Expected Defined Benefit Plans Contribution Within One Year

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- Definition

Number of stock plans

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Pension Plans, Postretirement and Other Employee Benefits [Line Items]

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No definition available.

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- Definition

Percentage of equity investments in mutual fund

+ References

No definition available.

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- Definition

Weighted average rate of return on plan assets, reflecting average rate of earnings expected on existing plan assets and expected contributions, used to determine net periodic benefit cost of defined benefit plan.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 715
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 8
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480506/715-20-50-8

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- Definition

Percentage of target investment allocation to total plan assets. Includes, but is not limited to, percentage on weighted-average basis if more than one plan.

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Topic 715
-SubTopic 20
-Name Accounting Standards Codification
-Section 55
-Paragraph 17
-Publisher FASB
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- Definition

Amount of cost for defined contribution plan.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 715
-SubTopic 70
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480794/715-70-50-1

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- Definition

Percentage of employees' gross pay for which the employer contributes a matching contribution to a defined contribution plan.

+ References

No definition available.

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- Definition

Percentage employer matches of the employee's percentage contribution matched.

+ References

No definition available.

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- Definition

Maximum percentage of employee gross pay the employee may contribute to a defined contribution plan.

+ References

No definition available.

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- Definition

Amount of paid and unpaid cash, stock, and paid-in-kind dividends declared for award under share-based payment arrangement.

+ References

No definition available.

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- Definition

Period over which grantee's right to exercise award under share-based payment arrangement is no longer contingent on satisfaction of service or performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Includes, but is not limited to, combination of market, performance or service condition.

+ References

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-Topic 718
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- 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
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-SubTopic 10
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-Section 50
-Paragraph 2
-Subparagraph (c)(2)(iii)(01)
-Publisher FASB
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- Definition

The risk-free interest rate assumption that is used in valuing an option on its own shares.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 718
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
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- Definition

Number of additional shares authorized for issuance under share-based payment arrangement.

+ References

No definition available.

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- Definition

Number of shares authorized for issuance under share-based payment arrangement.

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-Section 50
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- Definition

The difference between the maximum number of shares (or other type of equity) authorized for issuance under the plan (including the effects of amendments and adjustments), and the sum of: 1) the number of shares (or other type of equity) already issued upon exercise of options or other equity-based awards under the plan; and 2) shares (or other type of equity) reserved for issuance on granting of outstanding awards, net of cancellations and forfeitures, if applicable.

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- Definition

Gross number of share options (or share units) granted during the period.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 718
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
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- Definition

Period from grant date that an equity-based award expires, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

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- Definition

Amount of difference between fair value of the underlying shares reserved for issuance and exercise price of vested portions of options outstanding and currently exercisable.

+ References

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- Definition

The weighted average price as of the balance sheet date at which grantees could acquire the underlying shares with respect to all outstanding stock options which are in the customized range of exercise prices.

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- Definition

Weighted average remaining contractual term of outstanding stock options, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Employee Benefit Plans (Narrative) (Detail) - USD ($)		12 Months Ended
Employee Benefit Plans (Narrative) (Detail) - USD ($)	Apr. 24, 2024	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Pension Plans, Postretirement and Other Employee Benefits [Line Items]
Percentage of equity investments in mutual fund		74.00%
Net periodic benefit cost, Expected return on plan assets		5.70%	7.00%	7.25%
Expected defined benefit plans contribution within a year		$ 1,100,000
Participants contribution eligible for match		100.00%
Defined contribution plan, cost		$ 30,400,000	$ 32,300,000	$ 28,000,000.0
Number of stock plans		3
Options awarded during period		0	0	0
Dividends, share-based compensation		$ 0.95	$ 0.92	$ 0.87
Weighted-average risk-free interest rate		4.09%	5.01%	4.45%
Performance Shares [Member]
Pension Plans, Postretirement and Other Employee Benefits [Line Items]
Share-based compensation arrangement by share-based payment award, number of shares available for grant		2,361,570
Performance Shares [Member] \| Pro Forma [Member]
Pension Plans, Postretirement and Other Employee Benefits [Line Items]
Granted in period, number of shares/units		21,554	66,471	35,015
Share-based Payment Arrangement, Option [Member]
Pension Plans, Postretirement and Other Employee Benefits [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Expiration Period		10 years
Weighted-Average Exercise Price, Options Outstanding		$ 65.11
Weighted- Average Remaining Contractual Life in Years		9 months 25 days
Options Exercisable [Member]
Pension Plans, Postretirement and Other Employee Benefits [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Intrinsic Value		$ 12,700,000
Equity Securities [Member]
Pension Plans, Postretirement and Other Employee Benefits [Line Items]
Target asset allocation percentage		31.00%
Fixed Income Securities [Member]
Pension Plans, Postretirement and Other Employee Benefits [Line Items]
Target asset allocation percentage		64.00%
Two Thousand Twenty-Four Plan [Member]
Pension Plans, Postretirement and Other Employee Benefits [Line Items]
Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Shares Authorized	2,576,038
Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Additional Shares Authorized	2,350,000
Two Thousand Twenty-Four Plan [Member] \| Stock Options [Member]
Pension Plans, Postretirement and Other Employee Benefits [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Expiration Period		10 years
Vesting period of options awarded, years		4 years
Two Thousand Twenty-Four Plan [Member] \| Non Vested Stock Awards and Stock Units [Member] \| Prior to 2021
Pension Plans, Postretirement and Other Employee Benefits [Line Items]
Vesting period of options awarded, years		4 years
Two Thousand Twenty-Four Plan [Member] \| Non Vested Stock Awards and Stock Units [Member] \| 2023
Pension Plans, Postretirement and Other Employee Benefits [Line Items]
Vesting period of options awarded, years		3 years
Two Thousand Twenty-Four Plan [Member] \| Non Vested Stock Awards and Stock Units [Member] \| 2022
Pension Plans, Postretirement and Other Employee Benefits [Line Items]
Vesting period of options awarded, years		3 years
Two Thousand Twenty-Four Plan [Member] \| Non Vested Stock Awards and Stock Units [Member] \| 2024
Pension Plans, Postretirement and Other Employee Benefits [Line Items]
Vesting period of options awarded, years		3 years
Superseded 2015 Plan [Member]
Pension Plans, Postretirement and Other Employee Benefits [Line Items]
Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Shares Authorized	226,038
Minimum [Member]
Pension Plans, Postretirement and Other Employee Benefits [Line Items]
Maximum annual contributions per employee, percent		2.00%
Maximum [Member]
Pension Plans, Postretirement and Other Employee Benefits [Line Items]
Maximum annual contributions per employee, percent		50.00%
Employer matching contribution, percent of employees' gross pay		6.00%
Maximum [Member] \| Performance Shares [Member]
Pension Plans, Postretirement and Other Employee Benefits [Line Items]
Granted in period, number of shares/units		32,334	99,710	52,527