Goodwill and Intangible Assets - Finite Lived Intangible Assets Amortization Expense (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Goodwill And Intangible Assets Disclosure [Abstract]
Intangible assets – finite life, net at beginning of period	$ 29,637	$ 31,283
Amortization expense	(1,685)	(1,713)
Transfers from indefinite life classification	3,150
Foreign currency adjustments	(81)	(110)
Intangible assets – finite life, net at end of period	$ 31,021	$ 29,460