Stock Repurchase Plans - Schedule of Number of Shares Purchased and Maximum Value of Shares that May Yet Be Purchased Under the Plan (Detail) - USD ($) $ / shares in Units, $ in Thousands	1 Months Ended												12 Months Ended
	Dec. 31, 2022	Nov. 30, 2022	Oct. 31, 2022	Sep. 30, 2022	Aug. 31, 2022	Jul. 31, 2022	Jun. 30, 2022	May 31, 2022	Apr. 30, 2022	Mar. 31, 2022	Feb. 28, 2022	Jan. 31, 2022	Dec. 31, 2022	Dec. 31, 2021
Equity Class Of Treasury Stock [Line Items]
Total Number of Shares Purchased	7,064	2,946	23,905	539,864	835,877	769	164	553	1,154	0	950	65,419	1,478,665
Average Price Paid Per Share	$ 78.44	$ 78.12	$ 73.20	$ 75.34	$ 82.67	$ 71.17	$ 69.47	$ 71.92	$ 67.13	$ 0	$ 78.31	$ 84.24	$ 79.85
Maximum Value of Shares that May Yet Be Purchased Under the Plan	$ 200,000	$ 200,000	$ 200,000		$ 40,667	$ 75,002							$ 200,000	$ 200,000
Publicly Announced Plan [Member]
Equity Class Of Treasury Stock [Line Items]
Total Number of Shares Purchased	1,375,618			539,769	835,849