Capital Stock - Additional Information (Detail) - USD ($)	3 Months Ended
	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2021	Dec. 31, 2020	Oct. 31, 2019
Class Of Stock Disclosures [Abstract]
Authorized capital stock					485,000,000.0
Common stock, shares authorized					475,000,000	475,000,000
Preferred stock, shares authorized					10,000,000	10,000,000
Common dividends declared per share	$ 0.02	$ 0.02	$ 0.02	$ 0.02
New stock purchase program, approved amount							$ 100,000,000
Maximum
Class Of Stock Disclosures [Abstract]
New stock purchase program, approved amount					$ 500,000,000.0