Stock Repurchase Program - Additional Information (Detail) - USD ($)	1 Months Ended	2 Months Ended
	Dec. 31, 2019	Feb. 27, 2020	Jan. 31, 2020	Jun. 14, 2019
Accelerated Share Repurchases [Line Items]
Stock repurchase program authorized amount			$ 500,000,000.0	$ 500,000,000.0
Remaining amount available for further repurchases			$ 300,000,000.0
December 2019, ASR
Accelerated Share Repurchases [Line Items]
Stock repurchase program authorized amount	$ 100,000,000.0
Prepayment to repurchase stock	100,000,000.0
Initial share delivery	$ 80,000,000.0
December 2019, ASR | Subsequent Event
Accelerated Share Repurchases [Line Items]
Stock repurchase program, prepayment during prior period, derivative settlement		$ 20,000,000.0