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Income Taxes - Schedule of Effective Income Tax Rate Reconciliation (Detail) | 12 Months Ended
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Dec. 31, 2015 | Dec. 31, 2014 | Dec. 31, 2013
Income Tax Disclosure [Abstract] |  |  |
Income tax at the federal statutory rate of 35% | 35.00% | 35.00% | 35.00%
Dividends on Preferred Securities | (8.00%) | 0.00% | 0.00%
Worthless stock deduction | 0.00% | 0.00% | 13.00%
As filed adjustments | 0.00% | 0.00% | (14505.00%)
Adjustments to NOL due to 382 limitation | 0.00% | (9.00%) | 0.00%
Change in valuation allowance | (27.00%) | (26.00%) | 14457.00%
Effective rate | 0.00% | 0.00% | 0.00%

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