Intangible Assets and Goodwill - Schedule of Intangible Assets Recognized in Connection with Product Acquisitions (Detail) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Business Combinations [Abstract]
Beginning Balance	$ 197,514	$ 198,261	$ 186,467
Additions	10,524	12,675	25,368
Write offs		(41)	(264)
Impact of movement in exchange rates	(710)	(637)	(1,158)
Amortization expense	(13,713)	(12,744)	(12,152)
Ending Balance	197,841	197,514	198,261
Measurement period adjustment	4,226
Goodwill Beginning Balance	52,108	46,673	25,906
Additions during fiscal year		8,830	22,652
Other		617
Impact of movement in exchange rates	(1,794)	(4,012)	(1,885)
Goodwill Ending Balance	46,260	52,108	$ 46,673
Measurement period adjustment	(4,054)
Intangible assets and goodwill at Year End	$ 244,101	$ 249,622

The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method.

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Amount after amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

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Amount of increase (decrease) to assets, excluding financial assets and goodwill, lacking physical substance with a finite life for purchase accounting adjustments.

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Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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