Goodwill and Other Intangible Assets

12 Months Ended

Dec. 31, 2017

Goodwill and Intangible Assets Disclosure [Abstract]

Goodwill

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, 2015
Goodwill	$	441,548		$	235,211		$	269,341		$	117,888		$	328,449		$	1,392,437
Accumulated goodwill impairment	—			—			—			—			(194,139		)	(194,139		)
Goodwill, net at December 31, 2015	441,548			235,211			269,341			117,888			134,310			1,198,298
Acquisitions ⁽¹⁾	—			—			—			—			218			218
Foreign currency translation adjustment and other	(882		)	(4,667		)	(1,132		)	(281		)	(11,553		)	(18,515		)
Balance at December 31, 2016
Goodwill	440,666			230,544			268,209			117,607			317,114			1,374,140
Accumulated goodwill impairment	—			—			—			—			(194,139		)	(194,139		)
Goodwill, net at December 31, 2016	440,666			230,544			268,209			117,607			122,975			1,180,001
Acquisitions ⁽²⁾	11,900			—			—			—			—			11,900
Foreign currency translation adjustment and other	2,250			3,175			786			133			6,558			12,902
Balance at December 31, 2017
Goodwill	454,816			233,719			268,995			117,740			323,672			1,398,942
Accumulated goodwill impairment	—			—			—			—			(194,139		)	(194,139		)
Goodwill, net at December 31, 2017	$	454,816		$	233,719		$	268,995		$	117,740		$	129,533		$	1,204,803


⁽¹⁾	Includes adjustments during the purchase price allocation period.


⁽²⁾	During the year ended December 31, 2017, we made an initial payment of $8.9 million at closing to acquire a restructuring business within our Corporate Finance & Restructuring segment. We recorded $11.9 million in goodwill as a result of the acquisition. We have included the results of the acquired business' operations in the Corporate Finance & Restructuring segment since its acquisition date.

Other Intangible Assets

Other intangible assets were as follows:



		December 31, 2017						December 31, 2016
	Weighted Average Useful Life in Years	Gross Carrying Amount		Accumulated Amortization		Net Carrying Amount		Gross Carrying Amount		Accumulated Amortization		Net Carrying Amount
Amortizing intangible assets
Customer relationships	13.7	$	117,192	$	80,523	$	36,669	$	119,736	$	75,212	$	44,524
Non-competition agreements ⁽¹⁾	N/A	—		—		—		1,263		1,246		17
Acquired software	9.8	3,264		1,383		1,881		3,171		1,292		1,879
Trade names ⁽¹⁾	N/A	—		—		—		360		260		100
	13.6	120,456		81,906		38,550		124,530		78,010		46,520
Non-amortizing intangible assets
Trade names	Indefinite	5,600		—		5,600		5,600		—		5,600
Total		$	126,056	$	81,906	$	44,150	$	130,130	$	78,010	$	52,120


⁽¹⁾	These intangible assets were fully amortized and written off during the year ended December 31, 2017.

Other intangible assets with finite lives are amortized over their estimated useful lives. We recorded amortization expense of $10.6 million, $10.3 million and $11.7 million during the years ended December 31, 2017, 2016 and 2015, respectively.

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



	As of December 31, 2017 ⁽¹⁾
Year	As of December 31, 2017 ⁽¹⁾
2018	$	8,252
2019	7,589
2020	7,413
2021	6,797
2022	4,973
Thereafter	3,526
	$	38,550


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

- Definition

The entire disclosure for the aggregate amount of goodwill and a description of intangible assets, which may include (a) for amortizable intangible assets (also referred to as finite-lived intangible assets), the carrying amount, the amount of any significant residual value, and the weighted-average amortization period, (b) for intangible assets not subject to amortization (also referred to as indefinite-lived intangible assets), the carrying amount, and (c) the amount of research and development assets acquired and written off in the period, including the line item in the income statement in which the amounts written off are aggregated, if not readily apparent from the income statement. Also discloses (a) for amortizable intangibles assets in total and by major class, the gross carrying amount and accumulated amortization, the total amortization expense for the period, and the estimated aggregate amortization expense for each of the five succeeding fiscal years, (b) for intangible assets not subject to amortization the carrying amount in total and by major class, and (c) for goodwill, in total and for each reportable segment, the changes in the carrying amount of goodwill during the period (including the aggregate amount of goodwill acquired, the aggregate amount of impairment losses recognized, and the amount of goodwill included in the gain (loss) on disposal of a reporting unit). If any part of goodwill has not been allocated to a reportable segment, discloses the unallocated amount and the reasons for not allocating. For each impairment loss recognized related to an intangible asset (excluding goodwill), discloses: (a) a description of the impaired intangible asset and the facts and circumstances leading to the impairment, (b) the amount of the impairment loss and the method for determining fair value, (c) the caption in the income statement or the statement of activities in which the impairment loss is aggregated, and (d) the segment in which the impaired intangible asset is reported. For each goodwill impairment loss recognized, discloses: (a) a description of the facts and circumstances leading to the impairment, (b) the amount of the impairment loss and the method of determining the fair value of the associated reporting unit, and (c) if a recognized impairment loss is an estimate not finalized and the reasons why the estimate is not final. May also disclose the nature and amount of any significant adjustments made to a previous estimate of an impairment loss.

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