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Capital Stock Repurchase Plan Transactions (Tables) | 3 Months Ended
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Mar. 31, 2021
Capital Stock Repurchase Plan Transactions [Abstract] |
Schedule Of Repurchased Capital Stock |
|  | Three months ended March 31,
|  | 2021 |  | 2020
Total cost of repurchased shares (in thousands) |  | $ | 44,768 |  | $ | 100,235
Shares repurchased |  |  | 100,000 |  |  | 225,000
Weighted average price per share |  | $ | 447.67 |  | $ | 445.49

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