Derivative Instruments and Hedging Activities (Derivatives Not Designated as Hedging Instruments) (Details) - Derivatives not designated as hedging instruments - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Derivative [Line Items]
Total non-designated derivative realized (gain) loss, net	$ (85)	$ 1,372	$ (14)	$ (2,368)
Commodity options
Derivative [Line Items]
Total non-designated derivative realized (gain) loss, net	0	(74)	0	355
Foreign exchange forwards
Derivative [Line Items]
Total non-designated derivative realized (gain) loss, net	(85)	94	(14)	94
Foreign exchange options
Derivative [Line Items]
Total non-designated derivative realized (gain) loss, net	$ 0	$ 1,352	$ 0	$ (2,817)