XML 79 R64.htm IDEA: XBRL DOCUMENT v3.22.4
Stock-Based Compensation - Stock Option Plans (Details)
$ in Millions
12 Months Ended
Dec. 31, 2022
USD ($)
plan
shares
Dec. 31, 2021
USD ($)
shares
Dec. 31, 2020
USD ($)
shares
Dec. 31, 2015
shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Share based compensation, number of stock incentive plans | plan 2      
Options granted (in shares) | shares 0 0 0  
Intrinsic value of options exercised | $ $ 31.1 $ 39.1 $ 17.9  
Intrinsic value of options outstanding | $ $ 47.7      
Class A common stock        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Aggregate number of shares reserved for stock incentive plan (in shares) | shares 4,450,726     2,000,000