Capital Stock - Additional Information (Detail) - USD ($) $ in Millions	3 Months Ended	9 Months Ended
	Sep. 30, 2023	Sep. 30, 2023	Dec. 31, 2022
Class of Stock Disclosures [Abstract]
Authorized capital stock	485,000,000	485,000,000
Common stock, shares authorized	475,000,000	475,000,000	475,000,000
Preferred stock, shares authorized	10,000,000	10,000,000	10,000,000
Preferred stock, shares issued	0	0	0
Preferred stock, shares outstanding	0	0	0
Stock repurchase program, additional authorized amount	$ 1,100.0	$ 1,100.0
Shares repurchased, shares	0	400,000
Share repurchase, aggregate cost	$ 9.7	$ 9.7