Goodwill and Other Intangible Assets (Tables)

3 Months Ended

Mar. 31, 2019

Goodwill and Intangible Assets Disclosure [Abstract]

Summary of Changes in Carrying Amounts of Goodwill by Operating Segment

The table below summarizes the changes in the carrying amount of goodwill by reportable segment:   

	Corporate Finance & Restructuring		Forensic and Litigation Consulting		Economic Consulting		Technology		Strategic Communications			Total
Balance at December 31, 2018
Goodwill	$	450,997	$	231,537	$	268,547	$	96,723	$	318,651		$	1,366,455
Accumulated goodwill impairment	—		—		—		—		(194,139		)	(194,139		)
Goodwill, net at December 31, 2018	450,997		231,537		268,547		96,723		124,512			1,172,316
Foreign currency translation adjustment and other	244		447		95		37		1,603			2,426
Balance at March 31, 2019
Goodwill	451,241		231,984		268,642		96,760		320,254			1,368,881
Accumulated goodwill impairment	—		—		—		—		(194,139		)	(194,139		)
Goodwill, net at March 31, 2019	$	451,241	$	231,984	$	268,642	$	96,760	$	126,115		$	1,174,742

Schedule of Future Amortization Expense Intangible Assets

We estimate our future amortization expense for our intangible assets with finite lives to be as follows: 

Year	As of March 31, 2019(1)
2019 (remaining)	$	5,470
2020	7,214
2021	6,685
2022	4,907
2023	1,689
Thereafter	1,811
	$	27,776

⁽¹⁾  Actual amortization expense to be reported in future periods could differ from these estimates because of new intangible asset acquisitions, changes in useful lives or other relevant factors or changes.