XML 57 R46.htm IDEA: XBRL DOCUMENT v3.24.1.u1
Investment Securities - Amortized Cost and Fair Value, by Contractual Maturity (Details) - USD ($)
$ in Thousands
Mar. 31, 2024
Dec. 31, 2023
Amortized Cost    
Due in one year or less $ 13,254  
Due after one year through five years 29,275  
Due after five years through ten years 87,696  
Due after ten years 164,869  
Total contractual maturities 295,094  
Available-for-sale investment securities, amortized cost 2,466,109 $ 2,558,675
Fair Value    
Due in one year or less 12,821  
Due after one year through five years 28,885  
Due after five years through ten years 87,617  
Due after ten years 164,913  
Total contractual maturities 294,236  
Total available-for-sale securities, Fair value, 2,159,338 2,255,336
Amortized Cost    
Due after five years through ten years 22,132  
Due after ten years 84,068  
Total contractual maturities 106,200  
Amortized cost 3,988,011 4,041,449
Fair Value    
Due after five years through ten years 20,121  
Due after ten years 75,134  
Total contractual maturities 95,255  
Total held to maturity, Fair value, 3,470,710 3,574,856
Mortgage-backed securities:    
Amortized Cost    
Mortgaged-backed securities and collateralized mortgage obligations 1,234,124  
Fair Value    
Mortgaged-backed securities and collateralized mortgage obligations 1,059,878  
Amortized Cost    
Mortgaged-backed securities and collateralized mortgage obligations 1,299,049  
Fair Value    
Mortgaged-backed securities and collateralized mortgage obligations 1,127,512  
Residential - Government agency    
Amortized Cost    
Mortgaged-backed securities and collateralized mortgage obligations 10,959  
Available-for-sale investment securities, amortized cost 10,959 11,303
Fair Value    
Mortgaged-backed securities and collateralized mortgage obligations 9,609  
Total available-for-sale securities, Fair value, 9,609 10,182
Amortized Cost    
Mortgaged-backed securities and collateralized mortgage obligations 42,961  
Amortized cost 42,961 43,885
Fair Value    
Mortgaged-backed securities and collateralized mortgage obligations 36,752  
Total held to maturity, Fair value, 36,752 38,696
Residential - Government-sponsored enterprises    
Amortized Cost    
Mortgaged-backed securities and collateralized mortgage obligations 868,033  
Available-for-sale investment securities, amortized cost 868,033 895,421
Fair Value    
Mortgaged-backed securities and collateralized mortgage obligations 753,385  
Total available-for-sale securities, Fair value, 753,385 783,297
Amortized Cost    
Mortgaged-backed securities and collateralized mortgage obligations 97,914  
Amortized cost 97,914 99,379
Fair Value    
Mortgaged-backed securities and collateralized mortgage obligations 84,448  
Total held to maturity, Fair value, 84,448 88,366
Commercial - Government agency    
Amortized Cost    
Mortgaged-backed securities and collateralized mortgage obligations 264,691  
Available-for-sale investment securities, amortized cost 264,691 268,944
Fair Value    
Mortgaged-backed securities and collateralized mortgage obligations 213,394  
Total available-for-sale securities, Fair value, 213,394 218,674
Amortized Cost    
Mortgaged-backed securities and collateralized mortgage obligations 30,853  
Amortized cost 30,853 30,795
Fair Value    
Mortgaged-backed securities and collateralized mortgage obligations 23,202  
Total held to maturity, Fair value, 23,202 23,778
Commercial - Government-sponsored enterprises    
Amortized Cost    
Mortgaged-backed securities and collateralized mortgage obligations 90,441  
Available-for-sale investment securities, amortized cost 90,441 93,459
Fair Value    
Mortgaged-backed securities and collateralized mortgage obligations 83,490  
Total available-for-sale securities, Fair value, 83,490 86,431
Amortized Cost    
Mortgaged-backed securities and collateralized mortgage obligations 1,127,321  
Amortized cost 1,127,321 1,129,738
Fair Value    
Mortgaged-backed securities and collateralized mortgage obligations 983,110  
Total held to maturity, Fair value, 983,110 999,176
Collateralized mortgage obligations    
Amortized Cost    
Mortgaged-backed securities and collateralized mortgage obligations 936,891  
Fair Value    
Mortgaged-backed securities and collateralized mortgage obligations 805,224  
Amortized Cost    
Mortgaged-backed securities and collateralized mortgage obligations 2,582,762  
Fair Value    
Mortgaged-backed securities and collateralized mortgage obligations 2,247,943  
Government agency    
Amortized Cost    
Mortgaged-backed securities and collateralized mortgage obligations 523,160  
Available-for-sale investment securities, amortized cost 523,160 538,718
Fair Value    
Mortgaged-backed securities and collateralized mortgage obligations 452,163  
Total available-for-sale securities, Fair value, 452,163 471,150
Amortized Cost    
Mortgaged-backed securities and collateralized mortgage obligations 972,199  
Amortized cost 972,199 989,130
Fair Value    
Mortgaged-backed securities and collateralized mortgage obligations 847,035  
Total held to maturity, Fair value, 847,035 879,659
Government-sponsored enterprises    
Amortized Cost    
Mortgaged-backed securities and collateralized mortgage obligations 413,731  
Available-for-sale investment securities, amortized cost 413,731 425,826
Fair Value    
Mortgaged-backed securities and collateralized mortgage obligations 353,061  
Total available-for-sale securities, Fair value, 353,061 363,970
Amortized Cost    
Mortgaged-backed securities and collateralized mortgage obligations 1,610,563  
Amortized cost 1,610,563 1,642,274
Fair Value    
Mortgaged-backed securities and collateralized mortgage obligations 1,400,908  
Total held to maturity, Fair value, $ 1,400,908 $ 1,448,377