Goodwill and Intangible Assets (Tables)

12 Months Ended

Dec. 31, 2017

Goodwill And Intangible Assets Disclosure [Abstract]

Summary of Company's Intangible Assets

Goodwill and intangible assets with indefinite lives was $59.7 million as of both December 31, 2017 and 2016. Intangible assets that are subject to amortization, including the related accumulated amortization, are comprised of the following:

	December 31, 2017							December 31, 2016
	Cost		Accumulated amortization			Net carrying amount		Cost		Accumulated amortization			Net carrying amount
	(In thousands)
Technology	$	5,770	$	(5,770	)	$	—	$	5,770	$	(5,770	)	$	—
Customer relationships		5,647		(2,301	)		3,346		5,628		(1,897	)		3,731
Non-competition agreements		380		(380	)		—		380		(380	)		—
Tradenames		370		(370	)		—		370		(370	)		—
Total	$	12,167	$	(8,821	)	$	3,346	$	12,148	$	(8,417	)	$	3,731