Prepaid Expenses and Other Current Assets (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]
Prepaid income taxes	$ 25,161	$ 31,045
Other prepaid expenses	40,532	43,751
Other current assets	38,610	48,432
Total	$ 104,303	$ 123,228