Fair Value Measurements (Details) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Assets:
Cash Equivalents	$ 13,402	$ 5,616
Interest Rate Cash Flow Hedge Asset at Fair Value	1,727	0
Foreign Currency Cash Flow Hedge Asset at Fair Value	1,849	0
Fair Value, Measurements, Recurring [Member]
Assets:
Foreign Currency Derivative Instruments Not Designated As Hedging Instruments Asset At Fair Value	925	1,912
Total Assets at Fair Value	17,903	7,528
Liabilities:
Interest Rate Cash Flow Hedge Liability at Fair Value	0	1,292
Foreign Currency Cash Flow Hedge Liability at Fair Value	0	106
Foreign Currency Derivative Instruments Not Designated As Hedging Instruments Liability At Fair Value	2,720	986
Liabilities at Fair Value	2,720	2,384
Fair Value, Measurements, Recurring [Member] \| Fair Value, Inputs, Level 1 [Member]
Assets:
Cash Equivalents	0	0
Interest Rate Cash Flow Hedge Asset 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 Cash Flow Hedge Liability at Fair Value	0	0
Foreign Currency Derivative Instruments Not Designated As Hedging Instruments Liability At Fair Value	0	0
Liabilities at Fair Value	0	0
Fair Value, Measurements, Recurring [Member] \| Fair Value, Inputs, Level 2 [Member]
Assets:
Cash Equivalents	13,402	5,616
Interest Rate Cash Flow Hedge Asset at Fair Value	1,727	0
Foreign Currency Cash Flow Hedge Asset at Fair Value	1,849	0
Foreign Currency Derivative Instruments Not Designated As Hedging Instruments Asset At Fair Value	925	1,912
Total Assets at Fair Value	17,903	7,528
Liabilities:
Interest Rate Cash Flow Hedge Liability at Fair Value	0	1,292
Foreign Currency Cash Flow Hedge Liability at Fair Value	0	106
Foreign Currency Derivative Instruments Not Designated As Hedging Instruments Liability At Fair Value	2,720	986
Liabilities at Fair Value	2,720	2,384
Fair Value, Measurements, Recurring [Member] \| Fair Value, Inputs, Level 3 [Member]
Assets:
Cash Equivalents	0	0
Interest Rate Cash Flow Hedge Asset 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 Cash Flow Hedge Liability at Fair Value	0	0
Foreign Currency Derivative Instruments Not Designated As Hedging Instruments Liability At Fair Value	0	0
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.

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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.

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