Stockholders' Equity and Earnings Per Common Share - Additional Information (Detail) - USD ($) $ / shares in Units, $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Stockholders Equity and Earnings Per Common Share Additional Information [Line Items]
Antidilutive Securities Excluded from Computation of Earnings Per Share	500,000	100,000	1,100,000
Treasury Stock, Retired, Cost Method, Amount	$ 3,642.5
Authorized Shares of Preferred Stock	25,000,000
Par Value Per Share of Preferred Stock	$ 0.10
Issued Shares of Preferred Stock	0
Common Class A
Stockholders Equity and Earnings Per Common Share Additional Information [Line Items]
Treasury Stock, Shares, Retired	115,000,000