Stock-based Compensation Plans - Additional Information 3 (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Stock-based compensation (income) expense	$ 10,527	$ 10,153	$ 21,095	$ 19,375
Performance-based PS-PSUs and RS-PSUs
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Vesting period			3 years
Performance Share
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Stock-based compensation (income) expense			$ 1,800	1,800
Performance Based TSR - PSUs
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Vesting period			3 years
Stock-based compensation expense			$ 1,200	$ 1,500