Shareholders' Equity (Detail) - USD ($) $ / shares in Units, shares in Millions	1 Months Ended	3 Months Ended						9 Months Ended
	Dec. 31, 2020	Sep. 30, 2025	Jun. 30, 2025	Mar. 31, 2025	Sep. 30, 2024	Jun. 30, 2024	Mar. 31, 2024	Sep. 30, 2025	Dec. 31, 2024	Dec. 01, 2020
Stockholders Equity Note Disclosure [Line Items]
Share repurchases		$ 50,000,000.0	$ 75,000,000.0	$ 50,000,000.0	$ 50,000,000.0	$ 50,000,000.0		$ 175,000,000.0
Dividends (in dollars per share)		$ 0.25	$ 0.25	$ 0.25	$ 0.23	$ 0.23	$ 0.23
Dividends payable		$ 41,000,000.0						$ 41,000,000.0	$ 41,200,000
December 2020 Share Repurchase Program
Stockholders Equity Note Disclosure [Line Items]
Repurchase of shares of our common stock up to a maximum aggregate value										$ 750,000,000.0
Common stock authorized for repurchase, expiration date	Dec. 31, 2025
Share repurchase (in shares)								1.8
Share repurchase program remaining available amount		$ 275,000,000.0						$ 275,000,000.0