v3.22.1
STOCKHOLDERS' EQUITY (Details) - USD ($)
$ / shares in Units, $ in Millions
3 Months Ended
Mar. 31, 2022
Mar. 31, 2021
Dec. 31, 2021
STOCKHOLDERS' EQUITY      
Gross proceeds   $ 581.6  
Other financing costs $ 17.7 $ 19.0  
Total estimated unrecognized compensation cost related to nonvested stock-based compensation arrangements $ 52.5    
Weighted average period recognized 1 year 1 month 6 days    
Dividends      
Dividends and dividend equivalents $ 0.7    
Class A common stock      
STOCKHOLDERS' EQUITY      
Number of shares authorized 524,173,073   524,173,073
Sell price per share $ 0.01   $ 0.01