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Share Based Compensation (Details Textual) - USD ($) | 12 Months Ended |
--- | --- | ---
Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2019 | Jan. 25, 2019
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Stock Repurchased During Period, Shares | 167,452 | 24,520 | 472,609 |  |
Number of shares authorized for awards | 4,900,000 |  |  |  |
Number of shares available for future issuance | 1,700,000 |  |  |  |
Share-based compensation expense | $ 23,000,000.0 | $ 18,300,000 | $ 12,700,000 |  |
Tax benefit from share-based compensation expense | $ 5,800,000 | $ 4,600,000 | 3,200,000 |  |
Award vesting period | 3 years |  |  |  |
Units outstanding | 948,100 | 997,000 |  |  |
Proceeds from Stock Options Exercised | $ 32,100,000 | $ 22,300,000 | 30,900,000 |  |
Portion of an award vesting for the 2012 SAR grant |  |  |  | 1/3 vesting after each year |
Award vesting percentage |  |  |  | 33.33% |
Payments for Repurchase of Common Stock | $ 21,900,000 | $ 2,600,000 | $ 47,200,000 |  |
Share Repurchase Program, Authorized, Amount |  |  |  |  | $ 300,000,000
Stock Options SARs Granted Since 2004 [Member] |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Maximum granting period for stock option | 7 years |  |  |  |
Stock Option SAR Awards [Member] |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Compensation cost not yet recognized | $ 8,800,000 |  |  |  |
Compensation cost not yet recognized, period for recognition | 1 year 8 months 12 days |  |  |  |
Restricted Stock and Performance Share Awards [Member] |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Award vesting period | 3 years |  |  |  |
Compensation cost not yet recognized | $ 10,900,000 |  |  |  |
Compensation cost not yet recognized, period for recognition | 1 year 8 months 12 days |  |  |  |
Fair value of restricted stock units and performance shares vested during period | $ 11,900,000 | $ 9,700,000 | $ 7,700,000 |  |
Phantom Stock Units [Member] | Non-employee directors |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Units granted during period | 14,213 |  |  |  |
Number of shares outstanding | 250,464 |  |  |  |
Restricted Stock [Member] |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Fair value of restricted stock units and performance shares vested during period | $ 91.52 |  |  |  |
Units granted during period | 32 |  |  |  |
Number of shares outstanding | 102 | 100 |  |  |
Performance Shares [Member] |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Fair value of restricted stock units and performance shares vested during period | $ 101.03 |  |  |  |
Units granted during period | 39 |  |  |  |
Number of shares outstanding | 89 | 97 |  |  |
Share-Based Payment Arrangement, Cash Used to Settle Award | $ 4,700,000 | $ 4.1 | $ 5.5 |  |
Share-Based Payment Arrangement, Cash Used to Settle Award | $ 4,700,000 | $ 4.1 | $ 5.5 |  |
Series A and Series B preferred Stock [Member] |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Preferred Stock, Shares Authorized | 5,000,000 |  |  |  |
Preferred Stock, Par or Stated Value Per Share | $ 1.00 |  |  |  |

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- Definition Amount authorized for purchase of share under share repurchase plan. Includes, but is not limited to, repurchase of stock and unit of ownership. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 505 -SubTopic 30 -Name Accounting Standards Codification -Section 50 -Paragraph 4 -Publisher FASB -URI https://asc.fasb.org/1943274/2147481520/505-30-50-4 + Details
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- Definition Amount of expense for award under share-based payment arrangement. Excludes amount capitalized. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SAB Topic 14.F) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479830/718-10-S99-1 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (h)(1)(i) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 + Details
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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 -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 + Details
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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. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 + Details
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