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Accumulated Other Comprehensive Income (Loss) - Schedule of AOCI (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
AOCI Attributable to Parent, Net of Tax [Roll Forward]      
Beginning Balance $ 3,012,018 $ 2,972,656 $ 2,852,453
Other comprehensive income (loss) before       reclassifications (798,735) (143,515) 103,826
Amounts reclassified from AOCI to income 14,688 (6,631) (12,262)
Ending Balance 5,128,595 3,012,018 2,972,656
Accumulated Other Comprehensive Income (Loss)      
AOCI Attributable to Parent, Net of Tax [Roll Forward]      
Beginning Balance (2,375) 147,771 56,207
Ending Balance (786,422) (2,375) 147,771
Unrealized Gains and Losses on Available- for-Sale Debt Securities      
AOCI Attributable to Parent, Net of Tax [Roll Forward]      
Beginning Balance (2,950) 145,335 56,131
Other comprehensive income (loss) before       reclassifications (639,463) (144,948) 97,596
Amounts reclassified from AOCI to income 67 (3,337) (8,392)
Ending Balance (642,346) (2,950) 145,335
Unrealized Gains and Losses on Held-to- Maturity Securities      
AOCI Attributable to Parent, Net of Tax [Roll Forward]      
Beginning Balance 0 0 0
Other comprehensive income (loss) before       reclassifications (125,229) 0 0
Amounts reclassified from AOCI to income 12,565 0 0
Ending Balance (112,664) 0 0
Gains and Losses on Cash Flow Hedges      
AOCI Attributable to Parent, Net of Tax [Roll Forward]      
Beginning Balance 543 2,584 240
Other comprehensive income (loss) before       reclassifications (34,043) 1,433 6,230
Amounts reclassified from AOCI to income 1,951 (3,474) (3,886)
Ending Balance (31,549) 543 2,584
Defined Benefit Pension Plans      
AOCI Attributable to Parent, Net of Tax [Roll Forward]      
Beginning Balance 32 (148) (164)
Other comprehensive income (loss) before       reclassifications 0 0 0
Amounts reclassified from AOCI to income 105 180 16
Ending Balance $ 137 $ 32 $ (148)