Accounting for Derivatives (Details 2) - Designated as a hedging instrument - Interest rate hedges - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014
Fair Value Asset (Liability)
Total derivatives, Fair value	$ (5,984)	$ (4,396)
Intangible and other assets, net
Fair Value Asset (Liability)
Derivatives asset designated as hedging instruments, Fair value	45	712
Accrued liabilities
Fair Value Asset (Liability)
Derivatives liability designated as hedging instruments, Fair value	(4,608)	(4,958)
Other long-term liabilities
Fair Value Asset (Liability)
Derivatives liability designated as hedging instruments, Fair value	$ (1,421)	$ (150)

Fair value of financial asset or other 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, not subject to a master netting arrangement.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 20
-Section 55
-Paragraph 22
-URI http://asc.fasb.org/extlink&oid=51825145&loc=SL20226052-175313

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 20
-Section 50
-Paragraph 3
-Subparagraph (d)
-URI http://asc.fasb.org/extlink&oid=51824906&loc=SL20225862-175312

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- Definition

Fair values as of the balance sheet date of the net amount of all assets and liabilities resulting from contracts that meet the criteria of being accounted for as derivative instruments.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 45
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=6945355&loc=d3e41228-113958

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- Definition

Fair value of 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, not subject to a master netting arrangement.

+ References

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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