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Restricted Stock Units Issued (Detail) - Restricted Stock Units (RSUs) - $ / shares	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Restricted Stock Units
Beginning Restricted Stock Units	43,799	49,182
Restricted Stock Units Granted	2,646	3,595
Dividend Equivalents Earned	1,442	1,258
Restricted Stock Units Settled	(14,512)	(10,236)
Ending Restricted Stock Units	33,375	43,799
Weighted-Average Stock Price
Beginning Restricted Stock Units	$ 40.17	$ 41.67
Restricted Stock Units Granted	42.31	46.72
Dividend Equivalents Earned	50.53	53.2
Restricted Stock Units Settled	35.69	51.28
Ending Restricted Stock Units	$ 42.73	$ 40.17

X

- Definition

The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 718
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (c)(2)(iii)(01)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480429/718-10-50-2

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