $ 13,776 Weighted average common shares outstanding – basic 21,869 21,997 21,848 21,933 Weighted average common stock equivalents 247 403 — 423 Weighted average common shares outstanding – diluted 22,116 22,400 21,848 22,356 Net earnings (loss) per basic share: Net income (loss) from continuing operations $ 0.62 $ 0.48 $ (1.31 ) $ 0.63 Income (loss) from discontinued operations, net of tax — — (0.01 ) — Net income (loss) $ 0.62 $ 0.48 $ (1.32 ) $ 0.63 Net earnings (loss) per diluted share: Net income (loss) from continuing operations $ 0.61 $ 0.47 $ (1.31 ) $ 0.62 Income (loss) from discontinued operations, net of tax — — (0.01 ) — Net income (loss) $ 0.61 $ 0.47 $ (1.32 ) $ 0.62 The number of anti-dilutive securities excluded from the computation of the weighted average common stock equivalents presented above were as follows: As of June 30, 2020 2019 Unvested restricted stock awards 58 — Convertible senior notes — 3,129 Warrants related to the issuance of convertible senior notes — 3,129 Total anti-dilutive securities 58 6,258 See Note 7 “Financing Arrangements” for further information on the convertible senior notes and warrants related to the issuance of convertible notes. We currently have a share repurchase program permitting us to repurchase up to $125 million of our common stock through October 31, 2020 (the “Share Repurchase Program”). The amount and timing of the repurchases will be determined by management and will depend on a variety of factors, including the trading price of our common stock, capacity under our credit facility, general market and business conditions, and applicable legal requirements. In the first quarter of 2020, we repurchased and retired 313,998 shares for $20.9 million . The 313,998 shares repurchased and retired in the first quarter of 2020 were reflected as a reduction to our basic weighted average shares outstanding for the quarter ended March 31, 2020 based on the trade date of the share repurchase. Additionally, in the first quarter of 2020, we settled the repurchase of 18,000 shares for $1.2 million that were accrued as of December 31, 2019. These shares were reflected as a reduction to our basic weighted average shares outstanding in the fourth quarter of 2019 based on the trade date of the share repurchase. No shares were repurchased during the second quarter of 2020 nor were any shares repurchased during the first six months of 2019. As of June 30, 2020 , less than $0.1 million

Financing Arrangements

Financing Arrangements	6 Months Ended
	Jun. 30, 2020
Debt Disclosure [Abstract]
Financing Arrangements	Financing Arrangements A summary of the carrying amounts of our debt follows: June 30, 2020 December 31, 2019 Senior secured credit facility $ 328,000 $ 205,000 Promissory note due 2024 3,590 3,853 Total long-term debt $ 331,590 $ 208,853 Current maturities of long-term debt (536 ) (529 ) Long-term debt, net of current portion $ 331,054 $ 208,324 Below is a summary of the scheduled remaining principal payments of our debt as of June 30, 2020 . Principal Payments of Long-Term Debt 2020 $ 266 2021 $ 544 2022 $ 559 2023 $ 575 2024 $ 329,646 Convertible Notes In September 2014, the Company issued $250 million principal amount of 1.25% convertible senior notes due 2019 (the “Convertible Notes”) in a private offering. The Convertible Notes were governed by the terms of an indenture between the Company and U.S. Bank National Association, as Trustee (the “Indenture”). The Convertible Notes were senior unsecured obligations of the Company and paid interest semi-annually on April 1 and October 1 of each year at an annual rate of 1.25% . Prior to maturity, upon conversion, the Convertible Notes would have been settled, at our election, in cash, shares of the Company’s common stock, or a combination of cash and shares of the Company’s common stock. Our intent and policy was to settle conversions with a combination of cash and shares of common stock with the principal amount of the Convertible Notes paid in cash, in accordance with the settlement provisions of the Indenture. Upon issuance, we separated the Convertible Notes into liability and equity components. The carrying value of the equity component representing the conversion option, which was recognized as a debt discount, was determined by deducting the fair value of the liability component from the proceeds of the Convertible Notes. The debt discount was amortized to interest expense using an effective interest rate of 4.751% over the term of the Convertible Notes. The equity component was not remeasured as it continued to meet the conditions for equity classification. The transaction costs related to the issuance of the Convertible Notes were separated into liability and equity components based on their relative values. Transaction costs attributable to the liability component were recorded as a deduction to the carrying amount of the liability and amortized to interest expense over the term of the Convertible Notes; and transaction costs attributable to the equity component were netted with the equity component of the Convertible Notes in stockholders’ equity. The following table presents the amount of interest expense recognized related to the Convertible Notes for the periods presented. Three Months Ended Six Months Ended Contractual interest coupon $ 781 $ 1,563 Amortization of debt discount 2,145 4,265 Amortization of debt issuance costs 315 630 Total interest expense $ 3,241 $ 6,458 In connection with the issuance of the Convertible Notes, we entered into convertible note hedge transactions and warrant transactions. The convertible note hedge transactions were intended to reduce the potential future economic dilution associated with the conversion of the Convertible Notes and, combined with the warrants, effectively raised the price at which economic dilution would occur from the initial conversion price of approximately $79.89 to approximately $97.12 per share. The convertible note hedge transactions expired in the third quarter of 2019. The holders of the warrants have the option to purchase an initial total of approximately 3.1 million shares of the Company’s common stock at a strike price of approximately $97.12 . The warrants expired on May 28, 2020. If the average market value per share of our common stock for the reporting period exceeded the strike price of the warrants, the warrants would have had a dilutive effect on our earnings per share. The warrants were separate transactions and were not part of the terms of the Convertible Notes or the convertible note hedge transactions. Senior Secured Credit Facility The Company has a $600 million senior secured revolving credit facility, subject to the terms of a Second Amended and Restated Credit Agreement dated as of March 31, 2015, as amended to date (as amended and modified the "Amended Credit Agreement"), that becomes due and payable in full upon maturity on September 27, 2024 . The Amended Credit Agreement provides the option to increase the revolving credit facility or establish term loan facilities in an aggregate amount of up to $150 million , subject to customary conditions and the approval of any lender whose commitment would be increased, resulting in a maximum available principal amount under the Amended Credit Agreement of $750 million . The initial borrowings under the Amended Credit Agreement were used to refinance borrowings outstanding under a prior credit agreement, and future borrowings under the Amended Credit Agreement may be used for working capital, capital expenditures, acquisitions of businesses, share repurchases, and general corporate purposes. Fees and interest on borrowings vary based on our Consolidated Leverage Ratio (as defined in the Amended Credit Agreement). At our option, borrowings under the Amended Credit Agreement will bear interest at one, two, three or six-month LIBOR or an alternate base rate, in each case plus the applicable margin. The applicable margin will fluctuate between 1.125% per annum and 1.875% per annum, in the case of LIBOR borrowings, or between 0.125% per annum and 0.875% per annum, in the case of base rate loans, based upon our Consolidated Leverage Ratio at such time. Amounts borrowed under the Amended Credit Agreement may be prepaid at any time without premium or penalty. We are required to prepay the amounts outstanding under the Amended Credit Agreement in certain circumstances, including upon an Event of Default (as defined in the Amended Credit Agreement). In addition, we have the right to permanently reduce or terminate the unused portion of the commitments provided under the Amended Credit Agreement at any time. The loans and obligations under the Amended Credit Agreement are secured pursuant to a Second Amended and Restated Security Agreement and a Second Amended and Restated Pledge Agreement (as amended, the “Pledge Agreement”) with Bank of America, N.A. as collateral agent, pursuant to which the Company and the subsidiary guarantors grant Bank of America, N.A., for the ratable benefit of the lenders under the Amended Credit Agreement, a first-priority lien, subject to permitted liens, on substantially all of the personal property assets of the Company and the subsidiary guarantors, and a pledge of 100% of the stock or other equity interests in all domestic subsidiaries and 65% of the stock or other equity interests in each “material first-tier foreign subsidiary” (as defined in the Pledge Agreement). The Amended Credit Agreement contains usual and customary representations and warranties; affirmative and negative covenants, which include limitations on liens, investments, additional indebtedness, and restricted payments; and two quarterly financial covenants as follows: (i) a maximum Consolidated Leverage Ratio (defined as the ratio of debt to consolidated EBITDA) of 3.75 to 1.00; however the maximum permitted Consolidated Leverage Ratio will increase to 4.00 to 1.00 upon the occurrence of certain transactions, and (ii) a minimum Consolidated Interest Coverage Ratio (defined as the ratio of consolidated EBITDA to interest) of 3.50 to 1.00. Consolidated EBITDA for purposes of the financial covenants is calculated on a continuing operations basis and includes adjustments to add back non-cash goodwill impairment charges, share-based compensation costs, certain non-cash restructuring charges, pro forma historical EBITDA for businesses acquired, and other specified items in accordance with the Amended Credit Agreement. For purposes of the Consolidated Leverage Ratio, total debt is on a gross basis and is not netted against our cash balances. At June 30, 2020 , we were in compliance with these financial covenants with a Consolidated Leverage Ratio of 2.60 to 1.00 and a Consolidated Interest Coverage Ratio of 14.07 to 1.00. Borrowings outstanding under the Amended Credit Agreement at June 30, 2020 totaled $328.0 million . These borrowings carried a weighted average interest rate of 2.7% , including the effect of the interest rate swaps described in Note 9 “Derivative Instruments and Hedging Activity." Borrowings outstanding under the Amended Credit Agreement at December 31, 2019 were $205.0 million and carried a weighted average interest rate of 3.0% , including the effect of the interest rate swap outstanding at the time and described in Note 9 “Derivative Instruments and Hedging Activity." The borrowing capacity under the revolving credit facility is reduced by any outstanding borrowings under the revolving credit facility and outstanding letters of credit. At June 30, 2020 , we had outstanding letters of credit totaling $1.7 million , which are primarily used as security deposits for our office facilities. As of June 30, 2020 , the unused borrowing capacity under the revolving credit facility was $270.3 million . Promissory Note due 2024 On June 30, 2017, in conjunction with our purchase of an aircraft related to the acquisition of Innosight, we assumed, from the sellers of the aircraft, a promissory note with an outstanding principal balance of $5.1 million . The principal balance of the promissory note is subject to scheduled monthly principal payments until the maturity date of March 1, 2024 , at which time a final payment of $1.5 million , plus any accrued and unpaid interest, will be due. Under the terms of the promissory note, we will pay interest on the outstanding principal amount at a rate of one month LIBOR plus 1.97% per annum. The obligations under the promissory note are secured pursuant to a Loan and Aircraft Security Agreement with Banc of America Leasing & Capital, LLC, which grants the lender a first priority security interest in the aircraft. At June 30, 2020 , the outstanding principal amount of the promissory note was $3.6 million , and the aircraft had a carrying amount of $4.8 million . At December 31, 2019 , the outstanding principal amount of the promissory note was $3.9 million , and the aircraft had a carrying amount of $5.1 million

Restructuring Charges

Restructuring Charges	6 Months Ended
	Jun. 30, 2020
Restructuring and Related Activities [Abstract]
Restructuring Charges	Restructuring Charges Restructuring charges for the three and six months ended June 30, 2020 were $0.1 million and $1.7 million , respectively. Restructuring charges recognized in the first six months of 2020 include a $1.2 million accrual for the termination of a third-party advisor agreement, $0.3 million related to workforce reductions to better align resources with market demand, and $0.1 million related to workforce reductions in our corporate operations. Restructuring charges for the three and six months ended June 30, 2019 were $0.8 million and $2.0 million , respectively. During the second quarter of 2019, we exited the remaining portion of our Middleton, Wisconsin office and an office space in Houston, Texas, resulting in restructuring charges of $0.4 million and $0.1 million , respectively, which primarily consisted of accelerated depreciation on furniture and fixtures in those offices. Additionally, we recognized a $0.2 million restructuring charge in the second quarter of 2019 related to workforce reductions as we continue to better align resources with market demand. During the first quarter of 2019, we exited a portion of our Lake Oswego, Oregon corporate office resulting in a $0.7 million lease impairment charge on the related operating lease right-of-use asset and leasehold improvements and $0.2 million of accelerated depreciation on furniture and fixtures in that office. Additionally, we recognized a $0.2 million restructuring charge in the first quarter of 2019 related to workforce reductions in our corporate operations. The table below sets forth the changes in the carrying amount of our restructuring charge liability by restructuring type for the six months ended June 30, 2020 . Employee Costs Office Space Reductions Other Total Balance as of December 31, 2019 $ 68 $ 91 $ — $ 159 Additions 411 — 1,188 1,599 Payments (474 ) — (132 ) (606 ) Adjustments 2 (12 ) — (10 ) Balance as of June 30, 2020 $ 7 $ 79 $ 1,056 $ 1,142 The restructuring charge liability related to employee costs at June 30, 2020 is expected to be paid in the next 12 months and is included as a component of accrued payroll and related benefits. The $0.1 million restructuring charge liability related to office space reductions at June 30, 2020 is included as a component of accrued expenses and other current liabilities and deferred compensation and other liabilities. The $1.1 million other restructuring charge liability at June 30, 2020 is related to the termination of a third-party advisor agreement and is expected to be paid over the next 31 months and is included as a component of accrued expenses and other current liabilities and deferred compensation and other liabilities.

