XML 94 R53.htm IDEA: XBRL DOCUMENT v3.22.4
Securities Securities - Amortized Cost and Fair Value of Securities (Details) - USD ($)
$ in Thousands
Dec. 31, 2022
Dec. 31, 2021
Schedule of Held-to-maturity Securities [Line Items]    
Amortized cost $ 3,080,658 $ 1,156,119
Debt Securities, Held-to-maturity, Accumulated Unrecognized Gain 2,268 33,052
Debt Securities, Held-to-maturity, Accumulated Unrecognized Loss 337,980 1,122
Fair Value 2,744,946 1,188,049
Allowance for credit losses - securities held-to-maturity (1,608) (161)
Securities held-to-maturity, net of allowance for credit losses 3,079,050 1,155,958
Debt Securities, Held-to-maturity, Maturity, Amortized Cost, Net [Abstract]    
Due in one year or less 1,994  
Due in one year to five years 427,894  
Due in five to ten years 133,681  
Due after ten years 1,919,729  
Mortgage-backed securities 413,119  
Asset-backed securities 184,241  
Amortized cost 3,080,658 1,156,119
Debt Securities, Held-to-maturity, Maturity, Fair Value [Abstract]    
Due in one year or less 1,981  
Due in one year to five years 396,683  
Due in five to ten years 120,245  
Due after ten years 1,688,791  
Mortgage-backed securities 371,578  
Asset-backed securities 165,668  
Fair Value 2,744,946 1,188,049
Amortized Cost 3,871,491 4,858,544
Gross Unrealized Gain 12,805 88,336
Gross Unrealized Loss 325,426 32,686
Securities available-for-sale, at fair value 3,558,870 4,914,194
US Treasury Securities    
Schedule of Held-to-maturity Securities [Line Items]    
Amortized cost 92,738  
Debt Securities, Held-to-maturity, Accumulated Unrecognized Gain 0  
Debt Securities, Held-to-maturity, Accumulated Unrecognized Loss 6,472  
Fair Value 86,266  
Debt Securities, Held-to-maturity, Maturity, Amortized Cost, Net [Abstract]    
Amortized cost 92,738  
Debt Securities, Held-to-maturity, Maturity, Fair Value [Abstract]    
Fair Value 86,266  
Amortized Cost 196,151 194,490
Gross Unrealized Gain 0 0
Gross Unrealized Loss 1,967 881
Securities available-for-sale, at fair value 194,184 193,609
U.S. Government Agency Securities    
Schedule of Held-to-maturity Securities [Line Items]    
Amortized cost 374,255 11,920
Debt Securities, Held-to-maturity, Accumulated Unrecognized Gain 0 0
Debt Securities, Held-to-maturity, Accumulated Unrecognized Loss 27,860 37
Fair Value 346,395 11,883
Debt Securities, Held-to-maturity, Maturity, Amortized Cost, Net [Abstract]    
Amortized cost 374,255 11,920
Debt Securities, Held-to-maturity, Maturity, Fair Value [Abstract]    
Fair Value 346,395 11,883
Amortized Cost 432,475 634,611
Gross Unrealized Gain 0 2,359
Gross Unrealized Loss 36,318 4,961
Securities available-for-sale, at fair value 396,157 632,009
Mortgage-backed Agency Securities    
Schedule of Held-to-maturity Securities [Line Items]    
Amortized cost 413,119 106,555
Debt Securities, Held-to-maturity, Accumulated Unrecognized Gain 52 86
Debt Securities, Held-to-maturity, Accumulated Unrecognized Loss 41,593 196
Fair Value 371,578 106,445
Debt Securities, Held-to-maturity, Maturity, Amortized Cost, Net [Abstract]    
Amortized cost 413,119 106,555
Debt Securities, Held-to-maturity, Maturity, Fair Value [Abstract]    
Fair Value 371,578 106,445
Amortized Cost 1,114,948 1,908,675
Gross Unrealized Gain 211 29,874
Gross Unrealized Loss 143,583 18,310
Securities available-for-sale, at fair value 971,576 1,920,239
State and Municipal Securities    
Schedule of Held-to-maturity Securities [Line Items]    
Amortized cost 1,927,778 1,037,644
Debt Securities, Held-to-maturity, Accumulated Unrecognized Gain 2,216 32,966
Debt Securities, Held-to-maturity, Accumulated Unrecognized Loss 233,564 889
Fair Value 1,696,430 1,069,721
Debt Securities, Held-to-maturity, Maturity, Amortized Cost, Net [Abstract]    
Amortized cost 1,927,778 1,037,644
Debt Securities, Held-to-maturity, Maturity, Fair Value [Abstract]    
Fair Value 1,696,430 1,069,721
Amortized Cost 1,478,310 1,774,119
Gross Unrealized Gain 12,553 52,961
Gross Unrealized Loss 78,557 3,243
Securities available-for-sale, at fair value 1,412,306 1,823,837
Asset-backed Securities    
Schedule of Held-to-maturity Securities [Line Items]    
Amortized cost 184,241  
Debt Securities, Held-to-maturity, Accumulated Unrecognized Gain 0  
Debt Securities, Held-to-maturity, Accumulated Unrecognized Loss 18,573  
Fair Value 165,668  
Debt Securities, Held-to-maturity, Maturity, Amortized Cost, Net [Abstract]    
Amortized cost 184,241  
Debt Securities, Held-to-maturity, Maturity, Fair Value [Abstract]    
Fair Value 165,668  
Amortized Cost 134,386 232,294
Gross Unrealized Gain 0 60
Gross Unrealized Loss 16,983 2,785
Securities available-for-sale, at fair value 117,403 229,569
Corporate Debt Securities    
Schedule of Held-to-maturity Securities [Line Items]    
Amortized cost 88,527  
Debt Securities, Held-to-maturity, Accumulated Unrecognized Gain 0  
Debt Securities, Held-to-maturity, Accumulated Unrecognized Loss 9,918  
Fair Value 78,609  
Debt Securities, Held-to-maturity, Maturity, Amortized Cost, Net [Abstract]    
Amortized cost 88,527  
Debt Securities, Held-to-maturity, Maturity, Fair Value [Abstract]    
Fair Value 78,609  
Amortized Cost 515,221 114,355
Gross Unrealized Gain 41 3,082
Gross Unrealized Loss 48,018 2,506
Securities available-for-sale, at fair value $ 467,244 $ 114,931