Credit Agreements and Short-term Financing - Additional Information (Detail) - USD ($)			3 Months Ended		6 Months Ended
	Aug. 09, 2023	Oct. 15, 2021	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Line Of Credit Facility [Line Items]
Interest expense on borrowings			$ 0	$ 0	$ 0	$ 100,000
Interest expense on short-term debt			500,000	100,000	800,000	100,000
Outstanding overdrafts payable			0		0
Collateralized Agreements [Member]
Line Of Credit Facility [Line Items]
Maximum available borrowings to subsidiary under agreement			500,000,000		500,000,000
Outstanding borrowings under agreement			0		0
Unused borrowing capacity, amount under agreement			$ 500,000,000		$ 500,000,000
Collateralized Agreements [Member] | Base Rate [Member]
Line Of Credit Facility [Line Items]
Interest rate, stated percentage			1.00%		1.00%
2021 Credit Agreement [Member]
Line Of Credit Facility [Line Items]
Revolving loans and letters of credit		$ 500,000,000
Expiration period of credit agreement		Oct. 15, 2024
Period of credit agreement		3 years
Sub-limit for letter of credit		$ 5,000,000
Sub-limit for swingline loans		$ 50,000,000
Interest expense on borrowings				$ 100,000		$ 100,000
Line of Credit Facility, Description					On October 15, 2021, the Company entered into a three-year revolving credit facility (the “2021 Credit Agreement”) provided by a syndicate of lenders and JPMorgan Chase Bank, N.A., as administrative agent
2023 Credit Agreement [Member]
Line Of Credit Facility [Line Items]
Period of credit agreement	3 years
Sub-limit for swingline loans	$ 380,000,000
Interest expense on borrowings			$ 200,000		$ 200,000
Line of Credit Facility, Description					On August 9, 2023, the Company replaced the 2021 Credit Agreement with a new three-year revolving credit facility (the “2023 Credit Agreement”) provided by a syndicate of lenders and JPMorgan Chase Bank, N.A., as administrative agent
Revolving Credit Facility [Member] | 2023 Credit Agreement [Member]
Line Of Credit Facility [Line Items]
Revolving loans and letters of credit	$ 750,000,000
Expiration period of credit agreement	Aug. 09, 2026
Period of credit agreement					364 days
Letter of credit outstanding			100,000		$ 100,000
Amount available under credit agreement			749,900,000		749,900,000
Additional borrowings under credit agreement			$ 375,000,000		$ 375,000,000
Standby Letters of Credit [Member] | 2023 Credit Agreement [Member]
Line Of Credit Facility [Line Items]
Sub-limit for letter of credit	$ 5,000,000