Other Income Expense (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Component Of Other Income And Expense [Line Items]
Foreign exchange rate gains (losses), net	$ (15,244)	$ 24,787	$ 6,069
Non-controlling interest basis adjustment	0	77,400	2,783
Other-then-temporary investment impairment	(12,117)	0	0
Equity gains (losses) in unconsolidated affiliates	(1,490)	(13)	2,743
Other	(2,829)	10,912	6,083
Total	$ (31,680)	$ 113,086	$ 17,678