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Stock Compensation Plans and Other Employee Benefit Plans (Tables) | 12 Months Ended
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Dec. 31, 2025
Share-Based Payment Arrangement, Noncash Expense [Abstract] |
Schedule of Stock Option Activity | A summary of the Plans’ stock option activity for the years ended December 31, 2025, 2024 and 2023 is as follows:
Stock Options |  | Common Shares |  | Weighted Average Strike Price |  | Remaining Contractual Term(1) |  | Intrinsic Value(2) ($000)
Outstanding at January 1, 2023 |  | 68,093 |  |  | $ | 41.14 |  |  |  |  |
Exercised |  | (54,993) |  |  | 40.75 |  |  |  |  |
Outstanding at December 31, 2023 |  | 13,100 |  |  | $ | 42.76 |  |  | 4.2 |  | $ | 655 |
Exercisable at December 31, 2023 |  | 13,100 |  |  | $ | 42.76 |  |  | 4.2 |  | $ | 655 |
Outstanding at January 1, 2024 |  | 13,100 |  |  | $ | 42.76 |  |  |  |  |
Exercised |  | (2,275) |  |  | 38.00 |  |  |  |  |
Outstanding at December 31, 2024 |  | 10,825 |  |  | $ | 43.76 |  |  | 3.5 |  | $ | 876 |
Exercisable at December 31, 2024 |  | 10,825 |  |  | $ | 43.76 |  |  | 3.5 |  | $ | 876 |
Outstanding at January 1, 2025 |  | 10,825 |  |  | $ | 43.76 |  |  |  |  |
Exercised |  | (5,150) |  |  | 42.61 |  |  |  |  |
Outstanding at December 31, 2025 |  | 5,675 |  |  | $ | 44.81 |  |  | 2.7 |  | $ | 539 |
Exercisable at December 31, 2025 |  | 5,675 |  |  | $ | 44.81 |  |  | 2.7 |  | $ | 539 |
Vested or expected to vest at December 31, 2025 |  | 5,675 |  |  | $ | 44.81 |  |  | 2.7 |  | $ | 539 |
(1)Represents the weighted average contractual remaining life in years. (2)Aggregate intrinsic value represents the total pretax intrinsic value (i.e., the difference between the Company’s stock price at year end and the option exercise price, multiplied by the number of shares) that would have been received by the option holders if they had exercised their options on the last day of the year. Options with exercise prices above the year end stock price are excluded from the calculation of intrinsic value. The intrinsic value will change based on the fair market value of the Company’s stock.
Schedule of Plans' Restricted and Performance Share Award Activity | A summary of the Plans’ restricted share activity for the years ended December 31, 2025, 2024 and 2023 is as follows:
|  | 2025 |  | 2024 |  | 2023
Restricted Shares |  | Common Shares |  | Weighted Average Grant-Date Fair Value |  | Common Shares |  | Weighted Average Grant-Date Fair Value |  | Common Shares |  | Weighted Average Grant-Date Fair Value
Outstanding at January 1 |  | 880,866 |  |  | $ | 90.95 |  |  | 746,123 |  |  | $ | 79.60 |  |  | 610,155 |  |  | $ | 73.21 |
Granted |  | 262,521 |  |  | 132.46 |  |  | 407,046 |  |  | 99.89 |  |  | 270,855 |  |  | 88.06 |
Vested and issued |  | (224,769) |  |  | 94.65 |  |  | (241,415) |  |  | 70.41 |  |  | (121,534) |  |  | 65.90 |
Forfeited or canceled |  | (30,220) |  |  | 110.10 |  |  | (30,888) |  |  | 95.26 |  |  | (13,353) |  |  | 83.68 |
Outstanding at end of year |  | 888,398 |  |  | $ | 101.63 |  |  | 880,866 |  |  | $ | 90.95 |  |  | 746,123 |  |  | $ | 79.60 |
Vested, but deferred, at year end |  | 102,218 |  |  | $ | 55.59 |  |  | 100,610 |  |  | $ | 54.46 |  |  | 98,919 |  |  | $ | 53.58 |
A summary of the Plans’ performance-based stock award activity, based on the target level of the awards, for the years ended December 31, 2025, 2024 and 2023 is as follows:
|  | 2025 |  | 2024 |  | 2023
Performance Shares |  | Common Shares |  | Weighted Average Grant-Date Fair Value |  | Common Shares |  | Weighted Average Grant-Date Fair Value |  | Common Shares |  | Weighted Average Grant-Date Fair Value
Outstanding at January 1 |  | 454,017 |  |  | $ | 93.57 |  |  | 553,026 |  |  | $ | 79.69 |  |  | 545,379 |  |  | $ | 70.30 |
Granted |  | 88,310 |  |  | 134.57 |  |  | 111,469 |  |  | 100.47 |  |  | 189,355 |  |  | 92.36 |
Added by performance factor at vesting |  | 75,461 |  |  | 96.51 |  |  | 96,952 |  |  | 58.78 |  |  | 23,925 |  |  | 62.82 |
Vested and issued |  | (230,957) |  |  | 95.26 |  |  | (295,644) |  |  | 58.69 |  |  | (186,344) |  |  | 62.67 |
Forfeited or canceled |  | (9,074) |  |  | 105.85 |  |  | (11,786) |  |  | 95.97 |  |  | (19,289) |  |  | 81.84 |
Outstanding at end of year |  | 377,757 |  |  | $ | 102.38 |  |  | 454,017 |  |  | $ | 93.57 |  |  | 553,026 |  |  | $ | 79.69 |
Vested, but deferred, at year end |  | 13,335 |  |  | $ | 41.21 |  |  | 21,759 |  |  | $ | 44.51 |  |  | 29,020 |  |  | $ | 45.88 |

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- Definition Tabular disclosure of the number and weighted-average grant date fair value for restricted stock units that were outstanding at the beginning and end of the year, and the number of restricted stock units that were granted, vested, or forfeited during the year. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c)(1) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 + Details
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- Definition Tabular disclosure for stock option plans. Includes, but is not limited to, outstanding awards at beginning and end of year, grants, exercises, forfeitures, and weighted-average grant date fair value. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c)(1) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (d) -SubTopic 10 -Topic 718 -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (e) -SubTopic 10 -Topic 718 -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 + Details
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