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Capital Stock Transactions (Tables) | 12 Months Ended
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Dec. 31, 2019
Capital Stock Transactions [Abstract] |
Schedule Of Repurchased Capital Stock |
|  | For the Years Ended December 31,
|  | 2019 |  |  | 2018 |  |  | 2017
Total cost of repurchased shares (in thousands): | $ | 92,631 |  | $ | 158,884 |  | $ | 94,640
Shares repurchased |  | 269,009 |  |  | 561,146 |  |  | 500,000
Weighted average price per share | $ | 344.34 |  | $ | 283.14 |  | $ | 189.28

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