Goodwill and Intangible Assets

6 Months Ended

Jun. 30, 2024

Goodwill and Intangible Assets Disclosure [Abstract]

Goodwill and Intangible Assets

7. Goodwill and Intangible Assets

Goodwill and intangible assets with indefinite lives were $236.7 million as of each of June 30, 2024 and December 31, 2023. Intangible assets that are subject to amortization, including the related accumulated amortization, are comprised of the following:

	June 30, 2024							December 31, 2023
	Cost		Accumulated amortization			Net carrying amount		Cost		Accumulated amortization			Net carrying amount
	(In thousands)
Customer relationships	$	139,178	$	(57,973	)	$	81,205	$	140,348	$	(50,987	)	$	89,361
Technology and other intangibles		41,130		(13,915	)		27,215		41,130		(11,383	)		29,747
Total	$	180,308	$	(71,888	)	$	108,420	$	181,478	$	(62,370	)	$	119,108

Amortization expense associated with identifiable intangible assets was $5.0 million and $4.5 million for the three months ended June 30, 2024 and 2023, respectively, and $10.0 million and $8.6 million for the six months ended June 30, 2024 and 2023. Annual estimated total amortization expense is $19.8 million, $16.9 million, $15.2 million, $13.8 million and $12.3 million for the years ended December 31, 2024 through 2028, respectively.