XML 51 R40.htm IDEA: XBRL DOCUMENT v3.22.2.2
Treasury Stock - Additional Information (Detail) - USD ($)
3 Months Ended 9 Months Ended
Sep. 30, 2022
Sep. 30, 2021
Sep. 30, 2022
Sep. 30, 2021
Dec. 31, 2021
Equity, Class of Treasury Stock [Line Items]          
Treasury stock, shares 8,684,000   8,684,000   8,684,000
Treasury stock, cost $ 782,104,000   $ 782,104,000   $ 782,104,000
Class A | Share Repurchase Program          
Equity, Class of Treasury Stock [Line Items]          
Shares repurchased program expiration date     Apr. 29, 2023    
Stock authorized to repurchase by board of directors $ 800,000,000.0   $ 800,000,000.0    
Treasury stock, shares repurchased 0 0 0 0  
Treasury stock, shares 5,674,226   5,674,226    
Shares repurchased, average price per share $ 104.13   $ 104.13    
Treasury stock, cost $ 590,900,000   $ 590,900,000    
Stock remaining available for repurchase $ 209,100,000   $ 209,100,000