Capital Stock - Additional Information (Details) - USD ($)		3 Months Ended	12 Months Ended
	Feb. 18, 2021	Mar. 31, 2021	Dec. 31, 2020	Feb. 04, 2020
Class Of Stock [Line Items]
Common stock, Authorized		65,000,000.0	65,000,000.0
Common stock, par value		$ 0.01	$ 0.01
Preferred stock, authorized		1,000,000.0	1,000,000.0
Preferred stock, par value		$ 0.01	$ 0.01
Repurchases of common stock, shares		126,682	1,149,489
Repurchases of common stock, value		$ 3,400,000	$ 10,300,000
Shares repurchased average price		$ 26.92	$ 8.92
Stock repurchase program, remaining authorized amount		$ 46,700,000	$ 14,700,000
Common Stock
Class Of Stock [Line Items]
Outstanding common stock value authorized to repurchase under stock repurchase program	$ 50,000,000.0			$ 25,000,000.0
Stock Repurchase Program Expiration Date	Dec. 31, 2022