Financial Instruments (Details 2) (USD $)									12 Months Ended
	Dec. 31, 2012	Dec. 31, 2013 Derivatives designated as hedging instruments	Dec. 31, 2013 Derivatives designated as hedging instruments Foreign currency forward exchange contracts Other current assets	Dec. 31, 2013 Derivatives designated as hedging instruments Foreign currency forward exchange contracts Other current liabilities	Dec. 31, 2013 Derivatives designated as hedging instruments Cross currency interest rate swaps Other assets	Dec. 31, 2012 Derivatives designated as hedging instruments Cross currency interest rate swaps Other assets	Dec. 31, 2013 Derivatives designated as hedging instruments Cross currency interest rate swaps Other liabilities	Dec. 31, 2012 Derivatives designated as hedging instruments Cross currency interest rate swaps Other liabilities	Dec. 31, 2013 Derivatives designated as hedging instruments Minimum	Dec. 31, 2013 Derivatives designated as hedging instruments Maximum	Dec. 31, 2013 Derivatives not designated as hedging instruments Foreign currency forward exchange contracts Other current assets	Dec. 31, 2012 Derivatives not designated as hedging instruments Foreign currency forward exchange contracts Other current assets	Dec. 31, 2013 Derivatives not designated as hedging instruments Foreign currency forward exchange contracts Other current liabilities	Dec. 31, 2012 Derivatives not designated as hedging instruments Foreign currency forward exchange contracts Other current liabilities
Derivatives, Fair Value [Line Items]
Derivative, Fair Value, Net	$ (100,000)
Period over which gains and losses are reclassified to earnings									10 years	15 years
Asset Derivatives - Fair Value		26,041,000	40,000		26,001,000	39,058,000					1,216,000	853,000
Liability Derivatives - Fair Value		$ 13,427,000		$ 17,000			$ 13,410,000	$ 14,346,000					$ 3,267,000	$ 1,775,000