Derivative Financial Instruments - Assets and Liabilities Measured at Fair Value on a Recurring Basis (Details) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2015	Dec. 31, 2014
Level 2 [Member]
Assets:
Total Derivative Assets	$ 910	$ 88
Liabilities:
Total Derivative Liabilities	855	729
Recurring [Member]
Assets:
Forward Currency Contracts	910	88
Total Derivative Assets	910	88
Liabilities:
Interest Rate Swap	855	729
Total Derivative Liabilities	855	729
Recurring [Member] | Level 1 [Member]
Assets:
Forward Currency Contracts	0	0
Total Derivative Assets	0	0
Liabilities:
Interest Rate Swap	0	0
Total Derivative Liabilities	0	0
Recurring [Member] | Level 2 [Member]
Assets:
Forward Currency Contracts	910	88
Total Derivative Assets	910	88
Liabilities:
Interest Rate Swap	855	729
Total Derivative Liabilities	855	729
Recurring [Member] | Level 3 [Member]
Assets:
Forward Currency Contracts	0	0
Total Derivative Assets	0	0
Liabilities:
Interest Rate Swap	0	0
Total Derivative Liabilities	$ 0	$ 0