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Long-term Debt, Lease Obligations and Interest Rate Caps (Details 2) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2012
Long-term Debt [Member]
Equipment Capital Leases
2013	$ 832
2014	966
2015	97,786
Total	99,584
Capital Lease Obligations [Member]
Equipment Capital Leases
2013	2,664
2014	2,343
2015	737
Total	$ 5,744

Carrying amount of long-term debt, net of unamortized discount or premium, including current and noncurrent amounts. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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