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Derivative Instruments and Hedging Activities - Additional Information (Details) (USD $)
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9 Months Ended | 12 Months Ended | |
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Sep. 30, 2013
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Dec. 31, 2011
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Dec. 31, 2012
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| Derivative Instruments and Hedging Activities Disclosure [Abstract] | |||
| Cash flow hedge loss included in accumulated other comprehensive income (loss) to be reclassified to earnings within 12 months | $ (3,800,000) | ||
| Fair market value of interest rate swaps, current liability | 15,403,000 | 705,000 | |
| Fair market value of interest rate swaps, noncurrent liability | 9,568,000 | 10,600,000 | 14,938,000 |
| Loss from hedge ineffectiveness | 200,000 | ||
| Net loss included in accumulated other comprehensive income (loss) to be reclassified into interest expense within the next 12 months | $ 4,100,000 |
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- Definition
The estimated net amount of existing gains or losses on cash flow hedges at the reporting date expected to be reclassified to earnings within the next 12 months. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Details
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- Definition
Fair values as of the balance sheet date of all liabilities resulting from contracts that meet the criteria of being accounted for as derivative instruments, and which are expected to be extinguished or otherwise disposed of within a year or the normal operating cycle, if longer, net of the effects of master netting arrangements. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Fair values as of the balance sheet date of all liabilities resulting from contracts that meet the criteria of being accounted for as derivative instruments, and which are expected to be extinguished or otherwise disposed of after one year or beyond the normal operating cycle, if longer, net of the effects of master netting arrangements. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
The net gain (loss) during the reporting period due to ineffectiveness in interest rate cash flow hedges. Recognized in earnings. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
The estimated net amount of unrealized gains or losses on interest rate cash flow hedges as of the balance sheet date expected to be reclassified to earnings within the next twelve months. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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