Derivative Instruments and Hedg

Derivative Instruments and Hedging Activity	6 Months Ended
	Jun. 30, 2020
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Derivative Instruments and Hedging Activity	Derivative Instruments and Hedging Activity On June 22, 2017, we entered into a forward interest rate swap agreement effective August 31, 2017 and ending August 31, 2022 , with a notional amount of $50.0 million . We entered into this derivative instrument to hedge against the interest rate risks of our variable-rate borrowings. Under the terms of the interest rate swap agreement, we receive from the counterparty interest on the notional amount based on one month LIBOR and we pay to the counterparty a fixed rate of 1.900% . On January 30, 2020, we entered into a forward interest rate swap agreement effective December 31, 2019 and ending December 31, 2024 , with a notional amount of $50.0 million . We entered into this derivative instrument to further hedge against the interest rate risks of our variable-rate borrowings. Under the terms of the interest rate swap agreement, we receive from the counterparty interest on the notional amount based on one month LIBOR and we pay to the counterparty a fixed rate of 1.500% . On March 16, 2020, we entered into a forward interest rate swap agreement effective February 28, 2020 and ending February 28, 2025 , with a notional amount of $100.0 million . We entered into this derivative instrument to further hedge against the interest rate risks of our variable-rate borrowings. Under the terms of the interest rate swap agreement, we receive from the counterparty interest on the notional amount based on one month LIBOR and we pay to the counterparty a fixed rate of 0.885% . We recognize all derivative instruments as either assets or liabilities at fair value on the balance sheet. We have designated these derivative instruments as cash flow hedges. Therefore, changes in the fair value of the derivative instruments are recorded to other comprehensive income (“OCI”) to the extent effective and reclassified into interest expense upon settlement. As of June 30, 2020 , it was anticipated that $1.7 million of the losses, net of tax, currently recorded in accumulated other comprehensive income will be reclassified into earnings within the next 12 months. The table below sets forth additional information relating to the interest rate swaps designated as a cash flow hedging instrument as of June 30, 2020 and December 31, 2019 . Fair Value (Derivative Asset and Liability) Balance Sheet Location June 30, December 31, Accrued expenses and other current liabilities $ 1,816 $ 159 Deferred compensation and other liabilities $ 3,309 $ 387 All of our derivative instruments are transacted under the International Swaps and Derivatives Association (ISDA) master agreements. These agreements permit the net settlement of amounts owed in the event of default and certain other termination events. Although netting is permitted, it is our policy to record all derivative assets and liabilities on a gross basis on our consolidated balance sheet. We do not use derivative instruments for trading or other speculative purposes. Refer to Note 11 “Other Comprehensive Income (Loss)” for additional information on our derivative instruments.

Fair Value of Financial Instrum

Fair Value of Financial Instruments	6 Months Ended
	Jun. 30, 2020
Fair Value Disclosures [Abstract]
Fair Value of Financial Instruments	Fair Value of Financial Instruments Certain of our assets and liabilities are measured at fair value. Fair value is defined as the price that would be received to sell an asset or the price that would be paid to transfer a liability in an orderly transaction between market participants at the measurement date. GAAP establishes a fair value hierarchy for inputs used in measuring fair value and requires companies to maximize the use of observable inputs and minimize the use of unobservable inputs. The fair value hierarchy consists of three levels based on the objectivity of the inputs as follows: Level 1 Inputs Quoted prices in active markets for identical assets or liabilities that the reporting entity has the ability to access at the measurement date. Level 2 Inputs Quoted prices in active markets for similar assets or liabilities; quoted prices for identical or similar assets or liabilities in markets that are not active; inputs other than quoted prices that are observable for the asset or liability; or inputs that are derived principally from or corroborated by observable market data by correlation or other means. Level 3 Inputs Unobservable inputs for the asset or liability, and include situations in which there is little, if any, market activity for the asset or liability. The table below sets forth our fair value hierarchy for our financial assets and liabilities measured at fair value on a recurring basis as of June 30, 2020 and December 31, 2019 . Level 1 Level 2 Level 3 Total June 30, 2020 Assets: Convertible debt investment $ — $ — $ 54,524 $ 54,524 Deferred compensation assets — 28,155 — 28,155 Total assets $ — $ 28,155 $ 54,524 $ 82,679 Liabilities: Interest rate swaps $ — $ 5,125 $ — $ 5,125 Total liabilities $ — $ 5,125 $ — $ 5,125 December 31, 2019 Assets: Convertible debt investment $ — $ — $ 49,542 $ 49,542 Deferred compensation assets — 27,445 — 27,445 Total assets $ — $ 27,445 $ 49,542 $ 76,987 Liabilities: Interest rate swap $ — $ 546 $ — $ 546 Total liabilities $ — $ 546 $ — $ 546 Interest rate swaps: The fair values of our interest rate swaps were derived using estimates to settle the interest rate swap agreements, which are based on the net present value of expected future cash flows on each leg of the swaps utilizing market-based inputs and a discount rate reflecting the risks involved. Convertible debt investment: In 2014 and 2015, we invested $27.9 million , in the form of zero coupon convertible debt (the "initial convertible notes"), in Shorelight Holdings, LLC (“Shorelight”), the parent company of Shorelight, a U.S.-based company that partners with leading nonprofit universities to increase access to and retention of international students, boost institutional growth, and enhance an institution’s global footprint. In the first quarter of 2020, we invested an additional $13.0 million , in the form of 1.69% convertible debt with a senior liquidation preference to the initial convertible notes (the "additional convertible note"); and amended our initial convertible notes to include a coupon rate of 1.69% and extend the maturity date to January 17, 2024 , which coincides with the maturity date of the additional convertible note. To determine the appropriate accounting treatment for our investment, we performed a variable interest entity (“VIE”) analysis and concluded that Shorelight does not meet the definition of a VIE. We also reviewed the characteristics of our investment to confirm that the convertible notes are not in-substance common stock that would warrant equity method accounting. After we reviewed all of the terms of the investment, we concluded the appropriate accounting treatment to be that of an available-for-sale debt security. The investment is carried at fair value with unrealized holding gains and losses excluded from earnings and reported in other comprehensive income. We estimate the fair value of our investment using a scenario-based approach in the form of a hybrid analysis that consists of a Monte Carlo simulation model and an expected return analysis. The conclusion of value for our investment is based on the probability weighted assessment of both scenarios. The hybrid analysis utilizes certain assumptions including the assumed holding period through the maturity date of January 17, 2024 , the applicable waterfall distribution at the end of the expected holding period based on the rights and privileges of the various instruments, cash flow projections discounted at the risk-adjusted rate of 24.0% , and the concluded equity volatility of 45.0% , all of which are Level 3 inputs. The valuation of our investment as of December 31, 2019 takes into consideration the equity value indication as well as the dilutive impact of the convertible debt issued by Shorelight in the first quarter of 2020, the terms of which were known or knowable as of December 31, 2019. The use of alternative estimates and assumptions could increase or decrease the estimated fair value of the investment, which would result in different impacts to our consolidated balance sheet and comprehensive income. Actual results may differ from our estimates. The fair value of the convertible debt investment is recorded in long-term investments on our consolidated balance sheets. The table below sets forth the changes in the balance of the convertible debt investment for the six months ended June 30, 2020 . Convertible Debt Investment Balance as of December 31, 2019 $ 49,542 Purchases 13,000 Change in fair value of convertible debt investment (8,018 ) Balance as of June 30, 2020 $ 54,524 Deferred compensation assets: We have a non-qualified deferred compensation plan (the "Plan") for the members of our board of directors and a select group of our employees. The deferred compensation liability is funded by the Plan assets, which consist of life insurance policies maintained within a trust. The cash surrender value of the life insurance policies approximates fair value and is based on third-party broker statements which provide the fair value of the life insurance policies' underlying investments, which are Level 2 inputs. The cash surrender value of the life insurance policies is invested primarily in mutual funds. The Plan assets are included in other non-current assets on our consolidated balance sheets. Realized and unrealized gains (losses) from the deferred compensation assets are recorded to other income (expense), net in our consolidated statements of operations. Financial assets and liabilities not recorded at fair value are as follows: Preferred Stock Investment In the fourth quarter of 2019, we invested $5.0 million , in the form of preferred stock, in Medically Home Group, Inc. ("Medically Home"), a healthcare technology-enabled services company. To determine the appropriate accounting treatment for our investment, we performed a VIE analysis and concluded that Medically Home does not meet the definition of a VIE. We also reviewed the characteristics of our investment to confirm that the preferred stock is not in-substance common stock that would warrant equity method accounting. After we reviewed all of the terms of the investment, we concluded the appropriate accounting treatment for our investment in Medically Home to be that of an equity security with no readily determinable fair value. We elected to apply the measurement alternative at the time of the purchase and will continue to do so until the investment does not qualify to be so measured. Under the measurement alternative, the investment is carried at cost minus impairment, if any, plus or minus changes resulting from observable price changes in orderly transactions for the identical or similar investment in Medically Home. On a quarterly basis, we review the information available to determine whether an orderly and observable transaction for the same or similar equity instrument occurred, and remeasure the fair value of the preferred stock using such identified transactions, with changes in the fair value recorded in consolidated statement of operations. Following our purchase, there has been no impairment, nor any observable price changes to our investment. Senior Secured Credit Facility The carrying value of our borrowings outstanding under our senior secured credit facility is stated at cost. Our carrying value approximates fair value, using Level 2 inputs, as the senior secured credit facility bears interest at variable rates based on current market rates as set forth in the Amended Credit Agreement. Refer to Note 7 “Financing Arrangements” for additional information on our senior secured credit facility. Promissory Note due 2024 The carrying value of our promissory note due 2024 is stated at cost. Our carrying value approximates fair value, using Level 2 inputs, as the promissory note bears interest at rates based on current market rates as set forth in the terms of the promissory note. Refer to Note 7 “Financing Arrangements” for additional information on our promissory note due 2024. Cash and Cash Equivalents and Other Financial Instruments Cash and cash equivalents are stated at cost, which approximates fair market value. The carrying values of all other financial instruments not described above reasonably approximate fair market value due to the nature of the financial instruments and the short-term maturity of these items.

