v3.25.2
Securities - Schedule of Debt Securities, Available-for-Sale and Held-to-Maturity (Details) - USD ($)
$ in Thousands
Jun. 30, 2025
Mar. 31, 2025
Dec. 31, 2024
Jun. 30, 2024
Mar. 31, 2024
Dec. 31, 2023
Debt securities available-for-sale:            
Amortized Cost $ 749,782   $ 847,272      
Gross Unrealized Gains 1,337   1,545      
Gross Unrealized Losses (15,558)   (21,317)      
Estimated Fair Value 735,561   827,500      
Allowance for Securities Credit Losses 0   0      
Debt securities held-to-maturity:            
Amortized Cost 969,778   1,046,842      
Gross Unrealized Gains 1,473   1,019      
Gross Unrealized Losses (75,161)   (94,944)      
Estimated Fair Value 896,090   952,917      
Allowance for Securities Credit Losses (809) $ (898) (967) $ (958) $ (1,058) $ (1,133)
Total, amortized cost 1,719,560   1,894,114      
Total, gross unrealized gains 2,810   2,564      
Total, gross unrealized losses (90,719)   (116,261)      
Total, estimated fair value 1,631,651   1,780,417      
U.S. government and agency obligations            
Debt securities available-for-sale:            
Amortized Cost 59,254   62,396      
Gross Unrealized Gains 4   11      
Gross Unrealized Losses (3,516)   (5,022)      
Estimated Fair Value 55,742   57,385      
Allowance for Securities Credit Losses 0   0      
Corporate debt securities            
Debt securities available-for-sale:            
Amortized Cost 22,071   14,042      
Gross Unrealized Gains 295   43      
Gross Unrealized Losses (278)   (762)      
Estimated Fair Value 22,088   13,323      
Allowance for Securities Credit Losses 0   0      
Debt securities held-to-maturity:            
Amortized Cost 55,677   65,350      
Gross Unrealized Gains 252   775      
Gross Unrealized Losses (625)   (1,416)      
Estimated Fair Value 55,304   64,709      
Allowance for Securities Credit Losses (588)   (734)      
Asset-backed securities            
Debt securities available-for-sale:            
Amortized Cost 140,653   197,116      
Gross Unrealized Gains 136   235      
Gross Unrealized Losses (50)   (84)      
Estimated Fair Value 140,739   197,267      
Allowance for Securities Credit Losses 0   0      
Agency residential            
Debt securities available-for-sale:            
Amortized Cost 419,213   465,108      
Gross Unrealized Gains 902   1,256      
Gross Unrealized Losses (753)   (801)      
Estimated Fair Value 419,362   465,563      
Allowance for Securities Credit Losses 0   0      
Debt securities held-to-maturity:            
Amortized Cost 633,637   680,052      
Gross Unrealized Gains 1,065   44      
Gross Unrealized Losses (55,702)   (73,110)      
Estimated Fair Value 579,000   606,986      
Allowance for Securities Credit Losses 0   0      
Agency commercial            
Debt securities available-for-sale:            
Amortized Cost 108,591   108,610      
Gross Unrealized Gains 0   0      
Gross Unrealized Losses (10,961)   (14,648)      
Estimated Fair Value 97,630   93,962      
Allowance for Securities Credit Losses 0   0      
Debt securities held-to-maturity:            
Amortized Cost 79,035   79,925      
Gross Unrealized Gains 6   1      
Gross Unrealized Losses (5,487)   (5,878)      
Estimated Fair Value 73,554   74,048      
Allowance for Securities Credit Losses 0   0      
State and municipal debt obligations            
Debt securities held-to-maturity:            
Amortized Cost 183,589   201,369      
Gross Unrealized Gains 150   199      
Gross Unrealized Losses (12,958)   (13,665)      
Estimated Fair Value 170,781   187,903      
Allowance for Securities Credit Losses (27)   (31)      
Non-agency commercial            
Debt securities held-to-maturity:            
Amortized Cost 17,840   20,146      
Gross Unrealized Gains 0   0      
Gross Unrealized Losses (389)   (875)      
Estimated Fair Value 17,451   19,271      
Allowance for Securities Credit Losses (194)   (202)      
Total mortgage-backed securities            
Debt securities available-for-sale:            
Amortized Cost 527,804   573,718      
Gross Unrealized Gains 902   1,256      
Gross Unrealized Losses (11,714)   (15,449)      
Estimated Fair Value 516,992   559,525      
Allowance for Securities Credit Losses 0   0      
Debt securities held-to-maturity:            
Amortized Cost 730,512   780,123      
Gross Unrealized Gains 1,071   45      
Gross Unrealized Losses (61,578)   (79,863)      
Estimated Fair Value 670,005   700,305      
Allowance for Securities Credit Losses $ (194)   $ (202)