Financial Instruments and Fair Value Measurements (Schedule of Cash Flow Hedges Included in Accumulated Other Comprehensive Income (Loss)) (Details) - Designated as Hedging Instrument [Member] - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Derivatives designated as cash flow hedges:
Gain (loss) recorded in other comprehensive income (loss)	$ (671)	$ (454)	$ (325)
Gain (loss) reclassified from other comprehensive income (loss) into net income (loss)	(1,060)	(566)	1,926
Forward Currency Contracts [Member]
Derivatives designated as cash flow hedges:
Gain (loss) recorded in other comprehensive income (loss)	(671)	(46)	683
Gain (loss) reclassified from other comprehensive income (loss) into net income (loss)	$ (1,060)	(310)	2,746
Commodity Contract [Member]
Derivatives designated as cash flow hedges:
Gain (loss) recorded in other comprehensive income (loss)		(408)	(1,008)
Gain (loss) reclassified from other comprehensive income (loss) into net income (loss)		$ (256)	$ (820)