Quarterly report pursuant to Section 13 or 15(d)

Stockholders' Equity (Details)

v3.22.2.2
Stockholders' Equity (Details) - USD ($)
shares in Millions
3 Months Ended 9 Months Ended
Jan. 01, 2022
Sep. 30, 2022
Sep. 30, 2021
Sep. 30, 2022
Sep. 30, 2021
Oct. 06, 2021
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Awards granted (in shares)       1.0    
Stock option exercises (in shares)   0.2 0.0 0.3 0.0  
Stock options outstanding (in shares)   25.1   25.1    
Stock options exercisable (in shares)   21.8   21.8    
Unrecognized share-based compensation expense, options   $ 20,100,000   $ 20,100,000    
Share-based compensation   $ 5,803,000 $ 1,794,000 $ 33,214,000 $ 2,924,000  
ESPP            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Shares reserved for issuance (in shares)   2.9   2.9    
Annual increase in shares authorized, percent   1.00%   1.00%    
Maximum shares available for issuance (in shares)   29.0   29.0    
Maximum employee common stock purchase, percent   15.00%   15.00%    
Purchase price of commons stock, percent       90.00%    
Stock options            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Contractual term       10 years    
Vesting period       4 years    
Share-based compensation expense   $ 2,700,000 0 $ 17,400,000 0  
Unrecognized share-based compensation expense, period of recognition       2 years 10 months 24 days    
Stock options | Center operations            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Share-based compensation expense   200,000   $ 1,500,000    
Stock options | General, administrative and marketing            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Share-based compensation expense   2,400,000   15,400,000    
Stock options | Other operating income/expense            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Share-based compensation expense   100,000   500,000    
Restricted stock units            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Share-based compensation expense   $ 3,100,000 1,800,000 $ 10,800,000 2,900,000  
Unrecognized share-based compensation expense, period of recognition       3 years 1 month 6 days    
Awards granted (in shares)       1.6    
Share-based compensation       $ 500,000    
Awards outstanding (in shares)   2.8   2.8    
Unrecognized share-based compensation expense   $ 35,300,000   $ 35,300,000    
Restricted stock units | Share-based Payment Arrangement, Tranche One            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Vesting period       4 years    
Awards granted (in shares)       1.5    
Vesting percentage       50.00%    
Restricted stock units | Share-based Payment Arrangement, Tranche Two            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Vesting period       2 years    
Awards granted (in shares)       0.1    
Restricted stock units | Share-Based Payment Arrangement, Tranche Three            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Vesting period       1 year    
Awards granted (in shares)       0.1    
Restricted stock units | Center operations            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Share-based compensation expense   400,000   $ 900,000    
Restricted stock units | General, administrative and marketing            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Share-based compensation expense   2,600,000   9,700,000    
Restricted stock units | Other operating income/expense            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Share-based compensation expense   100,000   $ 200,000    
Time vesting restricted stock units            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Awards granted (in shares)       1.3    
Performance vesting restricted stock units            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Awards granted (in shares)       0.3    
Outstanding shares of Series A Preferred Stock            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Share-based compensation expense     0 $ 5,000,000 0  
Restricted Series A Preferred Stock            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Share-based compensation expense   $ 0 $ 2,300,000 $ 0 $ 4,000,000  
2021 Equity Plan            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Shares reserved for issuance (in shares)           14.5
Annual increase in shares authorized, percent   4.00%   4.00%    
Additional shares available for issuance (in shares) 7.7          
Term of plan       10 years    
Shares available for future grants (in shares)   19.1   19.1    
2015 Equity Plan            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Shares available for issuance (in shares)           1.0