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Securities - Contractual Maturity (Details) - USD ($) $ in Thousands | Dec. 31, 2023 | Dec. 31, 2022
--- | --- | ---
Amortized Cost |  |
Due within one year | $ 0 |
Due after one year through five years | 7,770 |
Due after five years through ten years | 104,491 |
Due after ten years | 234,266 |
Amortized Cost | 1,221,496 | $ 1,324,072
Fair Value |  |
Due within one year | 0 |
Due after one year through five years | 7,358 |
Due after five years through ten years | 94,154 |
Due after ten years | 207,282 |
Fair Value | 1,121,830 | 1,206,540
Amortized Cost |  |
Due within one year | 5,710 |
Due after one year through five years | 36,353 |
Due after five years through ten years | 42,145 |
Due after ten years | 15,954 |
Amortized Cost | 1,062,649 | 1,735,000
Fair Value |  |
Due within one year | 5,650 |
Due after one year through five years | 36,390 |
Due after five years through ten years | 37,993 |
Due after ten years | 14,893 |
Fair Value | 923,279 | 1,533,942
Residential mortgage-backed securities |  |
Amortized Cost |  |
Amortized Cost | 387,208 | 423,315
Fair Value |  |
Fair Value | 355,538 | 392,609
Other debt securities |  |
Amortized Cost |  |
Without single maturity date, amortized cost | 0 |
Amortized Cost | 58,373 | 62,875
Fair Value |  |
Without single maturity date, fair value | 0 |
Fair Value | 54,254 | 58,609
Amortized Cost |  |
Without single maturity date, amortized cost | 8,595 |
Amortized Cost | 72,383 | 74,885
Fair Value |  |
Without single maturity date, fair value | 7,718 |
Fair Value | 68,034 | 70,836
Government agency mortgage-backed securities | Residential mortgage-backed securities |  |
Amortized Cost |  |
Without single maturity date, amortized cost | 426,264 |
Amortized Cost | 426,264 | 483,560
Fair Value |  |
Without single maturity date, fair value | 405,950 |
Fair Value | 405,950 | 459,128
Amortized Cost |  |
Without single maturity date, amortized cost | 301,400 |
Amortized Cost | 301,400 | 508,415
Fair Value |  |
Without single maturity date, fair value | 276,604 |
Fair Value | 276,604 | 456,416
Government agency mortgage-backed securities | Commercial mortgage-backed securities |  |
Amortized Cost |  |
Without single maturity date, amortized cost | 16,983 |
Amortized Cost | 16,983 | 17,006
Fair Value |  |
Without single maturity date, fair value | 14,011 |
Fair Value | 14,011 | 13,745
Amortized Cost |  |
Without single maturity date, amortized cost | 6,029 |
Amortized Cost | 6,029 | 11,166
Fair Value |  |
Without single maturity date, fair value | 5,392 |
Fair Value | 5,392 | 10,113
Government agency collateralized mortgage obligations | Residential mortgage-backed securities |  |
Amortized Cost |  |
Without single maturity date, amortized cost | 387,208 |
Fair Value |  |
Without single maturity date, fair value | 355,538 |
Amortized Cost |  |
Without single maturity date, amortized cost | 485,164 |
Amortized Cost | 485,164 | 605,033
Fair Value |  |
Without single maturity date, fair value | 399,281 |
Fair Value | 399,281 | 501,169
Government agency collateralized mortgage obligations | Commercial mortgage-backed securities |  |
Amortized Cost |  |
Without single maturity date, amortized cost | 44,514 |
Amortized Cost | 44,514 | 45,430
Fair Value |  |
Without single maturity date, fair value | 37,537 |
Fair Value | 37,537 | 38,871
Amortized Cost |  |
Without single maturity date, amortized cost | 161,299 |
Amortized Cost | 161,299 | 211,435
Fair Value |  |
Without single maturity date, fair value | 139,358 |
Fair Value | $ 139,358 | $ 185,846

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