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Debt Obligations (Outstanding Unsecured Notes in Series of Transactions) (Details) (USD $) In Thousands, unless otherwise specified | 3 Months Ended
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Mar. 31, 2012
Schedule of principal payments of debt obligations |
Repurchase Amount | $ 4,294
Principal | 3,981
Loss | (248)
Deferred Financing Amortization | 8
2012 5.750% Notes [Member] |
Schedule of principal payments of debt obligations |
Repurchase Amount | 309
Principal | 301
Loss | (2)
Deferred Financing Amortization | 0
Debt instrument stated interest rate | 5.75%
2014 5.400% Notes |
Schedule of principal payments of debt obligations |
Repurchase Amount | 3,501
Principal | 3,255
Loss | (197)
Deferred Financing Amortization | 6
Debt instrument stated interest rate | 5.40%
2015 7.500% Notes [Member] |
Schedule of principal payments of debt obligations |
Repurchase Amount | 484
Principal | 425
Loss | (49)
Deferred Financing Amortization | $ 2
Debt instrument stated interest rate | 7.50%

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