XML 100 R86.htm IDEA: XBRL DOCUMENT v3.22.4
Employee compensation plans - Summarizes of Company's Non-Vested ESP/EIP Awards (Details) - Class A Stock - Restricted Stock - $ / shares
12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Number of Class A Shares Subject to Restricted Stock  Awards    
Non-vested beginning of year (in shares) 1,542,716  
Granted (in shares) 403,823  
Vested (in shares) (156,477)  
Forfeited (in shares) (100,056)  
Non-vested end of year (in shares) 1,690,006 1,542,716
Weighted Average Fair Value Per Share    
Non-vested beginning of year (in dollars per share) $ 26.59  
Granted (in dollars per share) 38.80  
Vested (in dollars per share) 26.17  
Forfeited (in dollars per share) 28.27  
Non-vested end of year (in dollars per share) $ 29.42 $ 26.59
Weighted Average Remaining Contractual Life 1 year 10 months 24 days 2 years 2 months 12 days
Weighted Average Remaining Contractual Life, Granted 3 years 2 months 12 days