Other Comprehensive Income (Los

Other Comprehensive Income (Loss)	6 Months Ended
	Jun. 30, 2020
Equity [Abstract]
Other Comprehensive Income (Loss)	Other Comprehensive Income (Loss) The table below sets forth the components of other comprehensive income (loss), net of tax, for the three and six months ended June 30, 2020 and 2019 . Three Months Ended Three Months Ended Before Tax Net of Before Tax Net of Other comprehensive income (loss): Foreign currency translation adjustments $ 104 $ — $ 104 $ (359 ) $ — $ (359 ) Unrealized gain (loss) on investment $ (7,670 ) $ 1,992 $ (5,678 ) $ 5,319 $ (1,404 ) $ 3,915 Unrealized gain (loss) on cash flow hedges: Change in fair value $ (2,640 ) $ 686 $ (1,954 ) $ (759 ) $ 201 $ (558 ) Reclassification adjustments into earnings 337 (88 ) 249 (72 ) 18 (54 ) Net unrealized gain (loss) $ (2,303 ) $ 598 $ (1,705 ) $ (831 ) $ 219 $ (612 ) Other comprehensive income (loss) $ (9,869 ) $ 2,590 $ (7,279 ) $ 4,129 $ (1,185 ) $ 2,944 Six Months Ended Six Months Ended Before Taxes Tax (Expense) Benefit Net of Taxes Before Taxes Tax (Expense) Benefit Net of Taxes Other comprehensive income (loss): Foreign currency translation adjustments $ (675 ) $ — $ (675 ) $ (43 ) $ — $ (43 ) Unrealized gain (loss) on investment $ (8,018 ) $ 2,082 $ (5,936 ) $ 8,928 $ (2,356 ) $ 6,572 Unrealized gain (loss) on cash flow hedges: Change in fair value $ (4,912 ) $ 1,276 $ (3,636 ) $ (1,006 ) $ 266 $ (740 ) Reclassification adjustments into earnings 333 (87 ) 246 (146 ) 37 (109 ) Net unrealized gain (loss) $ (4,579 ) $ 1,189 $ (3,390 ) $ (1,152 ) $ 303 $ (849 ) Other comprehensive income (loss) $ (13,272 ) $ 3,271 $ (10,001 ) $ 7,733 $ (2,053 ) $ 5,680 The before tax amounts reclassified from accumulated other comprehensive income related to our cash flow hedges are recorded to interest expense, net of interest income. Accumulated other comprehensive income, net of tax, includes the following components: Foreign Currency Translation Available-for-Sale Investment Cash Flow Hedges Total Balance, December 31, 2019 $ (566 ) $ 15,882 $ (380 ) $ 14,936 Current period change (675 ) (5,936 ) (3,390 ) (10,001 ) Balance, June 30, 2020 $ (1,241 ) $ 9,946 $ (3,770 ) $ 4,935

Income Taxes

Income Taxes	6 Months Ended
	Jun. 30, 2020
Income Tax Disclosure [Abstract]
Income Taxes	Income Taxes On March 27, 2020, the President of the United States signed into law the Coronavirus Aid, Relief, and Economic Security Act (“CARES Act”). The CARES Act is an approximately $2 trillion emergency economic stimulus package in response to the COVID-19 outbreak, which among other items, includes income tax provisions relating to net operating loss carryback periods and technical corrections to tax depreciation methods for qualified improvement property. As a result of the enactment of this legislation during the first quarter of 2020, we recorded a tax benefit of $0.8 million related to the remeasurement of a portion of our income tax receivable due to the ability to apply the federal net operating loss incurred in 2018 to prior year income for a refund at a higher tax rate in the carryback period. We apply an estimated annual effective tax rate to our year-to-date operating results to determine the interim provision for income tax expense. In addition, we recognize taxes related to unusual or infrequent items or resulting from a change in judgment regarding a position taken in a prior year as discrete items in the interim period in which the event occurs. For the three months ended June 30, 2020 , our effective tax rate was 20.1% as we recognized income tax expense from continuing operations of $3.4 million on income from continuing operations of $17.0 million . The effective tax rate of 20.1% was more favorable than the statutory rate, inclusive of state income taxes, of 26.0% , primarily due to the current year-to-date pre-tax losses and the impact during the quarter of certain nondeductible expense items, including the nondeductible portion of the goodwill impairment charges, based on the attribution of those expenses to the quarter in accordance with the allocation of income tax expense on a current year-to-date basis. The effective tax rate also reflected the positive impact of certain federal tax credits. For the three months ended June 30, 2019 , our effective tax rate was 24.8% as we recognized income tax expense from continuing operations of $3.5 million on income from continuing operations of $14.0 million . The effective tax rate of 24.8% was more favorable than the statutory rate, inclusive of state income taxes, of 26.4% , primarily due to non-taxable gains on our investments used to fund our deferred compensation liability and federal tax credits, partially offset by non-deductible business expenses. For the six months ended June 30, 2020 , our effective tax rate was 21.4% as we recognized an income tax benefit from continuing operations of $7.8 million on a loss from continuing operations of $36.5 million . The effective tax rate of 21.4% was less favorable than the statutory rate, inclusive of state income taxes, of 26.0% , primarily due to certain nondeductible expense items and the nondeductible portion of the goodwill impairment charges recorded during the first quarter of 2020. These unfavorable items were partially offset by a discrete tax benefit for share-based compensation awards that vested during the first quarter and the discrete tax benefit for the remeasurement of a portion of our income tax receivable as a result of the enactment of the CARES Act in the first quarter of 2020. For the six months ended June 30, 2019 , our effective tax rate was 25.8% as we recognized income tax expense from continuing operations of $4.8 million on income from continuing operations of $18.8 million . The effective tax rate of 25.8% was more favorable than the statutory rate, inclusive of state income taxes, of 26.4% , primarily due to non-taxable gains on our investments used to fund our deferred compensation liability, federal tax credits and share-based compensation awards that vested during the year; partially offset by non-deductible business expenses.

Commitments, Contingencies and

Commitments, Contingencies and Guarantees	6 Months Ended
	Jun. 30, 2020
Commitments and Contingencies Disclosure [Abstract]
Commitments, Contingencies and Guarantees	Commitments, Contingencies and Guarantees Litigation From time to time, we are involved in legal proceedings and litigation arising in the ordinary course of business. As of the date of this Quarterly Report on Form 10-Q, we are not a party to any litigation or legal proceeding that, in the current opinion of management, could have a material adverse effect on our financial position or results of operations. However, due to the risks and uncertainties inherent in legal proceedings, actual results could differ from current expected results. Guarantees Guarantees in the form of letters of credit totaling $1.7 million were outstanding at both June 30, 2020 and December 31, 2019 , primarily to support certain office lease obligations. In connection with certain business acquisitions, we may be required to pay post-closing consideration to the sellers if specific financial performance targets are met over a number of years as specified in the related purchase agreements. As of June 30, 2020 and December 31, 2019 , the total estimated fair value of our contingent consideration liability was zero. To the extent permitted by law, our bylaws and articles of incorporation require that we indemnify our officers and directors against judgments, fines and amounts paid in settlement, including attorneys’ fees, incurred in connection with civil or criminal action or proceedings, as it relates to their services to us if such person acted in good faith. Although there is no limit on the amount of indemnification, we may have recourse against our insurance carrier for certain payments made.

