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Long-Term Debt (Narrative) (Details) - Revolving Credit Facility Maturing In 2026 [Member]
$ in Millions
Jun. 30, 2022
USD ($)
Debt Instrument [Line Items]  
Maximum borrowing capacity $ 250
Revolving Credit Facility [Member]  
Debt Instrument [Line Items]  
Available borrowing capacity 248
Letter of Credit [Member]  
Debt Instrument [Line Items]  
Maximum borrowing capacity $ 2