Other Intangible Assets

6 Months Ended

Jun. 30, 2018

Goodwill and Intangible Assets Disclosure [Abstract]

Other Intangible Assets

Other Intangible Assets

Intangible assets consist of the following components:

	As of
	June 30, 2018
	Gross Carrying Amount		Accumulated Amortization			Net Amount
Customer lists/relationships	$	64,323	$	(35,387	)	$	28,936
Patents	10,319		(10,319		)	—
Technology and other intangibles	44,460		(12,039		)	32,421
In process research and development	2,200		—			2,200
Other intangible assets, net	$	121,302	$	(57,745	)	$	63,557
Amortization expense for the three months ended June 30, 2018			$	1,704
Amortization expense for the six months ended June 30, 2018			$	3,424

	As of
	December 31, 2017
	Gross Carrying Amount		Accumulated Amortization			Net Amount
Customer lists/relationships	$	64,323	$	(33,685	)	$	30,638
Patents	10,319		(10,319		)	—
Technology and other intangibles	44,460		(10,355		)	34,105
In process research and development	2,200		—			2,200
Other intangible assets, net	$	121,302	$	(54,359	)	$	66,943
Amortization expense for the three months ended June 30, 2017			$	1,613
Amortization expense for the three months ended June 30, 2017			$	3,149

Remaining amortization expense for other intangible assets as of June 30, 2018 is as follows: 

	Amortization expense
2018	$	3,377
2019	6,754
2020	6,624
2021	6,467
2022	6,230
Thereafter	34,105
Total amortization expense	$	63,557