Segment Information

Segment Information	6 Months Ended
	Jun. 30, 2020
Segment Reporting [Abstract]
Segment Information	Segment Information Segments are defined as components of a company that engage in business activities from which they may earn revenues and incur expenses, and for which separate financial information is available and is evaluated regularly by the chief operating decision maker, or decision-making group, in deciding how to allocate resources and in assessing performance. Our chief operating decision maker, who is our chief executive officer, manages the business under three operating segments, which are our reportable segments: Healthcare, Business Advisory, and Education. • Healthcare Our Healthcare segment has a depth of expertise in financial and operational improvement, care transformation, culture and organizational excellence, strategy, and technology and analytics. We serve national and regional hospitals, integrated health systems, academic medical centers, community hospitals, and medical groups. Our solutions help clients evolve and adapt to the rapidly changing healthcare environment and achieve growth, optimize performance, enhance profitability, improve quality and clinical outcomes, align leaders, improve organizational culture, and drive physician, patient, and employee engagement across the enterprise to deliver better consumer outcomes. We help organizations transform and innovate their delivery model to focus on patient wellness by improving quality outcomes, minimizing care variation and fundamentally improving patient and population health. Our consultants partner with clients to help build and sustain today’s business to invest in the future by reducing complexity, improving operational efficiency and growing market share. We enable the healthcare of the future by identifying, integrating and optimizing technology investments to collect data that transforms care delivery and improves patient outcomes. We also develop future leaders capable of driving meaningful cultural and organizational change and who transform the consumer experience. • Business Advisory Our Business Advisory segment provides services to large and middle market organizations, lending institutions, law firms, investment banks, private equity firms, and not-for-profit organizations, including higher education and healthcare institutions. We assist clients in a broad range of industries and across the spectrum from healthy, well-capitalized companies to organizations in transition, as well as creditors, equity owners, and other key constituents. Our Enterprise Solutions and Analytics experts advise, deliver, and optimize technology and analytics solutions that enable organizations to manage and optimize their financial performance, operational efficiency, and client or stakeholder experience. Our Business Advisory experts resolve complex business issues and enhance client enterprise value through a suite of services including capital advisory, transaction advisory, operational improvement, restructuring and turnaround, valuation, and dispute advisory. Our Strategy and Innovation professionals collaborate with clients across a range of industries to identify new growth opportunities, build new ventures and capabilities, and accelerate organizational change. Our Life Sciences professionals provide strategic solutions to help pharmaceutical, medical device, and biotechnology companies deliver more value to patients, payers, and providers, and comply with regulations. • Education Our Education segment provides consulting and technology solutions to higher education institutions and academic medical centers. We collaborate with clients to address challenges relating to business and technology strategy, financial and operational excellence, student success, research administration, and regulatory compliance. Our research enterprise solutions assist clients in identifying and implementing institutional research strategy, optimizing clinical research operations, improving financial management and cost reimbursement, improving service to faculty, and mitigating risk compliance. Our technology strategy, enterprise applications, and analytics solutions transform and optimize operations, deliver time and cost savings, and enhance the student experience. Our institutional strategy, budgeting and financial management, and business operations align missions with business priorities, improve quality, and reduce costs institution-wide. Our student solutions improve attraction, retention and graduation rates, increase student satisfaction and help generate quality outcomes. Segment operating income consists of the revenues generated by a segment, less the direct costs of revenue and selling, general and administrative expenses that are incurred directly by the segment. Unallocated corporate costs include costs related to administrative functions that are performed in a centralized manner that are not attributable to a particular segment. These administrative function costs include costs for corporate office support, certain office facility costs, costs relating to accounting and finance, human resources, legal, marketing, information technology, and company-wide business development functions, as well as costs related to overall corporate management. The table below sets forth information about our operating segments for the three and six months ended June 30, 2020 and 2019 , along with the items necessary to reconcile the segment information to the totals reported in the accompanying consolidated financial statements. Three Months Ended Six Months Ended 2020 2019 2020 2019 Healthcare: Revenues $ 85,356 $ 101,939 $ 180,934 $ 195,621 Operating income $ 21,171 $ 33,344 $ 45,221 $ 61,195 Segment operating income as a percentage of segment revenues 24.8 % 32.7 % 25.0 % 31.3 % Business Advisory: Revenues $ 70,470 $ 62,277 $ 135,375 $ 121,083 Operating income $ 16,684 $ 11,474 $ 26,526 $ 21,055 Segment operating income as a percentage of segment revenues 23.7 % 18.4 % 19.6 % 17.4 % Education: Revenues $ 62,031 $ 56,538 $ 124,167 $ 108,495 Operating income $ 16,128 $ 16,204 $ 29,244 $ 28,822 Segment operating income as a percentage of segment revenues 26.0 % 28.7 % 23.6 % 26.6 % Total Company: Revenues $ 217,857 $ 220,754 $ 440,476 $ 425,199 Reimbursable expenses 2,970 23,534 22,273 42,151 Total revenues and reimbursable expenses $ 220,827 $ 244,288 $ 462,749 $ 467,350 Segment operating income $ 53,983 $ 61,022 $ 100,991 $ 111,072 Items not allocated at the segment level: Other operating expenses 31,638 36,481 58,784 73,059 Litigation and other gains — (485 ) (150 ) (941 ) Depreciation and amortization 6,391 7,151 12,438 14,323 Goodwill impairment charges 1 — — 59,816 — Other expense (income), net (1,032 ) 3,829 6,605 5,870 Income (loss) from continuing operations before taxes $ 16,986 $ 14,046 $ (36,502 ) $ 18,761 (1) The non-cash goodwill impairment charges are not allocated at the segment level because the underlying goodwill asset is reflective of our corporate investment in the segments. We do not include the impact of goodwill impairment charges in our evaluation of segment performance. The following table illustrates the disaggregation of revenues by billing arrangements, employee types, and timing of revenue recognition, including a reconciliation of the disaggregated revenues to revenues from our three operating segments for the three and six months ended June 30, 2020 and 2019. Three Months Ended June 30, 2020 Healthcare Business Advisory Education Total Billing Arrangements Fixed-fee $ 50,803 $ 27,374 $ 11,397 $ 89,574 Time and expense 14,029 40,264 44,568 98,861 Performance-based 14,480 1,586 695 16,761 Software support, maintenance and subscriptions 6,044 1,246 5,371 12,661 Total $ 85,356 $ 70,470 $ 62,031 $ 217,857 Employee Type (1) Revenue generated by full-time billable consultants $ 58,221 $ 67,269 $ 53,187 $ 178,677 Revenue generated by full-time equivalents 27,135 3,201 8,844 39,180 Total $ 85,356 $ 70,470 $ 62,031 $ 217,857 Timing of Revenue Recognition Revenue recognized over time $ 84,941 $ 70,470 $ 62,030 $ 217,441 Revenue recognized at a point in time 415 — 1 416 Total $ 85,356 $ 70,470 $ 62,031 $ 217,857 Six Months Ended June 30, 2020 Healthcare Business Advisory Education Total Billing Arrangements Fixed-fee $ 106,588 $ 52,767 $ 24,572 $ 183,927 Time and expense 28,762 77,853 88,279 194,894 Performance-based 33,401 2,232 695 36,328 Software support, maintenance and subscriptions 12,183 2,523 10,621 25,327 Total $ 180,934 $ 135,375 $ 124,167 $ 440,476 Employee Type (1) Revenue generated by full-time billable consultants $ 123,666 $ 129,226 $ 106,623 $ 359,515 Revenue generated by full-time equivalents 57,268 6,149 17,544 80,961 Total $ 180,934 $ 135,375 $ 124,167 $ 440,476 Timing of Revenue Recognition Revenue recognized over time $ 179,400 $ 135,375 $ 124,052 $ 438,827 Revenue recognized at a point in time 1,534 — 115 1,649 Total $ 180,934 $ 135,375 $ 124,167 $ 440,476 Three Months Ended June 30, 2019 Healthcare Business Advisory Education Total Billing Arrangements Fixed-fee $ 59,681 $ 26,688 $ 13,125 $ 99,494 Time and expense 14,275 33,804 39,076 87,155 Performance-based 22,021 532 — 22,553 Software support, maintenance and subscriptions 5,962 1,253 4,337 11,552 Total $ 101,939 $ 62,277 $ 56,538 $ 220,754 Employee Type (1) Revenue generated by full-time billable consultants $ 69,548 $ 60,054 $ 49,403 $ 179,005 Revenue generated by full-time equivalents 32,391 2,223 7,135 41,749 Total $ 101,939 $ 62,277 $ 56,538 $ 220,754 Timing of Revenue Recognition Revenue recognized over time $ 99,606 $ 62,277 $ 56,179 $ 218,062 Revenue recognized at a point in time 2,333 — 359 2,692 Total $ 101,939 $ 62,277 $ 56,538 $ 220,754 Six Months Ended June 30, 2019 Healthcare Business Advisory Education Total Billing Arrangements Fixed-fee $ 123,265 $ 48,360 $ 25,508 $ 197,133 Time and expense 27,038 69,113 74,434 170,585 Performance-based 33,831 1,196 — 35,027 Software support, maintenance and subscriptions 11,487 2,414 8,553 22,454 Total $ 195,621 $ 121,083 $ 108,495 $ 425,199 Employee Type (1) Revenue generated by full-time billable consultants $ 134,366 $ 117,148 $ 95,410 $ 346,924 Revenue generated by full-time equivalents 61,255 3,935 13,085 78,275 Total $ 195,621 $ 121,083 $ 108,495 $ 425,199 Timing of Revenue Recognition Revenue recognized over time $ 191,248 $ 121,083 $ 107,890 $ 420,221 Revenue recognized at a point in time 4,373 — 605 4,978 Total $ 195,621 $ 121,083 $ 108,495 $ 425,199 (1) Full-time billable consultants consist of our full-time professionals who provide consulting services to our clients and are billable to our clients based on the number of hours worked. Full-time equivalent professionals consist of leadership coaches and their support staff within our Culture and Organizational Excellence solution, consultants who work variable schedules as needed by our clients, and full-time employees who provide software support and maintenance services to our clients. At June 30, 2020 one client in our Healthcare segment had a total receivable and unbilled services balance that accounted for 16.5% of our combined balance of receivables from clients, net and unbilled services, net. The outstanding balance for this client is the result of outstanding invoices due in the normal course of the contract payment terms and services performed in advance of the contract billing schedule. At December 31, 2019, no single client accounted for greater than 10% of our combined balance of receivables from clients, net and unbilled services, net. During the three and six months ended June 30, 2020

Basis of Presentation (Policies

Basis of Presentation (Policies)	6 Months Ended
	Jun. 30, 2020
Accounting Policies [Abstract]
Basis of Presentation	The accompanying unaudited consolidated financial statements reflect the financial position, results of operations, and cash flows as of and for the three and six months ended June 30, 2020 and 2019 . These financial statements have been prepared in accordance with the rules and regulations of the U.S. Securities and Exchange Commission ("SEC") for Quarterly Reports on Form 10-Q. Accordingly, these financial statements do not include all of the information and note disclosures required by accounting principles generally accepted in the United States of America ("GAAP") for annual financial statements. In the opinion of management, these financial statements reflect all adjustments of a normal, recurring nature necessary for the fair statement of our financial position, results of operations, and cash flows for the interim periods presented in conformity with GAAP. These financial statements should be read in conjunction with our consolidated financial statements and notes thereto for the year ended December 31, 2019 included in our Annual Report on Form 10-K and our Quarterly Report on Form 10-Q for the period ended March 31, 2020. Our results for any interim period are not necessarily indicative of results for a full year or any other interim period.
Earnings Per Share, Policy	Basic earnings per share excludes dilution and is computed by dividing net income by the weighted average number of common shares outstanding for the period, excluding unvested restricted common stock. Diluted earnings per share reflects the potential reduction in earnings per share that could occur if securities or other contracts to issue common stock were exercised or converted into common stock under the treasury stock method. Such securities or other contracts include unvested restricted stock awards, outstanding common stock options, convertible senior notes, and outstanding warrants, to the extent dilutive. In periods for which we report a net loss from continuing operations, diluted weighted average common shares outstanding excludes all potential common stock equivalents as their impact on diluted net loss from continuing operations per share would be anti-dilutive.
Derivatives and Hedging, Policy	We recognize all derivative instruments as either assets or liabilities at fair value on the balance sheet. We have designated these derivative instruments as cash flow hedges. Therefore, changes in the fair value of the derivative instruments are recorded to other comprehensive income (“OCI”) to the extent effective and reclassified into interest expense upon settlement.
Fair Value of Financial Instruments, Policy	Fair value is defined as the price that would be received to sell an asset or the price that would be paid to transfer a liability in an orderly transaction between market participants at the measurement date. GAAP establishes a fair value hierarchy for inputs used in measuring fair value and requires companies to maximize the use of observable inputs and minimize the use of unobservable inputs. The fair value hierarchy consists of three levels based on the objectivity of the inputs as follows: Level 1 Inputs Quoted prices in active markets for identical assets or liabilities that the reporting entity has the ability to access at the measurement date. Level 2 Inputs Quoted prices in active markets for similar assets or liabilities; quoted prices for identical or similar assets or liabilities in markets that are not active; inputs other than quoted prices that are observable for the asset or liability; or inputs that are derived principally from or corroborated by observable market data by correlation or other means. Level 3 Inputs Unobservable inputs for the asset or liability, and include situations in which there is little, if any, market activity for the asset or liability.
Segment Reporting, Policy	Segments are defined as components of a company that engage in business activities from which they may earn revenues and incur expenses, and for which separate financial information is available and is evaluated regularly by the chief operating decision maker, or decision-making group, in deciding how to allocate resources and in assessing performance. Our chief operating decision maker, who is our chief executive officer, manages the business under three operating segments, which are our reportable segments: Healthcare, Business Advisory, and Education.

Goodwill and Intangible Assets

Goodwill and Intangible Assets (Tables)	6 Months Ended
	Jun. 30, 2020
Goodwill and Intangible Assets Disclosure [Abstract]
Changes in Carrying Amount of Goodwill	The table below sets forth the changes in the carrying amount of goodwill by reportable segment for the six months ended June 30, 2020 . Healthcare Business Advisory Education Total Balance as of December 31, 2019: Goodwill $ 636,810 $ 302,057 $ 103,889 $ 1,042,756 Accumulated impairment losses (208,081 ) (187,995 ) — (396,076 ) Goodwill, net as of December 31, 2019 428,729 114,062 103,889 646,680 Goodwill impairment charges — (59,816 ) — (59,816 ) Foreign currency translation — (629 ) — (629 ) Goodwill, net as of June 30, 2020 $ 428,729 $ 53,617 $ 103,889 $ 586,235
Intangible Assets	Intangible assets as of June 30, 2020 and December 31, 2019 consisted of the following: As of June 30, 2020 As of December 31, 2019 Useful Life (in years) Gross Carrying Amount Accumulated Amortization Gross Carrying Amount Accumulated Amortization Customer relationships 3 to 13 $ 87,072 $ 66,358 $ 87,577 $ 61,882 Trade names 5 to 6 28,930 26,490 28,930 25,894 Technology and software 5 5,440 4,739 5,694 4,321 Non-competition agreements 5 2,220 1,670 2,220 1,447 Customer contracts 2 800 289 800 52 Total $ 124,462 $ 99,546 $ 125,221 $ 93,596
Schedule of Future Amortization Expense	The table below sets forth the estimated annual amortization expense for the intangible assets recorded as of June 30, 2020 . Year Ending December 31, Estimated Amortization Expense 2020 $ 12,561 2021 $ 8,358 2022 $ 6,111 2023 $ 3,512 2024 $ 741

Earnings Per Share (Tables)

Earnings Per Share (Tables)	6 Months Ended
	Jun. 30, 2020
Earnings Per Share [Abstract]
Reconciliation of Basic and Diluted Earnings Per Share	Earnings (loss) per share under the basic and diluted computations are as follows: Three Months Ended Six Months Ended 2020 2019 2020 2019 Net income (loss) from continuing operations $ 13,572 $ 10,569 $ (28,701 ) $ 13,919 Income (loss) from discontinued operations, net of tax (25 ) (97 ) (60 ) (143 ) Net income (loss) $ 13,547 $ 10,472 $ (28,761 ) $ 13,776 Weighted average common shares outstanding – basic 21,869 21,997 21,848 21,933 Weighted average common stock equivalents 247 403 — 423 Weighted average common shares outstanding – diluted 22,116 22,400 21,848 22,356 Net earnings (loss) per basic share: Net income (loss) from continuing operations $ 0.62 $ 0.48 $ (1.31 ) $ 0.63 Income (loss) from discontinued operations, net of tax — — (0.01 ) — Net income (loss) $ 0.62 $ 0.48 $ (1.32 ) $ 0.63 Net earnings (loss) per diluted share: Net income (loss) from continuing operations $ 0.61 $ 0.47 $ (1.31 ) $ 0.62 Income (loss) from discontinued operations, net of tax — — (0.01 ) — Net income (loss) $ 0.61 $ 0.47 $ (1.32 ) $ 0.62
Summary of Anti-dilutive Securities Excluded from Computation of Weighted Average Common Stock Equivalents	The number of anti-dilutive securities excluded from the computation of the weighted average common stock equivalents presented above were as follows: As of June 30, 2020 2019 Unvested restricted stock awards 58 — Convertible senior notes — 3,129 Warrants related to the issuance of convertible senior notes — 3,129 Total anti-dilutive securities 58 6,258

