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Percentage of Award’s Vested Share Payout on Stock Return

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Share based compensation arrangement by share based payment award equity instruments other than options non cash compensation.

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Share based compensation arrangement by share based payment award equity instruments other than options potential vest, maximum.

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Share based compensation arrangement by share based payment award equity Instruments other than options potential vest minimum.

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Amount of expense for award under share-based payment arrangement. Excludes amount capitalized.

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Aggregate number of common shares reserved for future issuance.

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Amount of cost not yet recognized for nonvested award under share-based payment arrangement.

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Weighted-average period over which cost not yet recognized is expected to be recognized for award under share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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Amount of tax benefit for recognition of expense of award under share-based payment arrangement.

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Amount of tax benefit from exercise of option under share-based payment arrangement.

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Estimated period over which an employee is required to provide service in exchange for the equity-based payment award, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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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.

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The weighted average fair value at grant date for nonvested equity-based awards issued 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).

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Weighted average remaining contractual term for equity-based awards excluding options, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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The number of equity-based payment instruments, excluding stock (or unit) options, that vested during the reporting period.

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Fair value of share-based awards for which the grantee gained the right by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash.

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Agreed-upon price for the exchange of the underlying asset relating to the share-based payment award.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Amount of accumulated difference between fair value of underlying shares on dates of exercise and exercise price on options exercised (or share units converted) into shares.

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Percentage of vesting of award under share-based payment arrangement.

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Intrinsic value of outstanding award under share-based payment arrangement. Excludes share and unit options.

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Share-based compensation plans - Additional Information (Details) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2024 USD ($) installment $ / shares shares	Dec. 31, 2023 USD ($) $ / shares shares	Dec. 31, 2022 USD ($) $ / shares shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares available for grant (in shares) \| shares	2,224,042
Compensation cost for share-based payment arrangements	$ 26,948	$ 24,738	$ 28,302
Related tax benefit recognized in net income	6,852	6,162	7,231
Additional net excess tax benefit realized	$ 257	$ 978	$ 1,367
2024 PCSU
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Capital shares reserved for future issuance (in shares) \| shares	2,900,000
Restricted Stock Units (RSUs)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Granted, weighted-average grant date fair value (usd per share) \| $ / shares	$ 52.41
Vested units in period (in shares) \| shares	0
Performance Contingent Restricted Stock Units (PCSUs)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Minimum vesting period	3 years
Granted, weighted-average grant date fair value (usd per share) \| $ / shares	$ 50.54	$ 55.04	$ 51.94
Noncash stock-based compensation associated performance contingent restricted stock units	$ 10,176	$ 9,826	$ 16,686
Total unrecognized compensation cost related to nonvested awards	$ 7,873
Weighted-average period	21 months
Performance period	3 years
Stock return payout percentage	0.20
Vested units in period (in shares) \| shares	0
Performance Contingent Restricted Stock Units (PCSUs) \| 2024 PCSU
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Performance period	3 years
Stock return payout percentage	0.20
Total performance contingent restricted stock units vested , minimum (in shares) \| shares	0
Total performance contingent restricted stock units, maximum (in shares) \| shares	517,066
Performance Contingent Restricted Stock Units (PCSUs) \| 2023 PCSU
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Performance period		3 years
Stock return payout percentage		0.20
Total performance contingent restricted stock units vested , minimum (in shares) \| shares		0
Total performance contingent restricted stock units, maximum (in shares) \| shares		410,100
Performance Contingent Restricted Stock Units (PCSUs) \| 2022 PCSU
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Fair value of vested units	$ 16,164
Total performance contingent restricted stock units, maximum (in shares) \| shares	330,888
Performance Contingent Restricted Stock Units (PCSUs) \| 2021 PCSU
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Fair value of vested units		$ 12,600
Vested units in period (in shares) \| shares		225,530
Performance Contingent Restricted Stock Units (PCSUs) \| 2020 PCSU
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Fair value of vested units			$ 17,052
Vested units in period (in shares) \| shares			280,881
Performance Contingent Restricted Stock Units (PCSUs) \| Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting percentage	25.00%
Performance Contingent Restricted Stock Units (PCSUs) \| Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting percentage	75.00%
Deferred Compensation Plans
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Compensation deferrals in current year	$ 2,024	$ 2,024	$ 2,256
Stock Appreciation Rights (SARs)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Compensation cost for share-based payment arrangements		0	40
Total unrecognized compensation cost related to nonvested awards	$ 0
Vesting percentage	33.33%
Weighted average remaining contractual life for SAR's, outstanding	4 years 2 months 12 days
Aggregate intrinsic value of options and SARs exercised	$ 74	$ 158	$ 582
Aggregate intrinsic value for SAR's, outstanding	$ 376
Fair market value of the Company’s stock used to calculate intrinsic value (usd per share) \| $ / shares	$ 48.85
Executive Officers and Key Management Employees \| Restricted Stock Units (RSUs)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Minimum vesting period	3 years
Executive Officers and Key Management Employees \| Restricted Stock Units (RSUs) \| Share-based Compensation Award, Tranche One
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting percentage	33.33%
Executive Officers and Key Management Employees \| Restricted Stock Units (RSUs) \| Share-based Compensation Award, Tranche Two
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting percentage	33.33%
Executive Officers and Key Management Employees \| Restricted Stock Units (RSUs) \| Share-based Compensation Award, Tranche Three
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting percentage	33.33%
Executives and Directors \| Restricted Stock Units (RSUs)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Minimum vesting period	5 years
Granted, weighted-average grant date fair value (usd per share) \| $ / shares	$ 52.41	$ 56.87	$ 53.55
Fair value of vested units	$ 13,190	$ 10,320	$ 6,243
Noncash stock-based compensation associated performance contingent restricted stock units	14,748	$ 12,888	$ 9,320
Total unrecognized compensation cost related to nonvested awards	$ 11,657
Weighted-average period	24 months
Executives and Directors \| Restricted Stock Units (RSUs) \| Share-based Compensation Award, Tranche Three
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting percentage	33.33%
Executives and Directors \| Restricted Stock Units (RSUs) \| Share-based Compensation Award, Tranche Four
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting percentage	33.33%
Executives and Directors \| Restricted Stock Units (RSUs) \| Share-based Compensation Award, Tranche Five
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting percentage	33.33%
Non-employee directors \| Deferred Compensation Plans \| Share-based Compensation Award, Tranche One
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of annual distribution installments \| installment	1
Non-employee directors \| Deferred Compensation Plans \| Share-based Compensation Award, Tranche Two
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of annual distribution installments \| installment	3
Non-employee directors \| Deferred Compensation Plans \| Share-based Compensation Award, Tranche Three
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of annual distribution installments \| installment	5