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Securities - Schedule of Estimated Fair Value and Unrealized Losses for Debt Securities Available-for-Sale and Held-to-Maturity (Details) - USD ($)
$ in Thousands
Mar. 31, 2025
Dec. 31, 2024
Debt securities available-for-sale:    
Available-for-sale, Less than 12 months, Estimated Fair Value $ 292,210 $ 242,563
Available-for-sale, Less than 12 months, Unrealized Losses (990) (877)
Available-for-sale, 12 months or Longer, Estimated Fair Value 156,149 208,677
Available-for-sale, 12 months or longer, Unrealized Losses (16,775) (20,440)
Available-for-sale, Total, Estimated Fair Value 448,359 451,240
Available-for-sale, Total, Unrealized Losses (17,765) (21,317)
Debt securities held-to-maturity:    
Held-to-maturity, Less than 12 months, Estimated Fair Value 56,052 126,796
Held-to-maturity, Less than 12 months, Unrealized Losses (1,015) (2,062)
Held-to-maturity, 12 months or longer, Estimated Fair Value 738,576 763,982
Held-to-maturity, 12 months or longer, Unrealized Losses (80,595) (92,882)
Held-to-maturity, Total, Estimated Fair Value 794,628 890,778
Held-to-maturity, Total, Unrealized Losses (81,610) (94,944)
Total securities, Less than 12 months, Estimated Fair Value 348,262 369,359
Total securities, Less than 12 months, Unrealized Losses (2,005) (2,939)
Total securities, 12 months or longer, Estimated Fair Value 894,725 972,659
Total securities, 12 months or longer, Unrealized Losses (97,370) (113,322)
Total securities, Estimated Fair Value 1,242,987 1,342,018
Total securities, Unrealized Losses (99,375) (116,261)
U.S. government and agency obligations | Investment securities    
Debt securities available-for-sale:    
Available-for-sale, Less than 12 months, Estimated Fair Value 2,475 3,221
Available-for-sale, Less than 12 months, Unrealized Losses (1) 0
Available-for-sale, 12 months or Longer, Estimated Fair Value 50,506 49,538
Available-for-sale, 12 months or longer, Unrealized Losses (4,065) (5,022)
Available-for-sale, Total, Estimated Fair Value 52,981 52,759
Available-for-sale, Total, Unrealized Losses (4,066) (5,022)
Corporate debt securities    
Debt securities held-to-maturity:    
Held-to-maturity, Total, Unrealized Losses (843) (1,416)
Corporate debt securities | Investment securities    
Debt securities available-for-sale:    
Available-for-sale, Less than 12 months, Estimated Fair Value 0 4,793
Available-for-sale, Less than 12 months, Unrealized Losses 0 (55)
Available-for-sale, 12 months or Longer, Estimated Fair Value 4,661 6,029
Available-for-sale, 12 months or longer, Unrealized Losses (339) (707)
Available-for-sale, Total, Estimated Fair Value 4,661 10,822
Available-for-sale, Total, Unrealized Losses (339) (762)
Debt securities held-to-maturity:    
Held-to-maturity, Less than 12 months, Estimated Fair Value 550 1,247
Held-to-maturity, Less than 12 months, Unrealized Losses (2) (219)
Held-to-maturity, 12 months or longer, Estimated Fair Value 20,877 25,518
Held-to-maturity, 12 months or longer, Unrealized Losses (841) (1,197)
Held-to-maturity, Total, Estimated Fair Value 21,427 26,765
Held-to-maturity, Total, Unrealized Losses (843) (1,416)
Asset-backed securities | Investment securities    
Debt securities available-for-sale:    
Available-for-sale, Less than 12 months, Estimated Fair Value 64,053 31,588
Available-for-sale, Less than 12 months, Unrealized Losses (64) (21)
Available-for-sale, 12 months or Longer, Estimated Fair Value 5,000 59,148
Available-for-sale, 12 months or longer, Unrealized Losses 0 (63)
Available-for-sale, Total, Estimated Fair Value 69,053 90,736
Available-for-sale, Total, Unrealized Losses (64) (84)
Mortgage-backed securities:    
Debt securities available-for-sale:    
Available-for-sale, Less than 12 months, Estimated Fair Value 225,682 202,961
