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Income Taxes (Schedule of Deferred Tax Assets and Liabilities) (Details) (USD $) In Thousands, unless otherwise specified | Dec. 31, 2013 | Dec. 31, 2012
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Income Taxes [Abstract] |  |
Federal net operating loss carry-forward | $ 33,439 | $ 29,990
State net operating loss carry-forward | 5,291 | 5,066
Federal capital loss carry-forward | 23,784 | 25,283
Unrealized loss on investment in Operating LLC | 110,382 | 113,398
Other | 873 | 1,253
Gross deferred tax asset | 173,769 | 174,990
Less: valuation allowance | (165,025) | (167,498)
Net deferred tax asset | 8,744 | 7,492
Unrealized gain on debt | (13,274) | (14,095)
Gross deferred tax (liability) | (13,274) | (14,095)
Net deferred tax asset / (liability) | (4,530) | (6,603)
Gross deferred tax asset / (liability) | $ 160,495 | $ 160,895

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