Note 5 - Capital Stock (Details Textual) - USD ($) $ / shares in Units, $ in Thousands |
3 Months Ended | 9 Months Ended | |||||
|---|---|---|---|---|---|---|---|
Oct. 21, 2026 |
Sep. 30, 2026 |
Jun. 30, 2026 |
Mar. 31, 2026 |
Sep. 30, 2025 |
Sep. 30, 2026 |
Sep. 30, 2025 |
|
| Treasury Stock, Shares, Acquired | 704,000 | 1,479,000 | |||||
| Treasury Stock, Value, Acquired, Cost Method | $ 173,828 | $ 230,450 | $ 351,659 | $ 783,360 | |||
| Share Repurchase Program, Remaining Authorized, Amount | $ 619,300 | $ 619,300 | |||||
| Common Stock, Dividends, Per Share, Declared | $ 0.45 | $ 0.45 | $ 0.45 | ||||
| Subsequent Event [Member] | |||||||
| Common Stock, Dividends, Per Share, Declared | $ 0.45 | ||||||
| X | ||||||||||
- Definition Aggregate dividends declared during the period for each share of common stock outstanding. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition Amount remaining authorized for purchase of share under share repurchase plan. Includes, but is not limited to, repurchase of stock and unit of ownership. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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| X | ||||||||||
- Definition Number of shares that have been repurchased during the period and are being held in treasury. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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| X | ||||||||||
- Definition Equity impact of the cost of common and preferred stock that were repurchased during the period. Recorded using the cost method. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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| X | ||||||||||
- Details
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