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Derivative Instruments and Hedging Activities (Gains or Losses Recognized in AOCI for the Cash Flow Hedges) (Details)
$ in Millions
Sep. 30, 2023
USD ($)
Interest Rate Contract [Member]  
Accumulated Derivative Gain/Loss in AOCI [Roll Forward]  
Portion expected to be reclassified to earnings in the next twelve months $ (0.8)