Goodwill and Intangible Assets (Tables)

12 Months Ended

Dec. 31, 2021

Goodwill and Intangible Assets Disclosure [Abstract]

Changes in carrying amount of goodwill

The changes in the carrying amount of goodwill for the years ended December 31, 2021 and 2020, are as follows (in thousands):

	2021		2020
Goodwill balance at January 1	$	363,533	$	353,193
Effect of foreign exchange		(2,078)		1,941
Additions and adjustments as the result of acquisitions		286		8,399
Goodwill balance at December 31	$	361,741	$	363,533

Other intangible assets

Other intangible assets at December 31, 2021 and 2020, consisted of the following (in thousands):

	December 31, 2021
	Gross Carrying		Accumulated		Net Carrying
	Amount		Amortization		Amount
Patents	$	26,349	$	(8,315)	$	18,034
Distribution agreements		3,250		(2,519)		731
License agreements		12,663		(7,768)		4,895
Trademarks		30,242		(15,256)		14,986
Customer lists		34,985		(31,195)		3,790
Total	$	107,489	$	(65,053)	$	42,436

	December 31, 2020
	Gross Carrying		Accumulated		Net Carrying
	Amount		Amortization		Amount
Patents	$	23,669	$	(6,460)	$	17,209
Distribution agreements		3,250		(2,319)		931
License agreements		14,453		(6,647)		7,806
Trademarks		30,273		(12,414)		17,859
Customer lists		35,154		(29,103)		6,051
Total	$	106,799	$	(56,943)	$	49,856

Estimated amortization expense

Estimated amortization expense for the developed technology and other intangible assets for the next five years consists of the following as of December 31, 2021 (in thousands):

Year Ending December 31,	Estimated Amortization Expense
2022	$	48,195
2023		47,101
2024		44,165
2025		42,396
2026		31,843