Goodwill and Other Intangible Assets

6 Months Ended

Jun. 30, 2020

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, 2019
Goodwill	$	478,842		$	232,120		$	268,677		$	96,770		$	320,497		$	1,396,906
Accumulated goodwill impairment	—			—			—			—			(194,139		)	(194,139		)
Goodwill, net at December 31, 2019	478,842			232,120			268,677			96,770			126,358			1,202,767
Foreign currency translation adjustment and other	(285		)	(1,879		)	(322		)	(88		)	(4,031		)	(6,605		)
Balance at June 30, 2020
Goodwill	478,557			230,241			268,355			96,682			316,466			1,390,301
Accumulated goodwill impairment	—			—			—			—			(194,139		)	(194,139		)
Goodwill, net at June 30, 2020	$	478,557		$	230,241		$	268,355		$	96,682		$	122,327		$	1,196,162

Other Intangible Assets

Other intangible assets were as follows:



	June 30, 2020						December 31, 2019
	Gross Carrying Amount		Accumulated Amortization		Net Carrying Amount		Gross Carrying Amount		Accumulated Amortization		Net Carrying Amount
Amortizing intangible assets
Customer relationships	$	97,849	$	78,935	$	18,914	$	99,613	$	76,808	$	22,805
Trademarks	9,898		1,481		8,417		9,855		653		9,202
Acquired software and other	3,401		2,244		1,157		3,386		2,061		1,325
	111,148		82,660		28,488		112,854		79,522		33,332
Non-amortizing intangible assets
Trademarks	5,100		—		5,100		5,100		—		5,100
Total	$	116,248	$	82,660	$	33,588	$	117,954	$	79,522	$	38,432

Other intangible assets with finite lives are amortized over their estimated useful lives. We recorded amortization expense of $2.3 million and $4.6 million for the three and six months ended June 30, 2020, respectively, and $1.9 million and $3.7 million for the three and six months ended June 30, 2019, respectively.

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



Year	As of June 30, 2020 ⁽¹⁾
2020 (remaining)	$	4,650
2021	8,792
2022	7,002
2023	3,607
2024	2,204
Thereafter	2,233
	$	28,488

⁽¹⁾

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