Segment Reporting (Tables)

12 Months Ended

Dec. 31, 2017

Segment Reporting [Abstract]

Revenues and Adjusted Segment Earnings before Interest, Taxes, Depreciation and Amortization for Reportable Segments

The table below presents revenues and Adjusted Segment EBITDA for our reportable segments for the years ended December 31, 2017, 2016 and 2015.

	Year Ended December 31,
	2017		2016		2015
Revenues
Corporate Finance & Restructuring	$	482,041	$	483,269	$	440,398
Forensic and Litigation Consulting	462,324		457,734		482,269
Economic Consulting	496,029		500,487		447,909
Technology	174,850		177,720		218,599
Strategic Communications	192,488		191,184		189,974
Total revenues	$	1,807,732	$	1,810,394	$	1,779,149
Adjusted Segment EBITDA
Corporate Finance & Restructuring	$	82,863	$	97,688	$	90,101
Forensic and Litigation Consulting	72,705		57,882		64,267
Economic Consulting	61,964		74,102		62,330
Technology	22,171		25,814		39,010
Strategic Communications	27,732		30,458		27,727
Total Adjusted Segment EBITDA	$	267,435	$	285,944	$	283,435

Reconciliation of Net Income to Adjusted Segment Earnings before Interest, Taxes, Depreciation and Amortization

The table below reconciles Net income to Total Adjusted Segment EBITDA. Unallocated corporate expenses primarily include indirect costs related to centrally managed administrative functions that have not been allocated to the segments. These administrative costs include costs related to executive management, legal, corporate office support costs, information technology, accounting, marketing, human resources, and company-wide business development and strategy functions.

	Year Ended December 31,
	2017			2016			2015
Net income	$	107,962		$	85,520		$	66,053
Add back:
Income tax provision (benefit)	(20,857		)	42,283			39,333
Interest income and other	(3,752		)	(10,466		)	(3,232		)
Interest expense	25,358			24,819			42,768
Loss on early extinguishment of debt	—			—			19,589
Unallocated corporate expenses	83,140			88,182			81,348
Segment depreciation expense	27,112			34,064			27,717
Amortization of intangible assets	10,563			10,306			11,726
Segment special charges	37,207			9,833			—
Remeasurement of acquisition-related contingent consideration	702			1,403			(1,867		)
Total Adjusted Segment EBITDA	$	267,435		$	285,944		$	283,435

Schedule of Assets by Segments

The table below presents assets by segment. Segment assets primarily include accounts and notes receivable, fixed assets purchased specifically for the segment, goodwill and other intangible assets.

	December 31,
	2017		2016
Corporate Finance & Restructuring	$	726,176	$	681,919
Forensic and Litigation Consulting	401,905		400,047
Economic Consulting	501,471		496,757
Technology	195,399		189,704
Strategic Communications	215,083		214,160
Total segment assets	2,040,034		1,982,587
Unallocated Corporate assets	217,207		242,781
Total assets	$	2,257,241	$	2,225,368

Schedule of Revenues Based on Location of Legal Entity and Information on Long-Lived Assets and Net Assets

The table below details information on our revenues for the years ended December 31, 2017, 2016 and 2015. Revenues have been attributed to location based on the location of the legal entity generating the revenues.

	Year Ended December 31,
	2017		2016		2015
United States	$	1,262,682	$	1,298,492	$	1,281,444
United Kingdom	251,843		246,236		236,925
All other foreign countries	293,207		265,666		260,780
Total revenues	$	1,807,732	$	1,810,394	$	1,779,149

We do not have a single customer that represents 10% or more of our consolidated revenues.

The table below details information on our long-lived assets and net assets attributed to geographic location based on the location of the legal entity holding the assets.

	December 31, 2017						December 31, 2016
	United States		United Kingdom		All Other Foreign Countries		United States		United Kingdom		All Other Foreign Countries
Property and equipment, net of accumulated depreciation	$	52,709	$	14,761	$	7,605	$	39,584	$	15,312	$	6,960
Net assets	$	654,010	$	207,885	$	330,076	$	709,634	$	193,276	$	304,448