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v3.23.1

Securities - Amortized Cost and Fair Value of Debt Securities (Details) - USD ($) $ in Thousands | Mar. 31, 2023 | Dec. 31, 2022
--- | --- | ---
Debt Securities, Available-for-sale [Line Items] |  |
Amortized Cost | $ 1,085,963 | $ 1,104,105
Gross Unrealized Gains | 687 | 261
Gross Unrealized Losses | (88,948) | (102,582)
Fair Value | 997,702 | 1,001,784
Interest receivable | 3,300 | 3,700
U.S. Treasury securities |  |
Debt Securities, Available-for-sale [Line Items] |  |
Amortized Cost | 145,139 | 145,416
Gross Unrealized Gains | 19 | 0
Gross Unrealized Losses | (11,454) | (13,721)
Fair Value | 133,704 | 131,695
Obligations of U.S. government corporations and agencies |  |
Debt Securities, Available-for-sale [Line Items] |  |
Amortized Cost | 43,445 | 43,479
Gross Unrealized Gains | 0 | 0
Gross Unrealized Losses | (1,350) | (1,668)
Fair Value | 42,095 | 41,811
Collateralized mortgage obligations of U.S. government corporations and agencies |  |
Debt Securities, Available-for-sale [Line Items] |  |
Amortized Cost | 479,804 | 482,039
Gross Unrealized Gains | 309 | 203
Gross Unrealized Losses | (47,374) | (53,835)
Fair Value | 432,739 | 428,407
Residential mortgage-backed securities of U.S. government corporations and agencies |  |
Debt Securities, Available-for-sale [Line Items] |  |
Amortized Cost | 48,273 | 49,418
Gross Unrealized Gains | 5 | 3
Gross Unrealized Losses | (7,108) | (7,834)
Fair Value | 41,170 | 41,587
Commercial mortgage-backed securities of U.S. government corporations and agencies |  |
Debt Securities, Available-for-sale [Line Items] |  |
Amortized Cost | 338,646 | 352,465
Gross Unrealized Gains | 115 | 0
Gross Unrealized Losses | (21,662) | (25,152)
Fair Value | 317,099 | 327,313
Corporate obligations |  |
Debt Securities, Available-for-sale [Line Items] |  |
Amortized Cost | 0 | 500
Gross Unrealized Gains | 0 | 0
Gross Unrealized Losses | 0 | 0
Fair Value | 0 | 500
Obligations of states and political subdivisions |  |
Debt Securities, Available-for-sale [Line Items] |  |
Amortized Cost | 30,656 | 30,788
Gross Unrealized Gains | 239 | 55
Gross Unrealized Losses | 0 | (372)
Fair Value | $ 30,895 | $ 30,471

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