Intangible Assets (Tables)

3 Months Ended

Mar. 31, 2018

Goodwill and Intangible Assets Disclosure [Abstract]

Summary of Intangible Assets

Intangible assets as of March 31, 2018 and December 31, 2017 are comprised of the following (in thousands):

	March 31, 2018
	Gross amount		Accumulated amortization			Net amount
Technology	$	20,287	$	(20,287	)	$	—
Customer relationships		29,135		(29,135	)		—
Intellectual property assets		11,773		(7,483	)		4,290
Intangible assets, net	$	61,195	$	(56,905	)	$	4,290

	December 31, 2017
	Gross amount		Accumulated amortization			Net amount
Technology	$	20,194	$	(20,194	)	$	—
Customer relationships		29,002		(29,002	)		—
Intellectual property assets		11,319		(7,258	)		4,061
Intangible assets, net	$	60,515	$	(56,454	)	$	4,061