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Restricted Cash Balances - Narrative (Details) - USD ($)
$ in Millions
Mar. 31, 2024
Dec. 31, 2023
Restricted Cash and Cash Equivalents Items [Line Items]    
Restricted Cash and Cash Equivalents $ 0.0 $ 0.0
Pledged Cash for Derivative Contracts 2.9 3.3
Cash Collateral 124.3 $ 125.2
Standby Letters of Credit    
Restricted Cash and Cash Equivalents Items [Line Items]    
Restricted Cash And Restricted Cash Equivalents $ 57.3