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Financial Instruments - Fair Value of Interest Rate Derivatives by Balance Sheet Location (Details) (Interest Rate Contract [Member], Non-current Liabilities [Member], USD $)
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Dec. 31, 2012
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Dec. 31, 2011
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Designated as Hedging Instrument [Member]
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| Derivatives, Fair Value [Line Items] | ||
| Interest Rate Derivative Liabilities, at Fair Value | $ 21,290,000 | $ 0 |
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Not Designated as Hedging Instrument [Member]
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| Derivatives, Fair Value [Line Items] | ||
| Interest Rate Derivative Liabilities, at Fair Value | $ 5,134,000 | $ 0 |
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- Details
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- Definition
Fair value as of the balance sheet date of interest rate derivative liabilities, which includes all such derivative instruments in hedging and nonhedging relationships that are recognized as liabilities. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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