Available-for-sale, Less than 12 months, Unrealized Losses (925) (801)
Available-for-sale, 12 months or Longer, Estimated Fair Value 95,982 93,962
Available-for-sale, 12 months or longer, Unrealized Losses (12,371) (14,648)
Available-for-sale, Total, Estimated Fair Value 321,664 296,923
Available-for-sale, Total, Unrealized Losses (13,296) (15,449)
Debt securities held-to-maturity:    
Held-to-maturity, Less than 12 months, Estimated Fair Value 45,528 118,451
Held-to-maturity, Less than 12 months, Unrealized Losses (612) (1,667)
Held-to-maturity, 12 months or longer, Estimated Fair Value 563,490 569,030
Held-to-maturity, 12 months or longer, Unrealized Losses (65,983) (78,196)
Held-to-maturity, Total, Estimated Fair Value 609,018 687,481
Held-to-maturity, Total, Unrealized Losses (66,595) (79,863)
Mortgage-backed securities: | Agency residential    
Debt securities available-for-sale:    
Available-for-sale, Less than 12 months, Estimated Fair Value 225,682 202,961
Available-for-sale, Less than 12 months, Unrealized Losses (925) (801)
Available-for-sale, 12 months or Longer, Estimated Fair Value 0 0
Available-for-sale, 12 months or longer, Unrealized Losses 0 0
Available-for-sale, Total, Estimated Fair Value 225,682 202,961
Available-for-sale, Total, Unrealized Losses (925) (801)
Debt securities held-to-maturity:    
Held-to-maturity, Less than 12 months, Estimated Fair Value 43,499 114,557
Held-to-maturity, Less than 12 months, Unrealized Losses (605) (1,647)
Held-to-maturity, 12 months or longer, Estimated Fair Value 473,453 479,847
Held-to-maturity, 12 months or longer, Unrealized Losses (60,267) (71,463)
Held-to-maturity, Total, Estimated Fair Value 516,952 594,404
Held-to-maturity, Total, Unrealized Losses (60,872) (73,110)
Mortgage-backed securities: | Agency commercial    
Debt securities available-for-sale:    
Available-for-sale, Less than 12 months, Estimated Fair Value 0 0
Available-for-sale, Less than 12 months, Unrealized Losses 0 0
Available-for-sale, 12 months or Longer, Estimated Fair Value 95,982 93,962
Available-for-sale, 12 months or longer, Unrealized Losses (12,371) (14,648)
Available-for-sale, Total, Estimated Fair Value 95,982 93,962
Available-for-sale, Total, Unrealized Losses (12,371) (14,648)
Debt securities held-to-maturity:    
Held-to-maturity, Less than 12 months, Estimated Fair Value 2,029 3,894
Held-to-maturity, Less than 12 months, Unrealized Losses (7) (20)
Held-to-maturity, 12 months or longer, Estimated Fair Value 71,478 69,912
Held-to-maturity, 12 months or longer, Unrealized Losses (5,165) (5,858)
Held-to-maturity, Total, Estimated Fair Value 73,507 73,806
Held-to-maturity, Total, Unrealized Losses (5,172) (5,878)
Mortgage-backed securities: | Non-agency commercial    
Debt securities held-to-maturity:    
Held-to-maturity, Less than 12 months, Estimated Fair Value 0 0
Held-to-maturity, Less than 12 months, Unrealized Losses 0 0
Held-to-maturity, 12 months or longer, Estimated Fair Value 18,559 19,271
Held-to-maturity, 12 months or longer, Unrealized Losses (551) (875)
Held-to-maturity, Total, Estimated Fair Value 18,559 19,271
Held-to-maturity, Total, Unrealized Losses (551) (875)
Held-to-maturity, Total, Estimated Fair Value    
Debt securities held-to-maturity:    
Held-to-maturity, Total, Unrealized Losses (14,172) (13,665)
Held-to-maturity, Total, Estimated Fair Value | Investment securities    
Debt securities held-to-maturity:    
Held-to-maturity, Less than 12 months, Estimated Fair Value 9,974 7,098
Held-to-maturity, Less than 12 months, Unrealized Losses (401) (176)
Held-to-maturity, 12 months or longer, Estimated Fair Value 154,209 169,434
Held-to-maturity, 12 months or longer, Unrealized Losses (13,771) (13,489)
Held-to-maturity, Total, Estimated Fair Value 164,183 176,532
Held-to-maturity, Total, Unrealized Losses $ (14,172) $ (13,665)