Other Income (Expense) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Other Income and Expenses [Abstract]
Foreign Currency Transaction Gain, before Tax	$ 15,454	$ (18,530)
Other income (expense), net	$ 15,512	$ (18,040)
Other Expense Disclosure, Nonoperating	58	490