v3.22.2.2
Nature of the business and basis of presentation (Details)
$ / shares in Units, $ in Thousands
3 Months Ended 9 Months Ended
Aug. 17, 2021
USD ($)
shares
Aug. 13, 2021
$ / shares
shares
Jul. 19, 2021
USD ($)
shareholder
$ / shares
shares
Mar. 15, 2019
$ / shares
shares
Sep. 30, 2022
$ / shares
shares
Sep. 30, 2021
shares
Sep. 30, 2022
USD ($)
$ / shares
shares
Sep. 30, 2021
USD ($)
shares
Jun. 30, 2022
shares
May 16, 2022
Dec. 31, 2021
$ / shares
shares
Jun. 30, 2021
shares
Dec. 31, 2020
shares
Dec. 30, 2020
shares
Schedule of Equity Method Investments [Line Items]                            
Preferred stock, shares outstanding (in shares)                           1,145,568
Common stock, shares outstanding (in shares)         97,315,803   97,315,803       95,806,063     3,181,514
Share price (in dollars per share) | $ / shares   $ 16.00   $ 10.00                    
Capital stock shares authorized (in shares)     215,000,000                      
Common stock, par value (in dollars per share) | $ / shares     $ 0.00005 $ 0.00005 $ 0.00005   $ 0.00005       $ 0.00005      
Preferred stock, shares outstanding (in shares)         0   0       0      
Proceeds from issuance of common stock, net of offering costs | $ $ 4,600           $ 0 $ 277,753            
Convertible Preferred Stock                            
Schedule of Equity Method Investments [Line Items]                            
Preferred stock, shares outstanding (in shares)         0   0       0      
IPO                            
Schedule of Equity Method Investments [Line Items]                            
Stock issued during period, shares, new issues (in shares) 307,889 1,231,555 18,750,000                      
Sale of stock, stockholders | shareholder     1                      
Sale of stock, number of shares issued in transaction (in shares)     1,562,500                      
Proceeds from issuance of IPO | $     $ 277,800                      
IPO | Convertible Preferred Stock                            
Schedule of Equity Method Investments [Line Items]                            
Preferred stock, shares outstanding (in shares)     9,854,432                      
Temporary equity, aggregate amount of redemption requirement | $     $ 98,500                      
Over-Allotment Option                            
Schedule of Equity Method Investments [Line Items]                            
Stock issued during period, shares, new issues (in shares)   307,889                        
Common Stock                            
Schedule of Equity Method Investments [Line Items]                            
Common stock, shares outstanding (in shares)         97,315,803 90,554,571 97,315,803 90,554,571 96,491,418   95,806,063 29,281,514 29,281,514  
Stock issued during period, shares, new issues (in shares)         969,990 19,057,889 1,884,682 19,057,889            
Common Stock | IPO                            
Schedule of Equity Method Investments [Line Items]                            
Stock issued during period, shares, new issues (in shares)     20,312,500                      
Shares issued, price per share (in dollars per share) | $ / shares     $ 0.00005                      
Share price (in dollars per share) | $ / shares     $ 16.00                      
Preferred stock, shares outstanding (in shares)     27,368,102                      
Convertible preferred stock, shares issued upon conversion (in shares)     14,847,066                      
F Forty Five Aus Hold Co                            
Schedule of Equity Method Investments [Line Items]                            
Percentage of voting interests       100.00%                    
Stock issued pursuant to the SPA (in shares)       29,000,000                    
F45 Training Holdings                            
Schedule of Equity Method Investments [Line Items]                            
Ownership interest (percent)       72.50%                    
MWIG LLC                            
Schedule of Equity Method Investments [Line Items]                            
Share price (in dollars per share) | $ / shares       $ 10.00                    
MWIG LLC | F45 Training Holdings                            
Schedule of Equity Method Investments [Line Items]                            
Noncontrolling interest, ownership interest (percent)       27.50%                    
Club Sports Group, LLC | F45 Training Holdings | Shareholder | Lewis Management, LP                            
Schedule of Equity Method Investments [Line Items]                            
Noncontrolling interest, ownership interest (percent)                   10.00%