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Summary of Significant Accounting Policies - Narrative (Details) - USD ($)
9 Months Ended
Sep. 30, 2021
Dec. 31, 2020
Lessee, Lease, Description [Line Items]    
Lessor, direct financing lease, term of contract 20 years  
Sell-through promotion, useful life 2 years  
Restricted cash   $ 0
Buildings Capitalized    
Lessee, Lease, Description [Line Items]    
Property, plant and equipment, useful life 20 years  
Minimum    
Lessee, Lease, Description [Line Items]    
Franchise, term of contract 15 years  
Minimum | Software and Hardware    
Lessee, Lease, Description [Line Items]    
Lessor, operating lease, term of contract 3 years  
Maximum    
Lessee, Lease, Description [Line Items]    
Franchise, term of contract 20 years  
Maximum | Software and Hardware    
Lessee, Lease, Description [Line Items]    
Lessor, operating lease, term of contract 5 years