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Income Taxes - Schedule of Company's Deferred Income Tax Assets and Liabilities (Detail) - USD ($) $ in Thousands | Dec. 31, 2015 | Dec. 31, 2014
--- | --- | ---
Deferred income tax assets: |  |
Discounting of net unpaid loss and loss adjustment expenses | $ 15,415 | $ 17,952
Unearned premiums | 14,839 | 14,788
Accrued expenses and other | 3,904 | 4,306
State income tax | 488 | 591
Accrued policyholder dividends | 719 | 438
Impaired securities | 238 | 80
Capital loss carryforward | 715 |
Accrued insurance-related assessments | 4,953 | 4,804
Total deferred tax assets | 41,271 | 42,959
Deferred income tax liabilities: |  |
Deferred policy acquisition costs | (9,012) | (8,815)
Unrealized gain (loss) on securities available-for-sale | (1,393) | (1,513)
Property and equipment and other | (696) | (331)
Salvage and subrogation | (265) | (289)
Guaranty fund related items |  | (780)
Total deferred income tax liabilities | (11,366) | (11,728)
Net deferred income taxes | $ 29,905 | $ 31,231

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