Goodwill and Intangible Assets

9 Months Ended

Sep. 30, 2021

Goodwill And Intangible Assets Disclosure [Abstract]

Goodwill and Intangible Assets

7. Goodwill and Intangible Assets

Goodwill and intangible assets with indefinite lives was $154.8 million and $147.4 million as of September 30, 2021 and December 31, 2020, respectively. Intangible assets that are subject to amortization, including the related accumulated amortization, are comprised of the following:

	September 30, 2021							December 31, 2020
	Cost		Accumulated amortization			Net carrying amount		Cost		Accumulated amortization			Net carrying amount
	(In thousands)
Customer relationships	$	132,094	$	(16,570	)	$	115,524	$	102,696	$	(7,369	)	$	95,327
Technology and other intangibles		11,430		(7,157	)		4,273		6,550		(6,523	)		27
Total	$	143,524	$	(23,727	)	$	119,797	$	109,246	$	(13,892	)	$	95,354

Amortization expense associated with identifiable intangible assets was $9.8 million and $2.0 million for the nine months ended September 30, 2021 and 2020, respectively. Annual estimated total amortization expense is $13.3 million, $17.1 million, $17.5 million, $15.4 million and $12.3 million, respectively, for 2021 through 2025.