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Investment Securities - Unrealized Loss Positions (Details) - USD ($)
$ in Thousands
Dec. 31, 2022
Dec. 31, 2021
Debt Securities, Held-to-maturity, Continuous Unrealized Loss Position, Fair Value [Abstract]    
Less than 12 continuous months $ 359,313 $ 201,204
Greater than or equal to 12 continuous months 459,948 0
Total Securities in a loss position 819,261 201,204
Debt Securities, Held-to-maturity, Unrealized Loss Position, Accumulated Loss [Abstract]    
Less than 12 continuous months (23,733) (2,867)
Greater than or equal to 12 continuous months (103,305) 0
Held-to-maturity, gross unrealized losses (127,038) (2,867)
Debt Securities, Available-For-Sale, Continuous Unrealized Loss Position, Fair Value [Abstract]    
Available-for-sale, less than 12 continuous months, fair value 354,695 797,781
Available-for-sale, greater than 12 continuous months, fair value 443,274 14,173
Available-for-sale, total securities in a loss position, fair value 797,969 811,954
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss [Abstract]    
Available-for-sale, less than 12 continuous months, unrealized loss (33,887) (12,411)
Available-for-sale, greater than 12 continuous months, unrealized loss (56,656) (615)
Available-for-sale, total securities in a loss position, unrealized loss (90,543) (13,026)
Marketable Securities, Continuous Unrealized Loss Position, Fair Value [Abstract]    
Marketable securities, less than 12 continuous months, fair value 714,008 998,985
Marketable securities, greater than 12 continuous months, fair value 903,222 14,173
Marketable securities, total securities in a loss position, fair value 1,617,230 1,013,158
Marketable Securities, Continuous Unrealized Loss Position, Accumulated Loss [Abstract]    
Marketable securities, less than 12 continuous months, unrealized loss (57,620) (15,278)
Marketable securities, greater than 12 continuous months, unrealized loss (159,961) (615)
Marketable securities, total securities in a loss position, unrealized loss (217,581) (15,893)
MBS pass-through securities issued by FHLMC, FNMA and GNMA    
Debt Securities, Held-to-maturity, Continuous Unrealized Loss Position, Fair Value [Abstract]    
Less than 12 continuous months 62,627 76,619
Greater than or equal to 12 continuous months 218,507 0
Total Securities in a loss position 281,134 76,619
Debt Securities, Held-to-maturity, Unrealized Loss Position, Accumulated Loss [Abstract]    
Less than 12 continuous months (5,960) (712)
Greater than or equal to 12 continuous months (44,187) 0
Held-to-maturity, gross unrealized losses (50,147) (712)
Debt Securities, Available-For-Sale, Continuous Unrealized Loss Position, Fair Value [Abstract]    
Available-for-sale, less than 12 continuous months, fair value 44,630 263,474
Available-for-sale, greater than 12 continuous months, fair value 52,235 0
Available-for-sale, total securities in a loss position, fair value 96,865 263,474
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss [Abstract]    
Available-for-sale, less than 12 continuous months, unrealized loss (4,501) (2,784)
Available-for-sale, greater than 12 continuous months, unrealized loss (7,632) 0
Available-for-sale, total securities in a loss position, unrealized loss (12,133) (2,784)
CMOs issued by FHLMC    
Debt Securities, Held-to-maturity, Continuous Unrealized Loss Position, Fair Value [Abstract]    
Less than 12 continuous months 78,144 54,811
Greater than or equal to 12 continuous months 113,796 0
Total Securities in a loss position 191,940 54,811
Debt Securities, Held-to-maturity, Unrealized Loss Position, Accumulated Loss [Abstract]    
Less than 12 continuous months (5,874) (1,045)
Greater than or equal to 12 continuous months (23,629) 0
Held-to-maturity, gross unrealized losses (29,503) (1,045)
Debt Securities, Available-For-Sale, Continuous Unrealized Loss Position, Fair Value [Abstract]    
Available-for-sale, less than 12 continuous months, fair value 169,760 226,175
Available-for-sale, greater than 12 continuous months, fair value 143,995 4,415
Available-for-sale, total securities in a loss position, fair value 313,755 230,590
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss [Abstract]    
