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Income Taxes (Deferred Tax Assets And Liabilities) (Details) - USD ($) $ in Thousands | Dec. 31, 2015 | Dec. 31, 2014
--- | --- | ---
Deferred tax assets: |  |
20% of net unearned premium | $ 75,406 | $ 71,907
Discounting of loss reserves and salvage and subrogation recoverable for tax purposes | 9,518 | 11,100
Write-down of impaired investments | 857 | 942
Tax credit carryforward | 36,349 | 31,198
Expense accruals | 11,264 | 13,395
Other deferred tax assets | 9,596 | 7,448
Total gross deferred tax assets | 142,990 | 135,990
Deferred tax liabilities: |  |
Deferred acquisition costs | (70,617) | (69,021)
Tax liability on net unrealized gain on securities carried at fair value | (23,095) | (47,333)
Tax depreciation in excess of book depreciation | (10,742) | (9,414)
Undistributed earnings of insurance subsidiaries | (4,022) | (4,486)
Tax amortization in excess of book amortization | (2,514) | (1,982)
Other deferred tax liabilities | (8,769) | (9,087)
Total gross deferred tax liabilities | (119,759) | (141,323)
Net deferred tax assets | 23,231 |
Net deferred tax liabilities | $ 0 | $ (5,333)

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