Financing Arrangements (Tables)

Financing Arrangements (Tables)	6 Months Ended
	Jun. 30, 2020
Debt Disclosure [Abstract]
Summary of Carrying Amounts of Debt	A summary of the carrying amounts of our debt follows: June 30, 2020 December 31, 2019 Senior secured credit facility $ 328,000 $ 205,000 Promissory note due 2024 3,590 3,853 Total long-term debt $ 331,590 $ 208,853 Current maturities of long-term debt (536 ) (529 ) Long-term debt, net of current portion $ 331,054 $ 208,324
Schedule of Maturities of Long-term Debt	Below is a summary of the scheduled remaining principal payments of our debt as of June 30, 2020 . Principal Payments of Long-Term Debt 2020 $ 266 2021 $ 544 2022 $ 559 2023 $ 575 2024 $ 329,646
Summary of Interest Expense Recognized	The following table presents the amount of interest expense recognized related to the Convertible Notes for the periods presented. Three Months Ended Six Months Ended Contractual interest coupon $ 781 $ 1,563 Amortization of debt discount 2,145 4,265 Amortization of debt issuance costs 315 630 Total interest expense $ 3,241 $ 6,458

Restructuring Charges Restructu

Restructuring Charges Restructuring Liability Rollforward (Tables)	6 Months Ended
	Jun. 30, 2020
Restructuring and Related Activities [Abstract]
Schedule of Restructuring Reserve by Type of Cost	The table below sets forth the changes in the carrying amount of our restructuring charge liability by restructuring type for the six months ended June 30, 2020 . Employee Costs Office Space Reductions Other Total Balance as of December 31, 2019 $ 68 $ 91 $ — $ 159 Additions 411 — 1,188 1,599 Payments (474 ) — (132 ) (606 ) Adjustments 2 (12 ) — (10 ) Balance as of June 30, 2020 $ 7 $ 79 $ 1,056 $ 1,142

Derivative Instruments and He_2

Derivative Instruments and Hedging Activity (Tables)	6 Months Ended
	Jun. 30, 2020
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Fair Value Interest Rate Swaps Designated as Cash Flow Hedging Instruments	The table below sets forth additional information relating to the interest rate swaps designated as a cash flow hedging instrument as of June 30, 2020 and December 31, 2019 . Fair Value (Derivative Asset and Liability) Balance Sheet Location June 30, December 31, Accrued expenses and other current liabilities $ 1,816 $ 159 Deferred compensation and other liabilities $ 3,309 $ 387

Fair Value of Financial Instr_2

Fair Value of Financial Instruments (Tables)	6 Months Ended
	Jun. 30, 2020
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Financial Assets and Liabilities Measured at Fair Value on Recurring Basis	The table below sets forth our fair value hierarchy for our financial assets and liabilities measured at fair value on a recurring basis as of June 30, 2020 and December 31, 2019 . Level 1 Level 2 Level 3 Total June 30, 2020 Assets: Convertible debt investment $ — $ — $ 54,524 $ 54,524 Deferred compensation assets — 28,155 — 28,155 Total assets $ — $ 28,155 $ 54,524 $ 82,679 Liabilities: Interest rate swaps $ — $ 5,125 $ — $ 5,125 Total liabilities $ — $ 5,125 $ — $ 5,125 December 31, 2019 Assets: Convertible debt investment $ — $ — $ 49,542 $ 49,542 Deferred compensation assets — 27,445 — 27,445 Total assets $ — $ 27,445 $ 49,542 $ 76,987 Liabilities: Interest rate swap $ — $ 546 $ — $ 546 Total liabilities $ — $ 546 $ — $ 546
Convertible senior notes
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Table Text Block]	The table below sets forth the changes in the balance of the convertible debt investment for the six months ended June 30, 2020 . Convertible Debt Investment Balance as of December 31, 2019 $ 49,542 Purchases 13,000 Change in fair value of convertible debt investment (8,018 ) Balance as of June 30, 2020 $ 54,524

Other Comprehensive Income (L_2

Other Comprehensive Income (Loss) (Tables)	6 Months Ended
	Jun. 30, 2020
Equity [Abstract]
Components of Other Comprehensive Income (Loss), Net of Tax	The table below sets forth the components of other comprehensive income (loss), net of tax, for the three and six months ended June 30, 2020 and 2019 . Three Months Ended Three Months Ended Before Tax Net of Before Tax Net of Other comprehensive income (loss): Foreign currency translation adjustments $ 104 $ — $ 104 $ (359 ) $ — $ (359 ) Unrealized gain (loss) on investment $ (7,670 ) $ 1,992 $ (5,678 ) $ 5,319 $ (1,404 ) $ 3,915 Unrealized gain (loss) on cash flow hedges: Change in fair value $ (2,640 ) $ 686 $ (1,954 ) $ (759 ) $ 201 $ (558 ) Reclassification adjustments into earnings 337 (88 ) 249 (72 ) 18 (54 ) Net unrealized gain (loss) $ (2,303 ) $ 598 $ (1,705 ) $ (831 ) $ 219 $ (612 ) Other comprehensive income (loss) $ (9,869 ) $ 2,590 $ (7,279 ) $ 4,129 $ (1,185 ) $ 2,944 Six Months Ended Six Months Ended Before Taxes Tax (Expense) Benefit Net of Taxes Before Taxes Tax (Expense) Benefit Net of Taxes Other comprehensive income (loss): Foreign currency translation adjustments $ (675 ) $ — $ (675 ) $ (43 ) $ — $ (43 ) Unrealized gain (loss) on investment $ (8,018 ) $ 2,082 $ (5,936 ) $ 8,928 $ (2,356 ) $ 6,572 Unrealized gain (loss) on cash flow hedges: Change in fair value $ (4,912 ) $ 1,276 $ (3,636 ) $ (1,006 ) $ 266 $ (740 ) Reclassification adjustments into earnings 333 (87 ) 246 (146 ) 37 (109 ) Net unrealized gain (loss) $ (4,579 ) $ 1,189 $ (3,390 ) $ (1,152 ) $ 303 $ (849 ) Other comprehensive income (loss) $ (13,272 ) $ 3,271 $ (10,001 ) $ 7,733 $ (2,053 ) $ 5,680
Components of Accumulated Other Comprehensive Income (Loss), Net of Tax	Accumulated other comprehensive income, net of tax, includes the following components: Foreign Currency Translation Available-for-Sale Investment Cash Flow Hedges Total Balance, December 31, 2019 $ (566 ) $ 15,882 $ (380 ) $ 14,936 Current period change (675 ) (5,936 ) (3,390 ) (10,001 ) Balance, June 30, 2020 $ (1,241 ) $ 9,946 $ (3,770 ) $ 4,935

Segment Information (Tables)

Segment Information (Tables)	6 Months Ended
	Jun. 30, 2020
Segment Reporting [Abstract]
Components of Segment Information	The table below sets forth information about our operating segments for the three and six months ended June 30, 2020 and 2019 , along with the items necessary to reconcile the segment information to the totals reported in the accompanying consolidated financial statements. Three Months Ended Six Months Ended 2020 2019 2020 2019 Healthcare: Revenues $ 85,356 $ 101,939 $ 180,934 $ 195,621 Operating income $ 21,171 $ 33,344 $ 45,221 $ 61,195 Segment operating income as a percentage of segment revenues 24.8 % 32.7 % 25.0 % 31.3 % Business Advisory: Revenues $ 70,470 $ 62,277 $ 135,375 $ 121,083 Operating income $ 16,684 $ 11,474 $ 26,526 $ 21,055 Segment operating income as a percentage of segment revenues 23.7 % 18.4 % 19.6 % 17.4 % Education: Revenues $ 62,031 $ 56,538 $ 124,167 $ 108,495 Operating income $ 16,128 $ 16,204 $ 29,244 $ 28,822 Segment operating income as a percentage of segment revenues 26.0 % 28.7 % 23.6 % 26.6 % Total Company: Revenues $ 217,857 $ 220,754 $ 440,476 $ 425,199 Reimbursable expenses 2,970 23,534 22,273 42,151 Total revenues and reimbursable expenses $ 220,827 $ 244,288 $ 462,749 $ 467,350 Segment operating income $ 53,983 $ 61,022 $ 100,991 $ 111,072 Items not allocated at the segment level: Other operating expenses 31,638 36,481 58,784 73,059 Litigation and other gains — (485 ) (150 ) (941 ) Depreciation and amortization 6,391 7,151 12,438 14,323 Goodwill impairment charges 1 — — 59,816 — Other expense (income), net (1,032 ) 3,829 6,605 5,870 Income (loss) from continuing operations before taxes $ 16,986 $ 14,046 $ (36,502 ) $ 18,761 (1) The non-cash goodwill impairment charges are not allocated at the segment level because the underlying goodwill asset is reflective of our corporate investment in the segments. We do not include the impact of goodwill impairment charges in our evaluation of segment performance.
Disaggregation of Revenue	(1) The non-cash goodwill impairment charges are not allocated at the segment level because the underlying goodwill asset is reflective of our corporate investment in the segments. We do not include the impact of goodwill impairment charges in our evaluation of segment performance. The following table illustrates the disaggregation of revenues by billing arrangements, employee types, and timing of revenue recognition, including a reconciliation of the disaggregated revenues to revenues from our three operating segments for the three and six months ended June 30, 2020 and 2019. Three Months Ended June 30, 2020 Healthcare Business Advisory Education Total Billing Arrangements Fixed-fee $ 50,803 $ 27,374 $ 11,397 $ 89,574 Time and expense 14,029 40,264 44,568 98,861 Performance-based 14,480 1,586 695 16,761 Software support, maintenance and subscriptions 6,044 1,246 5,371 12,661 Total $ 85,356 $ 70,470 $ 62,031 $ 217,857 Employee Type (1) Revenue generated by full-time billable consultants $ 58,221 $ 67,269 $ 53,187 $ 178,677 Revenue generated by full-time equivalents 27,135 3,201 8,844 39,180 Total $ 85,356 $ 70,470 $ 62,031 $ 217,857 Timing of Revenue Recognition Revenue recognized over time $ 84,941 $ 70,470 $ 62,030 $ 217,441 Revenue recognized at a point in time 415 — 1 416 Total $ 85,356 $ 70,470 $ 62,031 $ 217,857 Six Months Ended June 30, 2020 Healthcare Business Advisory Education Total Billing Arrangements Fixed-fee $ 106,588 $ 52,767 $ 24,572 $ 183,927 Time and expense 28,762 77,853 88,279 194,894 Performance-based 33,401 2,232 695 36,328 Software support, maintenance and subscriptions 12,183 2,523 10,621 25,327 Total $ 180,934 $ 135,375 $ 124,167 $ 440,476 Employee Type (1) Revenue generated by full-time billable consultants $ 123,666 $ 129,226 $ 106,623 $ 359,515 Revenue generated by full-time equivalents 57,268 6,149 17,544 80,961 Total $ 180,934 $ 135,375 $ 124,167 $ 440,476 Timing of Revenue Recognition Revenue recognized over time $ 179,400 $ 135,375 $ 124,052 $ 438,827 Revenue recognized at a point in time 1,534 — 115 1,649 Total $ 180,934 $ 135,375 $ 124,167 $ 440,476 Three Months Ended June 30, 2019 Healthcare Business Advisory Education Total Billing Arrangements Fixed-fee $ 59,681 $ 26,688 $ 13,125 $ 99,494 Time and expense 14,275 33,804 39,076 87,155 Performance-based 22,021 532 — 22,553 Software support, maintenance and subscriptions 5,962 1,253 4,337 11,552 Total $ 101,939 $ 62,277 $ 56,538 $ 220,754 Employee Type (1) Revenue generated by full-time billable consultants $ 69,548 $ 60,054 $ 49,403 $ 179,005 Revenue generated by full-time equivalents 32,391 2,223 7,135 41,749 Total $ 101,939 $ 62,277 $ 56,538 $ 220,754 Timing of Revenue Recognition Revenue recognized over time $ 99,606 $ 62,277 $ 56,179 $ 218,062 Revenue recognized at a point in time 2,333 — 359 2,692 Total $ 101,939 $ 62,277 $ 56,538 $ 220,754 Six Months Ended June 30, 2019 Healthcare Business Advisory Education Total Billing Arrangements Fixed-fee $ 123,265 $ 48,360 $ 25,508 $ 197,133 Time and expense 27,038 69,113 74,434 170,585 Performance-based 33,831 1,196 — 35,027 Software support, maintenance and subscriptions 11,487 2,414 8,553 22,454 Total $ 195,621 $ 121,083 $ 108,495 $ 425,199 Employee Type (1) Revenue generated by full-time billable consultants $ 134,366 $ 117,148 $ 95,410 $ 346,924 Revenue generated by full-time equivalents 61,255 3,935 13,085 78,275 Total $ 195,621 $ 121,083 $ 108,495 $ 425,199 Timing of Revenue Recognition Revenue recognized over time $ 191,248 $ 121,083 $ 107,890 $ 420,221 Revenue recognized at a point in time 4,373 — 605 4,978 Total $ 195,621 $ 121,083 $ 108,495 $ 425,199 (1) Full-time billable consultants consist of our full-time professionals who provide consulting services to our clients and are billable to our clients based on the number of hours worked. Full-time equivalent professionals consist of leadership coaches and their support staff within our Culture and Organizational Excellence solution, consultants who work variable schedules as needed by our clients, and full-time employees who provide software support and maintenance services to our clients.

