Income Taxes - Schedule of Provision for Income Taxes on Continuing Operations (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
U.S.
Current	$ (1,911)	$ 9,480	$ 3,620
Deferred	2,008	(3,430)	20,222
Total U.S	97	6,050	23,842
Non-U.S.
Current	1,931	2,255	4,062
Deferred	(615)	769	1,196
Total Non U.S	1,316	3,024	5,258
Income tax expense	$ 1,413	$ 9,074	$ 29,100