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Restricted Cash Balances - Narrative (Details) - USD ($)
$ in Millions
Sep. 30, 2023
Dec. 31, 2022
Restricted Cash and Cash Equivalents Items [Line Items]    
Restricted Cash and Cash Equivalents $ 0.0 $ 0.0
Pledged Cash for Derivative Contracts 3.3 2.7
Cash Collateral 145.6 $ 131.5
Standby Letters of Credit    
Restricted Cash and Cash Equivalents Items [Line Items]    
Restricted Cash And Restricted Cash Equivalents $ 56.0