Capital Stock - Additional Information (Details) - USD ($) $ / shares in Units, $ in Millions		3 Months Ended		6 Months Ended
	Feb. 18, 2021	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021	Feb. 17, 2022	Dec. 31, 2021
Class Of Stock [Line Items]
Common stock, Authorized		65,000,000.0		65,000,000.0			65,000,000.0
Common stock, par value		$ 0.01		$ 0.01			$ 0.01
Preferred stock, authorized		1,000,000.0		1,000,000.0			1,000,000.0
Preferred stock, par value		$ 0.01		$ 0.01			$ 0.01
Repurchases of common stock, shares		2,180,796	250,567	3,408,099	377,249
Repurchases of common stock, value		$ 64.4	$ 7.1	$ 106.5	$ 10.5
Shares repurchased average price		$ 29.54	$ 28.19	$ 31.24	$ 27.76
Stock repurchase program, remaining authorized amount		$ 58.6		$ 58.6
Common Stock
Class Of Stock [Line Items]
Outstanding common stock value authorized to repurchase under stock repurchase program						$ 150.0
Stock Repurchase Program Expiration Date	Dec. 31, 2023