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Capital Stock Transactions | 12 Months Ended
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Dec. 31, 2021
Capital Stock Transactions [Abstract] |
Capital Stock Transactions | 18. Capital Stock Transactions We repurchased the following capital stock: For the Years Ended December 31, 2021 2020 2019Total cost of repurchased shares (in thousands):$ 576,483 $ 175,594 $ 92,631Shares repurchased 1,195,529 384,252 269,009Weighted average price per share$ 482.20 $ 456.98 $ 344.34 In May and November 2021, the Board of Directors authorized a total of $600.0 million for additional stock repurchase under the February 2011 repurchase program. We currently have $201.9 million of authorization remaining under this share purchase plan.

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