Income Before Income Taxes (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Schedule of Income Before Income Tax [Line Items]
Domestic	$ (5,432)	$ (73)	$ (6,709)
Foreign	31,583	21,509	13,957
Income before income taxes	$ 26,151	$ 21,436	$ 7,248