Goodwill and Intangible Asset_2

Goodwill and Intangible Assets - Changes in Carrying Amount of Goodwill (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019	Dec. 31, 2019
Goodwill [Line Items]
Goodwill					$ 1,042,756
Accumulated impairment losses					(396,076)
Goodwill, Impairment Loss	$ 0	$ 0	$ (59,816)	$ 0
Goodwill, Foreign Currency Translation Gain (Loss)			(629)
Goodwill, net ending balance	586,235		586,235		646,680
Healthcare
Goodwill [Line Items]
Goodwill					636,810
Accumulated impairment losses					(208,081)
Goodwill, Impairment Loss			0
Goodwill, Foreign Currency Translation Gain (Loss)			0
Goodwill, net ending balance	428,729		428,729		428,729
Education [Member]
Goodwill [Line Items]
Goodwill					103,889
Accumulated impairment losses					0
Goodwill, Impairment Loss			0
Goodwill, Foreign Currency Translation Gain (Loss)			0
Goodwill, net ending balance	103,889		103,889		103,889
Business Advisory
Goodwill [Line Items]
Goodwill					302,057
Accumulated impairment losses					(187,995)
Goodwill, Impairment Loss			59,816
Goodwill, Foreign Currency Translation Gain (Loss)			(629)
Goodwill, net ending balance	$ 53,617		$ 53,617		$ 114,062

Goodwill and Intangible Asset_3

Goodwill and Intangible Assets - Intangible Assets (Detail) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2020	Dec. 31, 2019
Intangible assets
Gross Carrying Amount	$ 124,462	$ 125,221
Accumulated Amortization	99,546	93,596
Customer Relationships [Member]
Intangible assets
Gross Carrying Amount	87,072	87,577
Accumulated Amortization	$ 66,358	61,882
Customer Relationships [Member] | Minimum
Intangible assets
Useful Life (in years)	3 years
Customer Relationships [Member] | Maximum
Intangible assets
Useful Life (in years)	13 years
Trade Names [Member]
Intangible assets
Gross Carrying Amount	$ 28,930	28,930
Accumulated Amortization	$ 26,490	25,894
Trade Names [Member] | Minimum
Intangible assets
Useful Life (in years)	5 years
Trade Names [Member] | Maximum
Intangible assets
Useful Life (in years)	6 years
Technology And Software [Member]
Intangible assets
Useful Life (in years)	5 years
Gross Carrying Amount	$ 5,440	5,694
Accumulated Amortization	$ 4,739	4,321
Noncompete Agreements [Member]
Intangible assets
Useful Life (in years)	5 years
Gross Carrying Amount	$ 2,220	2,220
Accumulated Amortization	$ 1,670	1,447
Customer Contracts [Member]
Intangible assets
Useful Life (in years)	2 years
Gross Carrying Amount	$ 800	800
Accumulated Amortization	$ 289	$ 52

Goodwill and Intangible Asset_4

Goodwill and Intangible Assets - Amortization Expense (Detail) $ in Thousands	Jun. 30, 2020USD ($)
Goodwill and Intangible Assets Disclosure [Abstract]
Finite-Lived Intangible Assets, Amortization Expense, Next Twelve Months	$ 12,561
Estimated annual intangible assets amortization expense, Year Two	8,358
Estimated annual intangible assets amortization expense, Year Three	6,111
Estimated annual intangible assets amortization expense, Year Four	3,512
Estimated annual intangible assets amortization expense, Year Five	$ 741

Goodwill and Intangible Asset_5

Goodwill and Intangible Assets Goodwill and Intangible Assets - Additional Information (Details) - USD ($) $ in Thousands	3 Months Ended			6 Months Ended
	Jun. 30, 2020	Mar. 31, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019	Dec. 31, 2019
Goodwill [Line Items]
Goodwill, Impairment Loss	$ 0		$ 0	$ 59,816	$ 0
Goodwill	586,235			586,235		$ 646,680
Amortization of Intangible Assets	$ 3,200		$ 4,300	$ 6,400	$ 8,800
Strategy and Innovation [Member]
Goodwill [Line Items]
Goodwill, Impairment Loss		$ 49,900
Goodwill		37,500
Life Sciences [Member]
Goodwill [Line Items]
Goodwill, Impairment Loss		$ 9,900
Measurement Input, Long-term Revenue Growth Rate [Member] | Strategy and Innovation [Member]
Goodwill [Line Items]
Fair Value of Reporting Unit, Measurement Input		3.00%
Measurement Input, Long-term Revenue Growth Rate [Member] | Life Sciences [Member]
Goodwill [Line Items]
Fair Value of Reporting Unit, Measurement Input		3.00%
Measurement Input, Long-term EBITDA margin [Domain] | Strategy and Innovation [Member]
Goodwill [Line Items]
Fair Value of Reporting Unit, Measurement Input		24.80%
Measurement Input, Long-term EBITDA margin [Domain] | Life Sciences [Member]
Goodwill [Line Items]
Fair Value of Reporting Unit, Measurement Input		6.70%
Measurement Input, Discount Rate [Member] | Strategy and Innovation [Member]
Goodwill [Line Items]
Fair Value of Reporting Unit, Measurement Input		16.00%
Measurement Input, Discount Rate [Member] | Life Sciences [Member]
Goodwill [Line Items]
Fair Value of Reporting Unit, Measurement Input		10.50%
Measurement Input, Revenue Multiple [Member] | Minimum | Strategy and Innovation [Member]
Goodwill [Line Items]
Fair Value of Reporting Unit, Measurement Input		120.00%
Measurement Input, Revenue Multiple [Member] | Minimum | Life Sciences [Member]
Goodwill [Line Items]
Fair Value of Reporting Unit, Measurement Input		30.00%
Measurement Input, Revenue Multiple [Member] | Maximum | Strategy and Innovation [Member]
Goodwill [Line Items]
Fair Value of Reporting Unit, Measurement Input		170.00%
Measurement Input, Revenue Multiple [Member] | Maximum | Life Sciences [Member]
Goodwill [Line Items]
Fair Value of Reporting Unit, Measurement Input		40.00%

Revenues Revenue - Additional I

Revenues Revenue - Additional Information (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019	Dec. 31, 2019
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Contract with Customer, Performance Obligation Satisfied in Previous Period	$ 5,600		$ 10,000
Revenue from Contract with Customer, Including Assessed Tax	217,857	$ 220,754	440,476	$ 425,199
Revenue, Remaining Performance Obligation, Amount	76,400		76,400
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Contract with Customer, Asset, after Allowance for Credit Loss	12,700		12,700		$ 12,600
Contract Asset, Period Increase (Decrease)			100
Deferred revenues	35,044		35,044		$ 28,443
Increase (decrease) in deferred revenues			6,600
Deferred Revenue, Revenue Recognized	6,800		21,300
Change in Estimated Variable Consideration [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Contract with Customer, Performance Obligation Satisfied in Previous Period	1,600	300	6,200	1,500
Release of Allowance [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Contract with Customer, Performance Obligation Satisfied in Previous Period	$ 4,000	$ 3,600	$ 3,800	$ 2,100

Revenues Performance Obligation

Revenues Performance Obligations Information (Details) $ in Millions	Jun. 30, 2020USD ($)
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue, Remaining Performance Obligation, Amount	$ 76.4
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2020-07-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue, Remaining Performance Obligation, Amount	$ 30.1
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Period	6 months
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2021-01-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue, Remaining Performance Obligation, Amount	$ 29.7
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Period	1 year
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2022-01-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue, Remaining Performance Obligation, Amount	$ 16.6
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Period	5 years

Earnings Per Share - Reconcilia

Earnings Per Share - Reconciliation of Basic and Diluted Earnings Per Share (Detail) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Earnings Per Share [Abstract]
Income (Loss) from Continuing Operations, Net of Tax, Attributable to Parent	$ 13,572	$ 10,569	$ (28,701)	$ 13,919
Income (Loss) from Discontinued Operations, Net of Tax, Attributable to Parent	(25)	(97)	(60)	(143)
Net income	$ 13,547	$ 10,472	$ (28,761)	$ 13,776
Weighted average common shares outstanding – basic	21,869	21,997	21,848	21,933
Weighted average common stock equivalents	247	403	0	423
Weighted average common shares outstanding – diluted	22,116	22,400	21,848	22,356
Net earnings (loss) per basic share:
Income (Loss) from Continuing Operations, Per Basic Share	$ 0.62	$ 0.48	$ (1.31)	$ 0.63
Discontinued Operation, Income (Loss) from Discontinued Operation, Net of Tax, Per Basic Share	0	0	(0.01)	0
Basic (USD per share)	0.62	0.48	(1.32)	0.63
Net earnings per diluted share:
Income (Loss) from Continuing Operations, Per Diluted Share	0.61	0.47	(1.31)	0.62
Discontinued Operation, Income (Loss) from Discontinued Operation, Net of Tax, Per Diluted Share	0	0	(0.01)	0
Diluted (USD per share)	$ 0.61	$ 0.47	$ (1.32)	$ 0.62

Earnings Per Share - Summary of

Earnings Per Share - Summary of Anti-dilutive Securities Excluded from Computation of Weighted Average Common Stock Equivalents (Detail) - shares shares in Thousands	6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Total anti-dilutive securities	58	6,258
Unvested restricted stock awards
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Total anti-dilutive securities	58	0
Convertible senior notes
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Total anti-dilutive securities	0	3,129
Warrants related to the issuance of convertible senior notes
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Total anti-dilutive securities	0	3,129

