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Derivative Financial Instruments - Schedule of Cumulative Basis Adjustments For Fair Value Hedges (Parenthetical) (Details)
$ in Millions
Sep. 30, 2022
USD ($)
Derivative Instruments and Hedging Activities Disclosure [Abstract]  
Amortized cost basis of closed portfolios used in hedging relationships $ 33.4
Cumulative basis adjustments associated with hedging relationships 1.1
Designated hedged items $ 20.0