Schedule of Measurement Dates (Detail)	12 Months Ended
Dec. 31, 2023	Dec. 31, 2022
Benefit Obligation
Defined Benefit Plan Disclosure [Line Items]
Measurement Dates	Dec. 31, 2023	Dec. 31, 2022
Fair Value Of Plan Assets
Defined Benefit Plan Disclosure [Line Items]
Measurement Dates	Dec. 31, 2023	Dec. 31, 2022

Month-end measurement date applicable when an accounting policy election is made to measure plan assets and benefit obligations as of the month-end that is closest to the fiscal year-end, in YYYY-MM-DD format.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Subparagraph (u)
-SubTopic 20
-Topic 715
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480506/715-20-50-1

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:dateItemType
Balance Type:	na
Period Type:	duration