Fair Value Measurements Fair Value Measurements (Detail 1) (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
ASSETS
Cash Equivalents, at Carrying Value	$ 21,500	$ 18,800
Foreign Currency Cash Flow Hedge Asset at Fair Value	0	7,056
Fair Value, Measurements, Recurring
ASSETS
Foreign currency forward contracts not designated as hedging instrument	791	1,166
Assets, Fair Value Disclosure	22,304	26,977
Liabilities [Abstract]
Interest Rate Derivative Liabilities, at Fair Value	3,630	4,092
Foreign currency forward contracts not designated as hedging instrument	2,123	625
Derivative Liability, Fair Value, Gross Liability	5,753	4,717
Fair Value, Measurements, Recurring \| Level 1
ASSETS
Cash Equivalents, at Carrying Value	0	0
Foreign Currency Cash Flow Hedge Asset at Fair Value	0	0
Foreign currency forward contracts not designated as hedging instrument	0	0
Assets, Fair Value Disclosure	0	0
Liabilities [Abstract]
Interest Rate Derivative Liabilities, at Fair Value	0	0
Foreign currency forward contracts not designated as hedging instrument	0	0
Derivative Liability, Fair Value, Gross Liability	0	0
Fair Value, Measurements, Recurring \| Level 2
ASSETS
Cash Equivalents, at Carrying Value	21,513	18,755
Foreign Currency Cash Flow Hedge Asset at Fair Value	0	7,056
Foreign currency forward contracts not designated as hedging instrument	791	1,166
Assets, Fair Value Disclosure	22,304	26,977
Liabilities [Abstract]
Interest Rate Derivative Liabilities, at Fair Value	3,630	4,092
Foreign currency forward contracts not designated as hedging instrument	2,123	625
Derivative Liability, Fair Value, Gross Liability	5,753	4,717
Fair Value, Measurements, Recurring \| Level 3
ASSETS
Cash Equivalents, at Carrying Value	0	0
Foreign Currency Cash Flow Hedge Asset at Fair Value	0	0
Foreign currency forward contracts not designated as hedging instrument	0	0
Assets, Fair Value Disclosure	0	0
Liabilities [Abstract]
Interest Rate Derivative Liabilities, at Fair Value	0	0
Foreign currency forward contracts not designated as hedging instrument	0	0
Derivative Liability, Fair Value, Gross Liability	$ 0	$ 0

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Fair value portion of probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
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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
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-SubTopic 10
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Fair value, before effects of master netting arrangements, of a financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes liabilities elected not to be offset. Excludes liabilities not subject to a master netting arrangement.

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-Publisher FASB
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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 assets not designated as 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 derivatives designated as cash flow hedging instruments.

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