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Fair Value Measurements (Details) (USD $) In Thousands, unless otherwise specified | Dec. 31, 2013 | Dec. 31, 2012
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Significant Other Observable Inputs (Level 2) | Recurring basis |  |
Summarizes the valuation of interest rate swaps and impaired assets |  |
Interest rate swaps asset | $ 322 |
Interest rate swaps liability | (3,374) | (9,916)
Significant Unobservable Inputs (Level 3) | Nonrecurring basis |  |
Summarizes the valuation of interest rate swaps and impaired assets |  |
Impaired long-lived assets | 5,475 | 32,342
Impaired long-lived assets-Discontinued operations | 762 | 3,312
Long-term receivable from the sale of Canadian Operations | $ 7,300 |

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