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Financing and Trade Receivables - Narrative (Details) - USD ($)
$ in Millions
9 Months Ended
Sep. 30, 2022
Dec. 31, 2021
Dec. 31, 2020
Financing Receivable, Allowance for Credit Loss [Line Items]      
Net unamortized discount on financing receivable $ 16.7 $ 16.7  
Period after due date considered past due 21 days    
Financing receivable, allowance for credit loss $ 57.9 65.9 $ 66.8
Financing receivable, allowance for credit loss, current 20.6 23.4  
Financing receivable, allowance for credit losses $ 37.3 42.5  
PSAs      
Financing Receivable, Allowance for Credit Loss [Line Items]      
Financing receivable, period for uncollectible status 180 days    
Financing receivable, allowance for credit loss $ 46.3 54.1 54.3
Financing receivable, allowance for credit loss, current 14.5 16.9  
Financing receivable, allowance for credit losses $ 31.8 37.2  
PSAs | Maximum      
Financing Receivable, Allowance for Credit Loss [Line Items]      
Financing receivable, payment terms 5 years    
Franchisee Notes      
Financing Receivable, Allowance for Credit Loss [Line Items]      
Financing receivable, period for uncollectible status 1 year    
Financing receivable, allowance for credit loss $ 11.6 11.8 $ 12.5
Financing receivable, allowance for credit loss, current 6.1 6.5  
Financing receivable, allowance for credit losses $ 5.5 $ 5.3  
Franchisee Notes | Maximum      
Financing Receivable, Allowance for Credit Loss [Line Items]      
Financing receivable, payment terms 10 years