Stock-Based Compensation (Detail) - (Table 6) - $ / shares	6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Roll Forward]
Non-vested at January 1	2,111,000	2,849,000
Non-vested at January 1 (in Dollars per share)	$ 28.45	$ 23.80
Non-vested at March 31	2,145,000	2,963,000
Non-vested at March 31 (in Dollars per share)	$ 28.23	$ 25.30
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeitures, Weighted Average Grant Date Fair Value	$ 39.87	$ 33.18
Employee Service Share-based Compensation, Nonvested Awards, Total Compensation Cost Not yet Recognized, Period for Recognition	3 years 1 month 6 days