Securities - Amortized Cost and Estimated Fair Value of Securities - Securities Held-to-maturity (Details) - USD ($) $ in Thousands |
Sep. 30, 2020 |
Jan. 01, 2020 |
Dec. 31, 2019 |
---|---|---|---|
Securities held-to-maturity: | |||
Amortized Cost | $ 295,664 | $ 366,560 | |
Gross Unrealized Gains | 8,333 | 2,519 | |
Gross Unrealized (Losses) | (1) | (972) | |
Allowance for credit losses | (55) | $ (58) | |
Estimated Fair Value | 303,996 | 368,107 | |
Agency mortgage-backed securities | |||
Securities held-to-maturity: | |||
Amortized Cost | 223,453 | 285,344 | |
Gross Unrealized Gains | 6,613 | 1,206 | |
Gross Unrealized (Losses) | (1) | (968) | |
Estimated Fair Value | 230,065 | 285,582 | |
Municipals - exempt from Federal tax | |||
Securities held-to-maturity: | |||
Amortized Cost | 72,211 | 81,216 | |
Gross Unrealized Gains | 1,720 | 1,313 | |
Gross Unrealized (Losses) | (4) | ||
Allowance for credit losses | (55) | ||
Estimated Fair Value | $ 73,931 | $ 82,525 |