Capital Stock - Schedule of Change in Treasury Shares (Detail) - shares	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Stockholders' Equity Note [Abstract]
Beginning balance	10,002,646	10,005,795
Rabbi trust shares distributed and/or sold	(1,111)	(3,149)
Shares repurchased	14,000,000	0
Ending balance	24,001,535	10,002,646