Post-effective amendment to a registration statement that is not immediately effective upon filing

Stock-Based Compensation - Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions (Details)

v3.22.0.1
Stock-Based Compensation - Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions (Details) - $ / shares
12 Months Ended
Dec. 31, 2021
Jun. 30, 2020
Jun. 30, 2019
Oct. 20, 2021
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
MIR Stock Price       $ 10.00
Expected volatility(1)   55.70% 25.10%  
Risk-free interest rate(2)   0.20% 2.70%  
Dividend yield   0.00% 0.00%  
Expected term (in years) (4)   3 years 2 years  
Fair value (in dollars per share)   $ 0.37 $ 0.16  
PSUs        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
MIR Stock Price $ 10.70      
Expected volatility(1) 41.12%      
Risk-free interest rate(2) 0.98%      
Dividend yield 0.00%      
Fair value (in dollars per share) $ 7.91      
Profits Interests        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Cost of equity (1) 8.50%      
Expected volatility(1) 30.00%      
Risk-free interest rate(2) 0.10%      
Expected term (in years) (4) 5 years      
Fair value (in dollars per share) $ 6.90