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Fair Value Measurements - Impairment of Assets Measured at Fair Value on a Nonrecurring Basis Narrative (Details) - USD ($)
$ in Millions
3 Months Ended 12 Months Ended
Mar. 31, 2021
Dec. 31, 2020
Sep. 30, 2022
Sep. 30, 2020
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Operating Lease, Impairment Loss $ 23.5 $ 6.7   $ 9.7
Fair Value, Nonrecurring        
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Impairment of Intangible Assets (Excluding Goodwill)     $ 6.2  
Fair Value, Nonrecurring | Fair Value, Inputs, Level 3        
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Operating Lease, Impairment Loss 23.5 6.7   $ 9.7
Tangible Asset Impairment Charges $ 10.3 $ 0.2