Income Before Income Taxes (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Schedule of Income Before Income Tax [Line Items]
Domestic	$ 27,545	$ (5,432)	$ (73)
Foreign	31,672	31,583	21,509
Income before income taxes	$ 59,217	$ 26,151	$ 21,436