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Leases and Other Finance Obligations - Other Finance Obligations - Additional Information (Detail)
$ in Millions
 3 Months Ended 9 Months Ended
Sep. 30, 2021
USD ($)
Property
Sep. 30, 2021
USD ($)
Property
Other Finance Obligations [Line Items]    
Number of leased properties with single lessor | Property 121 121
Other finance obligation, renewal term   5 years
Total lease term   30 years
Master lease agreement description   Company is party to 121 individual property lease agreements with a single lessor as of September 30, 2021. These lease agreements had initial terms ranging from nine to 15 years with renewal options in five-year increments providing for up to approximately 30-year total lease terms.
Other finance obligations $ 203.5 $ 203.5
Payment of other finance obligation $ 5.2 $ 15.9
Minimum    
Other Finance Obligations [Line Items]    
Other finance obligation, term   9 years
Maximum    
Other Finance Obligations [Line Items]    
Other finance obligation, term   15 years