Fair Value Measurements (Details) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2015	Dec. 31, 2014
Assets:
Cash Equivalents	$ 12,200us-gaap_CashEquivalentsAtCarryingValue	$ 14,200us-gaap_CashEquivalentsAtCarryingValue
Fair Value, Measurements, Recurring [Member]
Assets:
Cash Equivalents	12,167	14,188
Foreign Currency Cash Flow Hedge Asset at Fair Value	20,293	567
Foreign Currency Derivative Instruments Not Designated As Hedging Instruments Asset At Fair Value	3,037	1,611
Total Assets at Fair Value	35,497	16,366
Liabilities:
Interest Rate Cash Flow Hedge Liability at Fair Value	5,162	3,768
Foreign Currency Derivative Instruments Not Designated As Hedging Instruments Liability At Fair Value	2,197	1,799
Total Liabilities at Fair Value	7,359	5,567
Fair Value, Measurements, Recurring [Member] \| Fair Value, Inputs, Level 1 [Member]
Assets:
Cash Equivalents	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	12,167	14,188
Foreign Currency Cash Flow Hedge Asset at Fair Value	20,293	567
Foreign Currency Derivative Instruments Not Designated As Hedging Instruments Asset At Fair Value	3,037	1,611
Total Assets at Fair Value	35,497	16,366
Liabilities:
Interest Rate Cash Flow Hedge Liability at Fair Value	5,162	3,768
Foreign Currency Derivative Instruments Not Designated As Hedging Instruments Liability At Fair Value	2,197	1,799
Total Liabilities at Fair Value	7,359	5,567
Fair Value, Measurements, Recurring [Member] \| Fair Value, Inputs, Level 3 [Member]
Assets:
Cash Equivalents	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 portion of probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 820

-SubTopic 10

-Section 50

-Paragraph 2

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Amount of short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Excludes cash and cash equivalents within disposal group and discontinued operation.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Cash Equivalents

-URI http://asc.fasb.org/extlink&oid=6507016

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Fair value as of the balance sheet date of all foreign currency derivative assets designated as cash flow hedging instruments.

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Fair value as of the balance sheet date of all foreign currency derivative liabilities not designated as hedging instruments.

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Fair value as of the balance sheet date of all interest rate derivative liabilities designated as cash flow hedging instruments.

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Fair value of financial and nonfinancial obligations.

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