Earnings Per Share - Additional

Earnings Per Share - Additional Information (Detail) - USD ($)	3 Months Ended		6 Months Ended
	Mar. 31, 2020	Dec. 31, 2019	Jun. 30, 2020
Accelerated Share Repurchases [Line Items]
Stock Repurchased and Retired During Period, Shares	313,998
Stock Repurchased and Retired During Period, Value	$ 20,900,000		$ 20,881,000
Stock Purchase Initiated but not yet Settled, Shares		18,000
Share Repurchases Initiated but not yet Settled		$ 1,200,000
Share Repurchase Program [Member]
Accelerated Share Repurchases [Line Items]
Share repurchase authorized amount			125,000,000
Stock Repurchase Program, Remaining Authorized Repurchase Amount			$ 100,000

Financing Arrangements - Summar

Financing Arrangements - Summary of Carrying Amounts of Debt (Detail) - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019	Jun. 30, 2017
Debt Instrument [Line Items]
Net carrying amount	$ 331,590	$ 208,853
Long-term Debt, Current Maturities	(536)	(529)
Long-term debt, net of current portion	331,054	208,324
Senior secured credit facility
Debt Instrument [Line Items]
Net carrying amount	328,000	205,000
Promissory Note due 2024 [Member]
Debt Instrument [Line Items]
Net carrying amount	$ 3,590	$ 3,853	$ 5,100

Financing Arrangements Schedule

Financing Arrangements Schedule of Maturities of Long-Term Debt (Details) $ in Thousands	Jun. 30, 2020USD ($)
Debt Disclosure [Abstract]
Long-term Debt, Maturities, Repayments of Principal in Next Twelve Months	$ 266
Long-term Debt, Maturities, Repayments of Principal in Year Two	544
Long-term Debt, Maturities, Repayments of Principal in Year Three	559
Long-term Debt, Maturities, Repayments of Principal in Year Four	575
Long-term Debt, Maturities, Repayments of Principal in Year Five	$ 329,646

Financing Arrangements - Summ_2

Financing Arrangements - Summary of Interest Expense Recognized (Detail) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
	Jun. 30, 2019	Jun. 30, 2019
Interest Expense Recognized [Line Items]
Interest Expense, Debt, Excluding Amortization	$ 781	$ 1,563
Amortization of Debt Discount (Premium)	2,145	4,265
Amortization of Debt Issuance Costs	315	630
1.25% convertible senior notes due 2019
Interest Expense Recognized [Line Items]
Interest Expense, Debt	$ 3,241	$ 6,458

Financing Arrangements - Additi

Financing Arrangements - Additional Information (Detail) $ / shares in Units, shares in Millions	Mar. 16, 2020	Jan. 30, 2020	Jun. 30, 2017USD ($)	Jun. 22, 2017	Mar. 31, 2015USD ($)	Mar. 31, 2015USD ($)	Jun. 30, 2020USD ($)	Dec. 31, 2019USD ($)	Sep. 30, 2014USD ($)$ / sharesshares
Debt Instrument [Line Items]
Effective interest rate of debt									4.751%
Net carrying amount							$ 331,590,000	$ 208,853,000
Duration of LIBOR	1 month	1 month		1 month
Property and equipment, net							$ 37,082,000	38,413,000
Warrants related to the issuance of convertible senior notes
Debt Instrument [Line Items]
Common stock purchased | shares									3.1
Common stock price per share | $ / shares									$ 97.12
1.25% convertible senior notes due 2019
Debt Instrument [Line Items]
Aggregate principal amount									$ 250,000,000
Debt Instrument, Interest Rate, Stated Percentage									1.25%
1.25% convertible senior notes due 2019 | Minimum
Debt Instrument [Line Items]
Conversion price of convertible notes | $ / shares									$ 79.89
1.25% convertible senior notes due 2019 | Maximum
Debt Instrument [Line Items]
Conversion price of convertible notes | $ / shares									$ 97.12
Senior secured credit facility
Debt Instrument [Line Items]
Revolving Credit facility					$ 600,000,000	$ 600,000,000
Credit agreement expiration date					Sep. 27, 2024
Option to increase revolving credit facility					$ 150,000,000
Maximum principle amount					$ 750,000,000	$ 750,000,000
Percentage of other equity interests in domestic subsidiaries					100.00%
Percentage of other equity interests in foreign subsidiaries					65.00%
Maximum consolidated leverage ratio						3.75
Debt Instrument, Covenant, Consolidated Leverage Ratio, Additional Increase						4
Minimum consolidated interest coverage ratio					3.50	3.50
Actual consolidated leverage ratio							2.60
Actual interest coverage ratio							14.07
Net carrying amount							$ 328,000,000	$ 205,000,000
Percentage of weighted average interest rate of borrowings							2.70%	3.00%
Outstanding letters of credit							$ 1,700,000	$ 1,700,000
Unused borrowing capacity under Credit Agreement							270,300,000
Senior secured credit facility | Minimum | LIBOR
Debt Instrument [Line Items]
Interest rate on borrowings					1.125%
Senior secured credit facility | Minimum | Base Rate [Member]
Debt Instrument [Line Items]
Interest rate on borrowings					0.125%
Senior secured credit facility | Maximum | LIBOR
Debt Instrument [Line Items]
Interest rate on borrowings					1.875%
Senior secured credit facility | Maximum | Base Rate [Member]
Debt Instrument [Line Items]
Interest rate on borrowings					0.875%
Promissory Note due 2024 [Member]
Debt Instrument [Line Items]
Interest rate on borrowings			1.97%
Net carrying amount			$ 5,100,000				3,590,000	3,853,000
Debt Instrument, Maturity Date			Mar. 1, 2024
Repayment of Principal at Maturity Date			$ 1,500,000
Duration of LIBOR			1 month
Aircraft [Domain]
Debt Instrument [Line Items]
Property and equipment, net							$ 4,800,000	$ 5,100,000

Restructuring Charges - Additio

Restructuring Charges - Additional Information (Detail) - USD ($) $ in Thousands	3 Months Ended			6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Mar. 31, 2019	Jun. 30, 2020	Jun. 30, 2019	Dec. 31, 2019
Restructuring Charges [Abstract]
Restructuring charges	$ 109	$ 754		$ 1,718	$ 2,029
Operating Lease, Impairment Loss				0	$ 805
Restructuring reserve	1,142			1,142		$ 159
Other Restructuring [Member]
Restructuring Charges [Abstract]
Restructuring charges				1,200
Restructuring reserve	1,056			1,056		0
Employee Severance [Member]
Restructuring Charges [Abstract]
Restructuring charges		200		300
Restructuring reserve	7			7		68
Office Space Reductions [Member]
Restructuring Charges [Abstract]
Restructuring reserve	$ 79			79		$ 91
Corporate, Non-Segment [Member] | Employee Severance [Member]
Restructuring Charges [Abstract]
Restructuring charges			$ 200	$ 100
Middleton, Wisconsin [Member] | Office Space Reductions [Member]
Restructuring Charges [Abstract]
Restructuring charges		400
Houston, Texas [Member] | Office Space Reductions [Member]
Restructuring Charges [Abstract]
Restructuring charges		$ 100
LakeOswegoOregon [Member]
Restructuring Charges [Abstract]
Operating Lease, Impairment Loss			700
Restructuring and Related Cost, Accelerated Depreciation			$ 200

Restructuring Charges Restruc_2

Restructuring Charges Restructuring Liability Rollforward (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2020	Dec. 31, 2019
Restructuring Cost and Reserve [Line Items]
Restructuring reserve	$ 1,142	$ 159
Restructuring and Related Cost, Incurred Cost	1,599
Payments for Restructuring	(606)
Restructuring Reserve, Accrual Adjustment	(10)
Employee Severance [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring reserve	7	68
Restructuring and Related Cost, Incurred Cost	411
Payments for Restructuring	(474)
Restructuring Reserve, Accrual Adjustment	2
Office Space Reductions [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring reserve	79	91
Restructuring and Related Cost, Incurred Cost	0
Payments for Restructuring	0
Restructuring Reserve, Accrual Adjustment	(12)
Other Restructuring [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring reserve	1,056	$ 0
Restructuring and Related Cost, Incurred Cost	1,188
Payments for Restructuring	(132)
Restructuring Reserve, Accrual Adjustment	$ 0

Derivative Instruments and He_3

Derivative Instruments and Hedging Activity - Additional Information (Detail) - USD ($) $ in Millions	Mar. 16, 2020	Jan. 30, 2020	Jun. 22, 2017	Jun. 30, 2020
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Interest Rate Cash Flow Hedge Gain (Loss) to be Reclassified During Next 12 Months, Net				$ 1.7
Interest rate swap agreement, effective date	Feb. 28, 2020	Dec. 31, 2019	Aug. 31, 2017
Interest rate swap agreement, end date	Feb. 28, 2025	Dec. 31, 2024	Aug. 31, 2022
Interest rate swap agreement for a notional amount	$ 100	$ 50	$ 50
Duration of LIBOR	1 month	1 month	1 month
Percentage of fixed rate	0.885%	1.50%	1.90%
Gain (loss) reclassification from accumulated OCI to income, estimate of time to transfer				12 months

Derivative Instruments and He_4

Derivative Instruments and Hedging Activity - Fair Value Interest Rate Swaps Designated as Cash Flow Hedging Instruments (Detail) - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019
Accrued Liabilities [Member]
Fair Value interest rate swaps designated as cash flow hedging instruments
Fair Value (Derivative Asset and Liability)	$ 1,816	$ 159
Other Noncurrent Liabilities [Member]
Fair Value interest rate swaps designated as cash flow hedging instruments
Fair Value (Derivative Asset and Liability)	$ 3,309	$ 387

Fair Value of Financial Instr_3

Fair Value of Financial Instruments - Financial Assets and Liabilities Measured at Fair Value on Recurring Basis (Detail) - Fair Value, Measurements, Recurring - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019
Fair Value, Asset/Liability
Assets, fair value	$ 82,679	$ 76,987
Financial and Nonfinancial Liabilities, Fair Value Disclosure	5,125	546
Interest Rate Swap [Member]
Fair Value, Asset/Liability
Financial and Nonfinancial Liabilities, Fair Value Disclosure	5,125	546
Convertible debt investment
Fair Value, Asset/Liability
Assets, fair value	54,524	49,542
Level 2
Fair Value, Asset/Liability
Assets, fair value	28,155	27,445
Financial and Nonfinancial Liabilities, Fair Value Disclosure	5,125	546
Level 2 | Interest Rate Swap [Member]
Fair Value, Asset/Liability
Financial and Nonfinancial Liabilities, Fair Value Disclosure	5,125	546
Level 3
Fair Value, Asset/Liability
Assets, fair value	54,524	49,542
Financial and Nonfinancial Liabilities, Fair Value Disclosure	0	0
Level 3 | Interest Rate Swap [Member]
Fair Value, Asset/Liability
Financial and Nonfinancial Liabilities, Fair Value Disclosure		0
Level 3 | Convertible debt investment
Fair Value, Asset/Liability
Assets, fair value	54,524	49,542
Deferred Compensation Plan Assets [Member]
Fair Value, Asset/Liability
Assets, fair value	28,155	27,445
Deferred Compensation Plan Assets [Member] | Level 2
Fair Value, Asset/Liability
Assets, fair value	$ 28,155	$ 27,445

Fair Value of Financial Instr_4

Fair Value of Financial Instruments Fair Value of Financial Instruments - Convertible Debt Investment Reconciliation (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Dec. 31, 2019
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Payments to Acquire Investments	$ 13,000	$ 0
Fair Value, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure	82,679		$ 76,987
Convertible senior notes | Fair Value, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure	54,524		$ 49,542
Shorelight Holdings Llc [Member] | Convertible senior notes
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Other Comprehensive Income (Loss)	$ (8,018)

