Income Taxes - Income Tax Provision for Continuing Operations (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Income Tax Disclosure [Abstract]
Current- United States	$ 61,928	$ 113,648	$ 50,829
Current- Non-U.S.	18,813	81,756	74,288
Deferred- United States	(189,880)	(38,103)	(18,655)
Deferred- Non-U.S.	(17)	1,931	189
Total	$ (109,156)	$ 159,232	$ 106,651