Annual report pursuant to Section 13 and 15(d)

STOCK-BASED COMPENSATION - Narrative (Details)

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STOCK-BASED COMPENSATION - Narrative (Details)
$ in Thousands
 2 Months Ended 12 Months Ended
Jun. 21, 2021
shares
Jun. 17, 2021
shares
Dec. 31, 2020
shares
Mar. 03, 2022
USD ($)
shares
Dec. 31, 2021
USD ($)
shares
Dec. 31, 2020
USD ($)
shares
Dec. 31, 2019
USD ($)
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]              
Recapitalization exchange ratio     0.233        
Common stock outstanding (shares) 125,753,000            
Options outstanding (shares)     18,093,000   14,749,000 18,093,000  
Stock-based compensation expense | $         $ 4,455 $ 3,519 $ 5,884
Total unrecognized compensation expense, option | $         5,900    
The total intrinsic value of stock options exercised | $         $ 17,600 $ 19,600 $ 1,200
Class B common stock              
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]              
Common stock outstanding (shares) 16,130,000   18,977,000   16,130,000 18,977,000  
2011 Plan              
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]              
Aggregate number of authorized shares   16,700,000          
Maximum annual increase in number of shares of common stock issued and outstanding   5.00%          
Cash Electing Share              
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]              
Recapitalization exchange ratio 0.233            
Stock options              
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]              
Remaining average period cost expected to be recognized over         1 year 7 months 6 days    
Stock options | 2011 Plan              
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]              
Maximum term         10 years    
Stock options | 2011 Plan | Minimum              
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]              
Vesting period         3 years    
Stock options | 2011 Plan | Maximum              
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]              
Vesting period         4 years    
RSUs | Subsequent Event              
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]              
Total unrecognized compensation expense, option | $       $ 32,500      
Remaining average period cost expected to be recognized over       2 years 8 months 12 days      
Granted (shares)       7,600,000      
Mr. Pascal              
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]              
Stock-based compensation expense | $         $ 1,100    
Founder Group | Founder Group | Class B common stock              
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]              
Common stock outstanding (shares) 16,100,000            
Voting percent 74.60%            
Options outstanding (shares) 2,200,000