Fair Value of Financial Instr_5

Fair Value of Financial Instruments - Additional Information (Detail) $ in Thousands	3 Months Ended	6 Months Ended
	Mar. 31, 2019	Jun. 30, 2020USD ($)	Mar. 31, 2020USD ($)	Dec. 31, 2019USD ($)	Dec. 31, 2015USD ($)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investments in notes		$ 59,524		$ 54,541
Equity Securities without Readily Determinable Fair Value, Amount				$ 5,000
Convertible debt investment | Shorelight Holdings LLC
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investments in notes			$ 13,000		$ 27,900
Debt Instrument, Interest Rate, Stated Percentage			1.69%
Debt Instrument, Maturity Date	Jan. 17, 2024	Jan. 17, 2024
Measurement Input, Discount Rate [Member] | Convertible debt investment | Shorelight Holdings LLC
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt Instrument, Measurement Input		0.240
Measurement Input, Price Volatility [Member] | Convertible debt investment | Shorelight Holdings LLC
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt Instrument, Measurement Input		0.450

Other Comprehensive Income (L_3

Other Comprehensive Income (Loss )- Components of Other Comprehensive Loss, Net of Tax (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Equity [Abstract]
Foreign currency translation adjustment, before taxes	$ 104	$ (359)	$ (675)	$ (43)
Foreign currency translation adjustment, taxes	0	0	0	0
Foreign currency translation adjustment, net of taxes	104	(359)	(675)	(43)
Unrealized gain on investment, before taxes	(7,670)	5,319	(8,018)	8,928
Unrealized gain on investment, tax (expense) benefit	1,992	(1,404)	2,082	(2,356)
Unrealized gain on investment, net of taxes	(5,678)	3,915	(5,936)	6,572
Change in fair value, before taxes	(2,640)	(759)	(4,912)	(1,006)
Change in fair value, tax (expense) benefit	686	201	1,276	266
Change in fair value, net of taxes	(1,954)	(558)	(3,636)	(740)
Reclassification adjustments into earnings, before taxes	337	(72)	333	(146)
Reclassification adjustments into earnings, tax (expense) benefit	(88)	18	(87)	37
Reclassification adjustments into earnings, net of taxes	249	(54)	246	(109)
Net unrealized gain (loss), before taxes	(2,303)	(831)	(4,579)	(1,152)
Net unrealized gain (loss), tax (expense) benefit	598	219	1,189	303
Net unrealized gain (loss), net of taxes	(1,705)	(612)	(3,390)	(849)
Other comprehensive income (loss), before taxes	(9,869)	4,129	(13,272)	7,733
Other comprehensive income (loss), tax (expense) benefit	2,590	(1,185)	3,271	(2,053)
Accumulated Other Comprehensive (Income) Loss, Current period change	$ (7,279)	$ 2,944	$ (10,001)	$ 5,680

Other Comprehensive Income (L_4

Other Comprehensive Income (Loss )- Components of Accumulated Other Comprehensive Loss, Net of Tax (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Equity [Abstract]
Foreign Currency Translation Adjustments, Beginning balance			$ (566)
Foreign currency translation adjustments, net of tax	$ 104	$ (359)	(675)	$ (43)
Foreign Currency Translation Adjustments, Ending balance	(1,241)		(1,241)
Net Unrealized Gain (Loss) on Investment, Beginning balance			15,882
Unrealized gain (loss) on investment, net of tax	(5,678)	3,915	(5,936)	6,572
Net Unrealized Gain (Loss) on Investment, Ending balance	9,946		9,946
Net Unrealized Losses on Derivatives, Beginning balance			(380)
Unrealized loss on cash flow hedging instruments, net of tax	(1,705)	(612)	(3,390)	(849)
Net Unrealized Losses on Derivatives, Ending balance	(3,770)		(3,770)
Accumulated Other Comprehensive Income (Loss), Beginning balance			14,936
Accumulated Other Comprehensive (Income) Loss, Current period change	(7,279)	$ 2,944	(10,001)	$ 5,680
Accumulated Other Comprehensive Income (Loss), Ending balance	$ 4,935		$ 4,935

Income Taxes - Additional Infor

Income Taxes - Additional Information (Detail) - USD ($) $ in Thousands	3 Months Ended			6 Months Ended
	Jun. 30, 2020	Mar. 31, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Income Tax Disclosure [Abstract]
Effective Income Tax Rate Reconciliation, Prior Year Income Taxes, Amount		$ 800
Effective Income Tax Rate Reconciliation, Percent	20.10%		24.80%	21.40%	25.80%
Income tax expense (benefit)	$ 3,414		$ 3,477	$ (7,801)	$ 4,842
Income (loss) from continuing operations before taxes	$ 16,986		$ 14,046	$ (36,502)	$ 18,761
Effective Income Tax Rate Reconciliation, at Statutory Rate, Inclusive of State Income Tax, Percent	26.00%		26.40%	26.00%	26.40%

Commitments, Contingencies an_2

Commitments, Contingencies and Guarantees - Additional Information (Detail) - USD ($) $ in Millions	Jun. 30, 2020	Dec. 31, 2019
Senior secured credit facility
Commitments And Contingencies [Line Items]
Guarantees in the form of letters of credit	$ 1.7	$ 1.7

Segment Information - Additiona

Segment Information - Additional Information (Detail)	6 Months Ended
	Jun. 30, 2020Segment
Segment Reporting [Abstract]
Receivables from Major Customer Percentage	16.50%
Number of Operating Segments	3

Segment Information - Component

Segment Information - Components of Segment Information (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Components of Segment Information
Operating income (loss)	$ 15,954	$ 17,875	$ (29,897)	$ 24,631
Revenue from Contract with Customer, Including Assessed Tax	217,857	220,754	440,476	425,199
Reimbursable Revenues	2,970	23,534	22,273	42,151
Total revenues and reimbursable expenses	220,827	244,288	462,749	467,350
Gain (Loss) Related To Litigation Settlement And Other Operating Gains	0	485	150	941
Depreciation and amortization	6,193	7,151	12,307	14,323
Goodwill, Impairment Loss	0	0	59,816	0
Other expense (income), net	1,032	(3,829)	(6,605)	(5,870)
Income from continuing operations before income tax expense	16,986	14,046	(36,502)	18,761
Healthcare
Components of Segment Information
Revenue from Contract with Customer, Including Assessed Tax	85,356	101,939	180,934	195,621
Goodwill, Impairment Loss			0
Business Advisory
Components of Segment Information
Revenue from Contract with Customer, Including Assessed Tax	70,470	62,277	135,375	121,083
Goodwill, Impairment Loss			(59,816)
Education [Member]
Components of Segment Information
Revenue from Contract with Customer, Including Assessed Tax	62,031	56,538	124,167	108,495
Goodwill, Impairment Loss			0
Operating Segments
Components of Segment Information
Operating income (loss)	53,983	61,022	100,991	111,072
Revenue from Contract with Customer, Including Assessed Tax	217,857	220,754	440,476	425,199
Reimbursable Revenues	2,970	23,534		42,151
Total revenues and reimbursable expenses	220,827	244,288		467,350
Operating Segments | Healthcare
Components of Segment Information
Operating income (loss)	$ 21,171	$ 33,344	$ 45,221	$ 61,195
Segment operating income as a percentage of segment revenues	24.80%	32.70%	25.00%	31.30%
Revenue from Contract with Customer, Including Assessed Tax	$ 85,356	$ 101,939	$ 180,934	$ 195,621
Operating Segments | Business Advisory
Components of Segment Information
Operating income (loss)	$ 16,684	$ 11,474	$ 26,526	$ 21,055
Segment operating income as a percentage of segment revenues	23.70%	18.40%	19.60%	17.40%
Revenue from Contract with Customer, Including Assessed Tax	$ 70,470	$ 62,277	$ 135,375	$ 121,083
Operating Segments | Education [Member]
Components of Segment Information
Operating income (loss)	$ 16,128	$ 16,204	$ 29,244	$ 28,822
Segment operating income as a percentage of segment revenues	26.00%	28.70%	23.60%	26.60%
Revenue from Contract with Customer, Including Assessed Tax	$ 62,031	$ 56,538	$ 124,167	$ 108,495
Segment Reconciling Items
Components of Segment Information
Other operating expenses	31,638	36,481	58,784	73,059
Gain (Loss) Related To Litigation Settlement And Other Operating Gains	0	(485)	(150)	(941)
Depreciation and amortization	6,391	7,151	12,438	14,323
Other expense (income), net	$ (1,032)	$ 3,829	$ 6,605	$ 5,870

Segment Information Segment Inf

Segment Information Segment Information - Disaggregation of Revenue (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Including Assessed Tax	$ 217,857	$ 220,754	$ 440,476	$ 425,199
Healthcare
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Including Assessed Tax	85,356	101,939	180,934	195,621
Business Advisory
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Including Assessed Tax	70,470	62,277	135,375	121,083
Education [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Including Assessed Tax	62,031	56,538	124,167	108,495
Transferred over Time [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Including Assessed Tax	217,441	218,062	438,827	420,221
Transferred over Time [Member] | Healthcare
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Including Assessed Tax	84,941	99,606	179,400	191,248
Transferred over Time [Member] | Business Advisory
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Including Assessed Tax	70,470	62,277	135,375	121,083
Transferred over Time [Member] | Education [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Including Assessed Tax	62,030	56,179	124,052	107,890
Transferred at Point in Time [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Including Assessed Tax	416	2,692	1,649	4,978
Transferred at Point in Time [Member] | Healthcare
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Including Assessed Tax	415	2,333	1,534	4,373
Transferred at Point in Time [Member] | Business Advisory
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Including Assessed Tax	0	0	0	0
Transferred at Point in Time [Member] | Education [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Including Assessed Tax	1	359	115	605
Full-time Billable Consultants [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Including Assessed Tax	178,677	179,005	359,515	346,924
Full-time Billable Consultants [Member] | Healthcare
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Including Assessed Tax	58,221	69,548	123,666	134,366
Full-time Billable Consultants [Member] | Business Advisory
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Including Assessed Tax	67,269	60,054	129,226	117,148
Full-time Billable Consultants [Member] | Education [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Including Assessed Tax	53,187	49,403	106,623	95,410
Full-time Equivalents [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Including Assessed Tax	39,180	41,749	80,961	78,275
Full-time Equivalents [Member] | Healthcare
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Including Assessed Tax	27,135	32,391	57,268	61,255
Full-time Equivalents [Member] | Business Advisory
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Including Assessed Tax	3,201	2,223	6,149	3,935
Full-time Equivalents [Member] | Education [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Including Assessed Tax	8,844	7,135	17,544	13,085
Fixed-price Contract [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Including Assessed Tax	89,574	99,494	183,927	197,133
Fixed-price Contract [Member] | Healthcare
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Including Assessed Tax	50,803	59,681	106,588	123,265
Fixed-price Contract [Member] | Business Advisory
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Including Assessed Tax	27,374	26,688	52,767	48,360
Fixed-price Contract [Member] | Education [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Including Assessed Tax	11,397	13,125	24,572	25,508
Time-and-materials Contract [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Including Assessed Tax	98,861	87,155	194,894	170,585
Time-and-materials Contract [Member] | Healthcare
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Including Assessed Tax	14,029	14,275	28,762	27,038
Time-and-materials Contract [Member] | Business Advisory
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Including Assessed Tax	40,264	33,804	77,853	69,113
Time-and-materials Contract [Member] | Education [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Including Assessed Tax	44,568	39,076	88,279	74,434
Performance-based [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Including Assessed Tax	16,761	22,553	36,328	35,027
Performance-based [Member] | Healthcare
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Including Assessed Tax	14,480	22,021	33,401	33,831
Performance-based [Member] | Business Advisory
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Including Assessed Tax	1,586	532	2,232	1,196
Performance-based [Member] | Education [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Including Assessed Tax	695	0	695	0
Software Service, Support and Maintenance Arrangement [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Including Assessed Tax	12,661	11,552	25,327	22,454
Software Service, Support and Maintenance Arrangement [Member] | Healthcare
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Including Assessed Tax	6,044	5,962	12,183	11,487
Software Service, Support and Maintenance Arrangement [Member] | Business Advisory
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Including Assessed Tax	1,246	1,253	2,523	2,414
Software Service, Support and Maintenance Arrangement [Member] | Education [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Including Assessed Tax	$ 5,371	$ 4,337	$ 10,621	$ 8,553