Available-for-sale, less than 12 continuous months, unrealized loss (15,144) (4,677)
Available-for-sale, greater than 12 continuous months, unrealized loss (18,538) (152)
Available-for-sale, total securities in a loss position, unrealized loss (33,682) (4,829)
CMOs issued by FNMA    
Debt Securities, Held-to-maturity, Continuous Unrealized Loss Position, Fair Value [Abstract]    
Less than 12 continuous months 106,485  
Greater than or equal to 12 continuous months 0  
Total Securities in a loss position 106,485  
Debt Securities, Held-to-maturity, Unrealized Loss Position, Accumulated Loss [Abstract]    
Less than 12 continuous months (5,419)  
Greater than or equal to 12 continuous months 0  
Held-to-maturity, gross unrealized losses (5,419)  
Debt Securities, Available-For-Sale, Continuous Unrealized Loss Position, Fair Value [Abstract]    
Available-for-sale, less than 12 continuous months, fair value 4,790 37,348
Available-for-sale, greater than 12 continuous months, fair value 27,529 0
Available-for-sale, total securities in a loss position, fair value 32,319 37,348
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss [Abstract]    
Available-for-sale, less than 12 continuous months, unrealized loss (235) (611)
Available-for-sale, greater than 12 continuous months, unrealized loss (3,617) 0
Available-for-sale, total securities in a loss position, unrealized loss (3,852) (611)
CMOs issued by GNMA    
Debt Securities, Held-to-maturity, Continuous Unrealized Loss Position, Fair Value [Abstract]    
Less than 12 continuous months 27,570  
Greater than or equal to 12 continuous months 10,331  
Total Securities in a loss position 37,901  
Debt Securities, Held-to-maturity, Unrealized Loss Position, Accumulated Loss [Abstract]    
Less than 12 continuous months (1,676)  
Greater than or equal to 12 continuous months (1,400)  
Held-to-maturity, gross unrealized losses (3,076)  
Debt Securities, Available-For-Sale, Continuous Unrealized Loss Position, Fair Value [Abstract]    
Available-for-sale, less than 12 continuous months, fair value 8,214 44,790
Available-for-sale, greater than 12 continuous months, fair value 23,612 0
Available-for-sale, total securities in a loss position, fair value 31,826 44,790
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss [Abstract]    
Available-for-sale, less than 12 continuous months, unrealized loss (374) (553)
Available-for-sale, greater than 12 continuous months, unrealized loss (2,922) 0
Available-for-sale, total securities in a loss position, unrealized loss (3,296) (553)
SBA-backed securities    
Debt Securities, Held-to-maturity, Continuous Unrealized Loss Position, Fair Value [Abstract]    
Less than 12 continuous months 2,239  
Greater than or equal to 12 continuous months 0  
Total Securities in a loss position 2,239  
Debt Securities, Held-to-maturity, Unrealized Loss Position, Accumulated Loss [Abstract]    
Less than 12 continuous months (133)  
Greater than or equal to 12 continuous months 0  
Held-to-maturity, gross unrealized losses (133)  
Debt Securities, Available-For-Sale, Continuous Unrealized Loss Position, Fair Value [Abstract]    
Available-for-sale, less than 12 continuous months, fair value 37,845 7,478
Available-for-sale, greater than 12 continuous months, fair value 6,133 1,209
Available-for-sale, total securities in a loss position, fair value 43,978 8,687
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss [Abstract]    
Available-for-sale, less than 12 continuous months, unrealized loss (3,228) (112)
Available-for-sale, greater than 12 continuous months, unrealized loss (143) (43)
Available-for-sale, total securities in a loss position, unrealized loss (3,371) (155)
Debentures of government sponsored agencies    
Debt Securities, Held-to-maturity, Continuous Unrealized Loss Position, Fair Value [Abstract]    
Less than 12 continuous months 38,645 50,571
Greater than or equal to 12 continuous months 80,711 0
Total Securities in a loss position 119,356 50,571
Debt Securities, Held-to-maturity, Unrealized Loss Position, Accumulated Loss [Abstract]    
Less than 12 continuous months (2,530) (901)
Greater than or equal to 12 continuous months (23,937) 0
Held-to-maturity, gross unrealized losses (26,467) (901)
Debt Securities, Available-For-Sale, Continuous Unrealized Loss Position, Fair Value [Abstract]    
