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Income Taxes - Components of Net Deferred Tax Asset (Detail) (USD $) In Thousands, unless otherwise specified | 12 Months Ended |
--- | --- | ---
Dec. 31, 2013 | Dec. 31, 2012
Deferred federal income tax asset: |  |
Losses and loss adjustments expenses | $ 143 | $ 2,832
Net operating loss carryforward | 2,087,490 | 2,088,461
Accruals and reserves | 16,387 | 18,276
As filed adjustments | 130 |
Capital loss carryforward | 52,756 |
Total deferred federal income tax asset | 2,156,906 | 2,109,569
Deferred federal income tax liabilities: |  |
Net unrealized gains on investments | 425 | 1,946
Total deferred federal income tax liabilities | 425 | 1,946
Less: Valuation allowance | 2,156,481 | 2,107,623
Net deferred federal income tax asset |  |

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