Goodwill and Intangible Assets (Tables)

3 Months Ended

Mar. 31, 2021

Goodwill And Intangible Assets Disclosure [Abstract]

Summary of Company's Intangible Assets

Intangible assets that are subject to amortization, including the related accumulated amortization, are comprised of the following:

	March 31, 2021							December 31, 2020
	Cost		Accumulated amortization			Net carrying amount		Cost		Accumulated amortization			Net carrying amount
	(In thousands)
Customer relationships	$	100,962	$	(10,044	)	$	90,918	$	102,696	$	(7,369	)	$	95,327
Technology and other intangibles		6,550		(6,523	)		27		6,550		(6,523	)		27
Total	$	107,512	$	(16,567	)	$	90,945	$	109,246	$	(13,892	)	$	95,354