Available-for-sale, less than 12 continuous months, fair value 19,054 148,979
Available-for-sale, greater than 12 continuous months, fair value 116,052 8,549
Available-for-sale, total securities in a loss position, fair value 135,106 157,528
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss [Abstract]    
Available-for-sale, less than 12 continuous months, unrealized loss (946) (2,527)
Available-for-sale, greater than 12 continuous months, unrealized loss (13,062) (420)
Available-for-sale, total securities in a loss position, unrealized loss (14,008) (2,947)
U.S. Treasury securities    
Debt Securities, Available-For-Sale, Continuous Unrealized Loss Position, Fair Value [Abstract]    
Available-for-sale, less than 12 continuous months, fair value 0 11,629
Available-for-sale, greater than 12 continuous months, fair value 10,269 0
Available-for-sale, total securities in a loss position, fair value 10,269 11,629
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss [Abstract]    
Available-for-sale, less than 12 continuous months, unrealized loss 0 (256)
Available-for-sale, greater than 12 continuous months, unrealized loss (1,635) 0
Available-for-sale, total securities in a loss position, unrealized loss (1,635) (256)
Obligations of state and political subdivisions    
Debt Securities, Held-to-maturity, Continuous Unrealized Loss Position, Fair Value [Abstract]    
Less than 12 continuous months 15,155 19,203
Greater than or equal to 12 continuous months 36,603 0
Total Securities in a loss position 51,758 19,203
Debt Securities, Held-to-maturity, Unrealized Loss Position, Accumulated Loss [Abstract]    
Less than 12 continuous months (589) (209)
Greater than or equal to 12 continuous months (10,152) 0
Held-to-maturity, gross unrealized losses (10,741) (209)
Debt Securities, Available-For-Sale, Continuous Unrealized Loss Position, Fair Value [Abstract]    
Available-for-sale, less than 12 continuous months, fair value 70,402 17,552
Available-for-sale, greater than 12 continuous months, fair value 28,711 0
Available-for-sale, total securities in a loss position, fair value 99,113 17,552
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss [Abstract]    
Available-for-sale, less than 12 continuous months, unrealized loss (9,459) (381)
Available-for-sale, greater than 12 continuous months, unrealized loss (5,302) 0
Available-for-sale, total securities in a loss position, unrealized loss (14,761) (381)
Corporate bonds    
Debt Securities, Held-to-maturity, Continuous Unrealized Loss Position, Fair Value [Abstract]    
Less than 12 continuous months 28,448  
Greater than or equal to 12 continuous months 0  
Total Securities in a loss position 28,448  
Debt Securities, Held-to-maturity, Unrealized Loss Position, Accumulated Loss [Abstract]    
Less than 12 continuous months (1,552)  
Greater than or equal to 12 continuous months 0  
Held-to-maturity, gross unrealized losses (1,552)  
Debt Securities, Available-For-Sale, Continuous Unrealized Loss Position, Fair Value [Abstract]    
Available-for-sale, less than 12 continuous months, fair value 0 38,495
Available-for-sale, greater than 12 continuous months, fair value 33,276 0
Available-for-sale, total securities in a loss position, fair value 33,276 38,495
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss [Abstract]    
Available-for-sale, less than 12 continuous months, unrealized loss 0 (506)
Available-for-sale, greater than 12 continuous months, unrealized loss (3,714) 0
Available-for-sale, total securities in a loss position, unrealized loss (3,714) (506)
Asset-backed securities    
Debt Securities, Available-For-Sale, Continuous Unrealized Loss Position, Fair Value [Abstract]    
Available-for-sale, less than 12 continuous months, fair value 0 1,861
Available-for-sale, greater than 12 continuous months, fair value 1,462 0
Available-for-sale, total securities in a loss position, fair value 1,462 1,861
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss [Abstract]    
Available-for-sale, less than 12 continuous months, unrealized loss 0 (4)
Available-for-sale, greater than 12 continuous months, unrealized loss (91) 0
Available-for-sale, total securities in a loss position, unrealized loss $ (91) $ (4)