Fair Value Measurements (Details) - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014
Assets:
Cash Equivalents	$ 7,700	$ 14,200
Interest Rate Derivative Assets, at Fair Value	440	0
Fair Value, Measurements, Recurring [Member]
Assets:
Foreign Currency Cash Flow Hedge Asset at Fair Value	18,142	567
Foreign Currency Derivative Instruments Not Designated As Hedging Instruments Asset At Fair Value	1,279	1,611
Total Assets at Fair Value	27,550	16,366
Liabilities:
Interest Rate Cash Flow Hedge Liability at Fair Value	2,871	3,768
Foreign Currency Derivative Instruments Not Designated As Hedging Instruments Liability At Fair Value	534	1,799
Total Liabilities at Fair Value	3,405	5,567
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 1 [Member]
Assets:
Cash Equivalents	0	0
Interest Rate Derivative Assets, at Fair Value	0	0
Foreign Currency Cash Flow Hedge Asset at Fair Value	0	0
Foreign Currency Derivative Instruments Not Designated As Hedging Instruments Asset At Fair Value	0	0
Total Assets at Fair Value	0	0
Liabilities:
Interest Rate Cash Flow Hedge Liability at Fair Value	0	0
Foreign Currency Derivative Instruments Not Designated As Hedging Instruments Liability At Fair Value	0	0
Total Liabilities at Fair Value	0	0
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member]
Assets:
Cash Equivalents	7,689	14,188
Interest Rate Derivative Assets, at Fair Value	440	0
Foreign Currency Cash Flow Hedge Asset at Fair Value	18,142	567
Foreign Currency Derivative Instruments Not Designated As Hedging Instruments Asset At Fair Value	1,279	1,611
Total Assets at Fair Value	27,550	16,366
Liabilities:
Interest Rate Cash Flow Hedge Liability at Fair Value	2,871	3,768
Foreign Currency Derivative Instruments Not Designated As Hedging Instruments Liability At Fair Value	534	1,799
Total Liabilities at Fair Value	3,405	5,567
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member]
Assets:
Cash Equivalents	0	0
Interest Rate Derivative Assets, at Fair Value	0	0
Foreign Currency Cash Flow Hedge Asset at Fair Value	0	0
Foreign Currency Derivative Instruments Not Designated As Hedging Instruments Asset At Fair Value	0	0
Total Assets at Fair Value	0	0
Liabilities:
Interest Rate Cash Flow Hedge Liability at Fair Value	0	0
Foreign Currency Derivative Instruments Not Designated As Hedging Instruments Liability At Fair Value	0	0
Total Liabilities at Fair Value	$ 0	$ 0