Stockholders' Equity - Additional Information (Details) - USD ($) $ / shares in Units, shares in Millions			3 Months Ended	9 Months Ended
	Sep. 15, 2021	Aug. 25, 2021	Sep. 30, 2021	Sep. 30, 2021	Sep. 30, 2020	Feb. 25, 2016
Common stock dividends paid	$ 95,000,000.0			$ 284,800,000	$ 224,600,000
Dividends paid per common share (in dollars per share)		$ 1.00
Stock repurchase program, authorized amount						$ 200,000,000.0
Repurchases of common stock under stock repurchase program			0	0
Common stock repurchase authorization amount available			$ 193,000,000.0	$ 193,000,000.0