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Note 7 - Stockholders' Equity and Stock Incentive Plans - Share Repurchases (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands | 3 Months Ended
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Mar. 31, 2025 | Mar. 31, 2024
Shares repurchased (2) (in shares) | [1],[2] | 4,453 | 1,658
Total cost, including brokerage fees (3) | [2],[3] | $ 327,997 | $ 105,500
Average repurchase price per share (4) (in dollars per share) | [2],[4] | $ 73.66 | $ 63.62
[1] | All shares repurchased have been retired and constitute authorized but unissued shares.
[2] | Shares repurchased reflect repurchases settled during the three months ended March 31, 2025 and 2024. These amounts exclude repurchases, if any, traded but not yet settled on or before March 31, 2025 and 2024, respectively.
[3] | Costs exclude 1% excise tax on corporate stock buybacks.
[4] | Amounts in the table may not recalculate exactly due to rounding. Average repurchase price per share is calculated based on unrounded numbers and excludes the 1% excise tax.

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