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Securities - Contractual Maturities (Details) - USD ($) $ in Thousands | Mar. 31, 2024 | Dec. 31, 2023
--- | --- | ---
Amortized Cost |  |
Due in one year or less | $ 0 |
Due after one year through five years | 0 |
Due after five years through ten years | 5,161 |
Due after ten years | 6,514 |
Held to maturity, amortized cost | 11,675 |
Fair Value |  |
Due in one year or less | 0 |
Due after one year through five years | 0 |
Due after five years through ten years | 4,833 |
Due after ten years | 6,123 |
Held to maturity, fair value | 10,956 | $ 10,848
Amortized Cost |  |
Due in one year or less | 48,761 |
Due after one year through five years | 86,572 |
Due after five years through ten years | 177,058 |
Due after ten years | 167,031 |
Available for sale, amortized cost | 1,349,979 | 1,407,675
Fair Value |  |
Due in one year or less | 48,562 |
Due after one year through five years | 79,665 |
Due after five years through ten years | 156,673 |
Due after ten years | 138,382 |
Available for sale, fair value | 1,190,922 | 1,253,631
Commercial mortgage-backed securities |  |
Amortized Cost |  |
Without single maturity date | 0 |
Fair Value |  |
Without single maturity date | 0 |
Amortized Cost |  |
Without single maturity date | 104,150 |
Available for sale, amortized cost | 104,150 | 104,459
Fair Value |  |
Without single maturity date | 92,740 |
Available for sale, fair value | 92,740 | 93,396
Residential mortgage-backed securities |  |
Amortized Cost |  |
Without single maturity date | 0 |
Fair Value |  |
Without single maturity date | 0 |
Amortized Cost |  |
Without single maturity date | 552,647 |
Available for sale, amortized cost | 552,647 | 569,622
Fair Value |  |
Without single maturity date | 486,623 |
Available for sale, fair value | 486,623 | 506,502
Commercial collateralized mortgage obligations |  |
Amortized Cost |  |
Without single maturity date | 0 |
Fair Value |  |
Without single maturity date | 0 |
Amortized Cost |  |
Without single maturity date | 45,874 |
Available for sale, amortized cost | 45,874 | 39,386
Fair Value |  |
Without single maturity date | 41,426 |
Available for sale, fair value | 41,426 | 35,183
Residential collateralized mortgage obligations |  |
Amortized Cost |  |
Without single maturity date | 0 |
Fair Value |  |
Without single maturity date | 0 |
Amortized Cost |  |
Without single maturity date | 147,310 |
Available for sale, amortized cost | 147,310 | 150,710
Fair Value |  |
Without single maturity date | 126,333 |
Available for sale, fair value | 126,333 | 130,144
Asset-backed securities |  |
Amortized Cost |  |
Without single maturity date | 0 |
Fair Value |  |
Without single maturity date | 0 |
Amortized Cost |  |
Without single maturity date | 20,576 |
Available for sale, amortized cost | 20,576 | 43,521
Fair Value |  |
Without single maturity date | 20,518 |
Available for sale, fair value | $ 20,518 | $ 43,005

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