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Fair Value Measurement (Level 3 Assets) (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2015 | Dec. 31, 2014
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation: |  |
Beginning Balance | $ 22,875 | $ 28,328
Included in earnings, as a part of: |  |
Included in other comprehensive income | (393) | 719
Purchases | 5,196 | 8,201
Sales | (5,896) | (3,618)
Transfers in | 6,640 | 2,424
Transfers out | (12,570) | (13,138)
Ending Balance | 15,257 | 22,875
Change in unrealized gains (losses) included in earnings for the above period for Level 3 assets held at period-end | 0 | 0
U.S. Government-sponsored enterprise obligations [Member] |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation: |  |
Beginning Balance | 0 | 0
Included in earnings, as a part of: |  |
Included in other comprehensive income | 0 | 1
Purchases | 0 | 1,000
Sales | 0 | 0
Transfers in | 0 | 0
Transfers out | 0 | (1,001)
Ending Balance |  | 0
Change in unrealized gains (losses) included in earnings for the above period for Level 3 assets held at period-end | 0 | 0
State and municipal bonds [Member] |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation: |  |
Beginning Balance | 5,025 | 7,338
Included in earnings, as a part of: |  |
Included in other comprehensive income | (459) | (29)
Purchases | 0 | 1,861
Sales | 0 | (1,731)
Transfers in | 0 | 2,119
Transfers out | (4,566) | (4,424)
Ending Balance |  | 5,025
Change in unrealized gains (losses) included in earnings for the above period for Level 3 assets held at period-end | 0 | 0
Corporate debt [Member] |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation: |  |
Beginning Balance | 13,081 | 14,176
Included in earnings, as a part of: |  |
Included in other comprehensive income | 73 | 688
Purchases | 1,996 | 2,000
Sales | (1,896) | (1,826)
Transfers in | 6,640 | 0
Transfers out | (5,049) | (2,025)
Ending Balance | 14,500 | 13,081
Change in unrealized gains (losses) included in earnings for the above period for Level 3 assets held at period-end | 0 | 0
Asset-backed securities [Member] |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation: |  |
Beginning Balance | 4,769 | 6,814
Included in earnings, as a part of: |  |
Included in other comprehensive income | (7) | 59
Purchases | 1,500 | 3,340
Sales | (4,000) | (61)
Transfers in | 0 | 305
Transfers out | (1,494) | (5,688)
Ending Balance | 757 | 4,769
Change in unrealized gains (losses) included in earnings for the above period for Level 3 assets held at period-end | 0 | 0
Equity Securities and Other [Member] |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation: |  |
Beginning Balance | 0 | 0
Included in earnings, as a part of: |  |
Included in other comprehensive income | 0 | 0
Purchases | 1,700 | 0
Sales | 0 | 0
Transfers in | 0 | 0
Transfers out | (1,461) | 0
Ending Balance |  | 0
Change in unrealized gains (losses) included in earnings for the above period for Level 3 assets held at period-end | 0 | 0
Net investment income [Member] |  |
Included in earnings, as a part of: |  |
Net investment income | 18 | 51
Net investment income [Member] | U.S. Government-sponsored enterprise obligations [Member] |  |
Included in earnings, as a part of: |  |
Net investment income | 0 | 0
Net investment income [Member] | State and municipal bonds [Member] |  |
Included in earnings, as a part of: |  |
Net investment income | 0 | (14)
Net investment income [Member] | Corporate debt [Member] |  |
Included in earnings, as a part of: |  |
Net investment income | 18 | 65
Net investment income [Member] | Asset-backed securities [Member] |  |
Included in earnings, as a part of: |  |
Net investment income | 0 | 0
Net investment income [Member] | Equity Securities and Other [Member] |  |
Included in earnings, as a part of: |  |
Net investment income | 0 | 0
Equity in earnings of unconsolidated subsidiaries [Member] |  |
Included in earnings, as a part of: |  |
Net investment income | (83) | 0
Equity in earnings of unconsolidated subsidiaries [Member] | U.S. Government-sponsored enterprise obligations [Member] |  |
Included in earnings, as a part of: |  |
Net investment income | 0 | 0
Equity in earnings of unconsolidated subsidiaries [Member] | State and municipal bonds [Member] |  |
Included in earnings, as a part of: |  |
Net investment income | 0 | 0
Equity in earnings of unconsolidated subsidiaries [Member] | Corporate debt [Member] |  |
Included in earnings, as a part of: |  |
Net investment income | 0 | 0
Equity in earnings of unconsolidated subsidiaries [Member] | Asset-backed securities [Member] |  |
Included in earnings, as a part of: |  |
Net investment income | 0 | 0
Equity in earnings of unconsolidated subsidiaries [Member] | Equity Securities and Other [Member] |  |
Included in earnings, as a part of: |  |
Net investment income | (83) | 0
Net realized investment gains (losses) [Member] |  |
Included in earnings, as a part of: |  |
Net investment income | (530) | (92)
Net realized investment gains (losses) [Member] | U.S. Government-sponsored enterprise obligations [Member] |  |
Included in earnings, as a part of: |  |
Net investment income | 0 | 0
Net realized investment gains (losses) [Member] | State and municipal bonds [Member] |  |
Included in earnings, as a part of: |  |
Net investment income | 0 | (95)
Net realized investment gains (losses) [Member] | Corporate debt [Member] |  |
Included in earnings, as a part of: |  |
Net investment income | (363) | 3
Net realized investment gains (losses) [Member] | Asset-backed securities [Member] |  |
Included in earnings, as a part of: |  |
Net investment income | (11) | 0
Net realized investment gains (losses) [Member] | Equity Securities and Other [Member] |  |
Included in earnings, as a part of: |  |
Net investment income | $ (156) | $ 0

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