Schedule of Amortizable Intangible Assets (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Finite-Lived Intangible Assets
Gross Carrying Amount	$ 389,673	$ 408,906
Accumulated Amortization	(309,571)	(307,347)
Foreign Currency Translation Adjustment	(4,467)	(620)
Net Carrying Amount	75,635	100,939
Developed technology
Finite-Lived Intangible Assets
Gross Carrying Amount	272,547	272,547
Accumulated Amortization	(223,413)	(210,479)
Foreign Currency Translation Adjustment	(4,093)	(1,610)
Net Carrying Amount	45,041	60,458
Customer Relationships
Finite-Lived Intangible Assets
Gross Carrying Amount	57,739	66,239
Accumulated Amortization	(48,921)	(54,524)
Foreign Currency Translation Adjustment	209	305
Net Carrying Amount	9,027	12,020
Trademarks and tradenames
Finite-Lived Intangible Assets
Gross Carrying Amount	59,387	70,120
Accumulated Amortization	(37,237)	(42,344)
Foreign Currency Translation Adjustment	(583)	685
Net Carrying Amount	$ 21,567	$ 28,461