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Summary of Significant Accounting Policies - Additional Information (Details) - USD ($)
$ in Millions
3 Months Ended
Mar. 31, 2021
Dec. 31, 2020
New Accounting Pronouncements or Change in Accounting Principle [Line Items]    
Estimated membership upgrade contract term 20 years  
Cash and cash equivalents, restricted cash $ 27.6 $ 24.1
Minimum    
New Accounting Pronouncements or Change in Accounting Principle [Line Items]    
Lessor operating lease term 1 month  
Maximum    
New Accounting Pronouncements or Change in Accounting Principle [Line Items]    
Lessor operating lease term 6 months