Goodwill and Intangible Assets (Tables)

3 Months Ended

Mar. 31, 2020

Goodwill and Intangible Assets Disclosure [Abstract]

Changes in carrying amount of goodwill

	2020
Goodwill balance at January 1	$	353,193
Effect of foreign exchange		(951)
Goodwill balance at March 31	$	352,242

Other intangible assets

Other intangible assets at March 31, 2020 and December 31, 2019, consisted of the following (in thousands):

	March 31, 2020
	Gross Carrying		Accumulated		Net Carrying
	Amount		Amortization		Amount
Patents	$	23,764	$	(7,396)	$	16,368
Distribution agreements		5,754		(4,656)		1,098
License agreements		22,017		(8,337)		13,680
Trademarks		30,235		(10,202)		20,033
Customer lists		39,357		(29,343)		10,014
In-process technology		2,500		—		2,500
Total	$	123,627	$	(59,934)	$	63,693

	December 31, 2019
	Gross Carrying		Accumulated		Net Carrying
	Amount		Amortization		Amount
Patents	$	22,703	$	(6,863)	$	15,840
Distribution agreements		8,012		(6,794)		1,218
License agreements		26,987		(12,746)		14,241
Trademarks		30,240		(9,477)		20,763
Covenants not to compete		964		(964)		—
Customer lists		39,984		(28,763)		11,221
In-process technology		2,500		—		2,500
Total	$	131,390	$	(65,607)	$	65,783

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 March 31, 2020 (in thousands):

Year Ending December 31,	Estimated Amortization Expense
Remaining 2020	$	44,365
2021		51,932
2022		50,625
2023		49,417
2024		46,465