Income Tax Provision (Benefit) for Federal, and State and Local Income Taxes (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Current:
Current income tax expense, Federal	$ (1,012)	$ (609)
Current income tax expense, State and local	(10)	(61)
Current income tax expense, Foreign	9,185	9,212
Total current	8,163	8,542
Deferred:
Deferred income tax expense, Federal	23	(4,950)
Deferred income tax expense, State and local	(103)	(1,967)
Deferred income tax expense, Foreign		4,913
Total deferred	(80)	(2,004)
Total provision (benefit)	$ 8,083	$ 6,538