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Accounting for Derivatives (Details 2) - Designated as a hedging instrument - Interest rate hedges - USD ($) $ in Thousands | Jun. 30, 2015 | Dec. 31, 2014
--- | --- | ---
Fair Value Asset (Liability) |  |
Total derivatives | $ (6,717) | $ (4,396)
Intangible and other assets, net |  |
Fair Value Asset (Liability) |  |
Interest rate hedges | 710 | 712
Accrued liabilities |  |
Fair Value Asset (Liability) |  |
Interest rate hedges | (5,994) | (4,958)
Other long-term liabilities |  |
Fair Value Asset (Liability) |  |
Interest rate hedges | $ (1,433) | $ (150)

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