Other Income (Expense) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Other Income and Expenses [Abstract]
Foreign Currency Transaction Gain (Loss), before Tax	$ 330	$ 4,360	$ 15,784	$ (14,170)
Other Expense Disclosure, Nonoperating	-304	-12	-246	478