Goodwill and Intangible Assets (Tables)

12 Months Ended

Dec. 31, 2021

Goodwill and Intangible Assets

Schedule of changes in goodwill

	Gross carrying		Accumulated
	amount		impairment		Net amount
	(in thousands)
Balance at December 31, 2021 and 2020	$	430,331	$	248,388	$	181,943

Schedule of intangible assets excluding goodwill

		December 31, 2021						December 31, 2020
	Average			Accumulated						Accumulated
	Remaining	Gross		Amortization				Gross		Amortization
	Amortization	Carrying		and		Net		Carrying		and		Net
	Period	Amount		Impairment		Amount		Amount		Impairment		Amount
	(in years)	(in thousands)
Technology	3.6	$	327,908	$	310,551	$	17,357	$	327,908	$	302,358	$	25,550
Customer relationships	7.3		146,465		132,970		13,495		146,465		130,131		16,334
Trademarks and tradenames	2.5		30,910		27,857		3,053		30,910		26,614		4,296
Other	-		3,686		3,686		—		3,686		3,681		5
Total	5.0	$	508,969	$	475,064	$	33,905	$	508,969	$	462,784	$	46,185

Schedule of estimated annual amortization expense, excluding in-process R&D for intangible assets with definite useful lives

	Amortization
	(in thousands)
2022	$	10,018
2023		8,347
2024		6,708
2025		3,136
2026		2,134
Thereafter		3,562
Total	$	33,905