Other Balance Sheet Details - Schedule of Intangible Assets and Goodwill (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Intangible Assets (Excluding Goodwill)
Balance at beginning of year	$ 53,156	$ 54,243
Foreign currency translation adjustment	4,972	(1,087)
Balance at end of year	58,128	53,156
Goodwill
Goodwill, beginning balance	39,273	40,044
Foreign currency translation adjustment	3,525	(771)
Goodwill, ending balance	$ 42,798	$ 39,273