v3.26.1
Accumulated Other Comprehensive Income - Accumulated Other Comprehensive Income (Details) - USD ($)
$ in Thousands
 3 Months Ended
Mar. 31, 2026
Mar. 31, 2025
Accumulated Other Comprehensive Income [Line Items]    
Net unrealized gain (loss), tax expense (benefit), less than $ 69,000 $ 383,000
AOCI Attributable to Parent, Net of Tax [Roll Forward]    
Balance at beginning of period 49,425,000 48,375,000
Other net changes 226,000 1,227,000
Balance at end of period 49,234,000 49,511,000
Accumulated Other Comprehensive Income (Loss)    
AOCI Attributable to Parent, Net of Tax [Roll Forward]    
Balance at beginning of period (10,983,000) (14,848,000)
Other net changes 226,000 1,227,000
Balance at end of period (10,757,000) (13,621,000)
AOCI, Accumulated Gain (Loss), Debt Securities, Available-for-Sale, Parent    
Accumulated Other Comprehensive Income [Line Items]    
Net unrealized gain (loss), tax expense (benefit) 2,000 253,000
Other reclassifications included in other revenue, tax expense (benefit)   2,000
AOCI Attributable to Parent, Net of Tax [Roll Forward]    
Net unrealized gain (loss), net of tax expense (benefit) 6,000 808,000
Other reclassifications included in other revenue, net of tax expense (benefit)   8,000
Amortization of Held to Maturity Securities Transferred from Available for Sale Attributable to Parent    
Accumulated Other Comprehensive Income [Line Items]    
Net unrealized gain (loss), tax expense (benefit), less than 117,000 128,000
AOCI Attributable to Parent, Net of Tax [Roll Forward]    
Other net changes 379,000 410,000
AOCI, Cash Flow Hedge, Parent    
Accumulated Other Comprehensive Income [Line Items]    
Net unrealized gain (loss), tax expense (benefit), less than (54,000)  
Reclassifications, tax expense (benefit) 4,000  
AOCI Attributable to Parent, Net of Tax [Roll Forward]    
Net unrealized gain (loss), net of tax expense (benefit) (171,000)  
Other reclassifications included in other revenue, net of tax expense (benefit) 14,000  
Other Accumulated Other Comprehensive Income    
Accumulated Other Comprehensive Income [Line Items]    
Net unrealized gain (loss), tax expense (benefit), less than 500 500
AOCI Attributable to Parent, Net of Tax [Roll Forward]    
Other net changes $ (2,000) $ 1,000