Derivative Instruments and Hedging Activities (Offsetting Assets and Liabilities) (Details) - Foreign Exchange Forward [Member] - USD ($) $ in Thousands	Sep. 30, 2016	Dec. 31, 2015
Derivative Asset, Fair Value, Amount Offset Against Collateral [Abstract]
Gross Amounts of Recognized Assets	$ 81,671	$ 158,054
Gross Amounts Offset in the Condensed Consolidated Balance Sheet	0	0
Amounts of Assets Presented in the Condensed Consolidated Balance Sheet	81,671	158,054
Derivative Financial Instruments	(49,423)	(10,421)
Cash Collateral Received	0	0
Net Amount	32,248	147,633
Derivative Liability, Fair Value, Amount Offset Against Collateral [Abstract]
Gross Amounts of Recognized Liabilities	(75,079)	(10,421)
Gross Amounts Offset in the Condensed Consolidated Balance Sheet	0	0
Amounts of Liabilities Presented in the Condensed Consolidated Balance Sheet	(75,079)	(10,421)
Derivative Financial Instruments	49,423	10,421
Cash Collateral Pledged	0	0
Net Amount	$ (25,656)	$ 0