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Redeemable Preferred Stock - Narrative (Details)
$ / shares in Units, $ in Millions
 3 Months Ended 9 Months Ended
May 17, 2021
$ / shares
shares
Aug. 31, 2017
USD ($)
$ / shares
shares
Mar. 31, 2021
USD ($)
Sep. 30, 2021
lease_renewal_option
$ / shares
shares
Jan. 27, 2021
$ / shares
Dec. 31, 2020
$ / shares
shares
Temporary Equity [Line Items]            
Proceeds from issuance of preferred shares | $     $ 248.3      
Common stock, par value (in USD per share) | $ / shares       $ 0.01 $ 0.01 $ 0.01
Preferred stock, shares outstanding (shares) | shares       0   0
Conversion of Series A Preferred Stock into Common Stock            
Temporary Equity [Line Items]            
Common stock, par value (in USD per share) | $ / shares $ 0.01          
Series A Preferred Stock            
Temporary Equity [Line Items]            
Preferred stock dividend rate (percent)       10.00%    
Trading days | lease_renewal_option       20    
Consecutive trading days | lease_renewal_option       30    
Threshold share price (in USD per share) | $ / shares       $ 42.00    
Preferred stock, shares outstanding (shares) | shares 0          
Common Stock | Conversion of Series A Preferred Stock into Common Stock            
Temporary Equity [Line Items]            
Shares of common stock issued in conversion (shares) | shares 22,609,000          
Bain Capital Private Equity, L.P. | Series A Preferred Stock            
Temporary Equity [Line Items]            
Stock issued during period (shares) | shares   310,000        
Purchase price per share (in USD per share) | $ / shares   $ 1,000        
Proceeds from issuance of preferred shares | $   $ 310.0