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Investment Securities - Narrative (Details) - USD ($)
12 Months Ended
Feb. 01, 2022
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Schedule of Held-to-maturity Securities [Line Items]        
Debt Securities, Held-to-Maturity, Amortized Cost, after Allowance for Credit Loss, Transfer, Amount $ 10,700,000      
Debt Securities, Held-To-Maturity, After Allowance for Credit Loss, Transfer, Amount 10,900,000      
Debt Securities, Available-for-Sale, Amortized Cost, after Allowance for Credit Loss, Transfer, Amount 485,900,000      
Debt Securities, Available-for-Sale, after Allowance for Credit Loss, Transfer, Amount 463,600,000      
Debt Securities, Held-to-maturity, Transfer to Trading, Unrealized Gain (Loss) $ 0      
Debt Securities, Available-for-sale, Allowance for Credit Loss   $ 0 $ 0  
Debt Securities, Available-for-sale, Realized Loss   (46,800,000) (2,100,000) $ 0
Debt Securities, Available-for-sale, Realized Gain   300,000 $ 3,200,000 $ 0
Gain (Loss) on Fair Value Hedges Recognized in Earnings   (46,300,000)    
Debt Securities, Held-to-maturity, Nonaccrual   0    
Treasury Security        
Schedule of Held-to-maturity Securities [Line Items]        
Debt Securities, Available-for-sale, Realized Loss   22,100,000    
Collateral        
Schedule of Held-to-maturity Securities [Line Items]        
Debt Securities   0    
Treasury Security        
Schedule of Held-to-maturity Securities [Line Items]        
Debt Securities, Available-for-sale, Realized Loss   $ 24,200,000