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v3.20.1

Securities (Summary of Book Values and Fair Values of Investment Securities) (Details) - USD ($) $ in Thousands | Mar. 31, 2020 | Dec. 31, 2019
--- | --- | ---
Fair Value |  |
Amortized Cost | $ 775,962 | $ 812,202
Fair Value | 806,470 | 821,945
Unrealized Gains | 30,790 | 10,505
Unrealized (Losses) | (282) | (762)
Debt Securities, Held-to-maturity, Maturity [Abstract] |  |
Amortized Cost | 61,303 | 67,932
Fair Value | 62,385 | 68,333
Unrealized Gains | 1,088 | 410
Unrealized (Losses) | (6) | (9)
Government-sponsored enterprise securities |  |
Fair Value |  |
Amortized Cost | 5,000 | 20,000
Fair Value | 5,032 | 20,009
Unrealized Gains | 32 | 17
Unrealized (Losses) | 0 | (8)
Mortgage-backed securities |  |
Fair Value |  |
Amortized Cost | 727,261 | 758,491
Fair Value | 756,926 | 767,285
Unrealized Gains | 29,892 | 9,463
Unrealized (Losses) | (227) | (669)
Debt Securities, Held-to-maturity, Maturity [Abstract] |  |
Amortized Cost | 39,113 | 41,423
Fair Value | 39,992 | 41,542
Unrealized Gains | 879 | 125
Unrealized (Losses) | 0 | (6)
Corporate bonds |  |
Fair Value |  |
Amortized Cost | 43,701 | 33,711
Fair Value | 44,512 | 34,651
Unrealized Gains | 866 | 1,025
Unrealized (Losses) | (55) | (85)
State and local governments |  |
Debt Securities, Held-to-maturity, Maturity [Abstract] |  |
Amortized Cost | 22,190 | 26,509
Fair Value | 22,393 | 26,791
Unrealized Gains | 209 | 285
Unrealized (Losses) | $ (6) | $ (3)

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