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Equity Transactions (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands |  |  |  |  |  | 1 Months Ended | 2 Months Ended | 3 Months Ended | 12 Months Ended
--- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Aug. 13, 2021 | May 17, 2021 | May 14, 2021 | May 04, 2021 | Mar. 10, 2021 | Jan. 31, 2022 | Jul. 31, 2021 | Jan. 31, 2021 | May 04, 2021 | Aug. 13, 2021 | Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
Preferred stock |  |  |  |  |  |  |  |  |  |  |  |  |
Preferred stock, shares authorized |  |  |  |  |  |  |  |  |  |  | 10,000 | 10,000 |
Treasury stock |  |  |  |  |  |  |  |  |  |  |  |  |
Adjustment to additional paid in capital |  |  |  |  |  |  |  |  |  |  | $ 296,670 | $ 282,467 |
Common stock acquired, cost |  |  |  |  |  |  |  |  |  |  | 797,838 | $ 129,045 | $ 35,786
Accelerated Share Repurchase March 10, 2021 |  |  |  |  |  |  |  |  |  |  |  |  |
Treasury stock |  |  |  |  |  |  |  |  |  |  |  |  |
Stock price on initial delivery |  |  |  |  | $ 101.49 |  |  |  |  |  |  |  |
Number of repurchased shares delivered in initial delivery |  |  |  |  | 276 |  |  |  |  |  |  |  |
Initial share delivery as a percentage of the number of shares initially underlying the ASR agreement |  |  |  |  | 80.00% |  |  |  |  |  |  |  |
Number of additional repurchased shares delivered at final settlement |  |  |  | 46 |  |  |  |  |  |  |  |  |
Aggregate number of shares delivered |  |  |  |  |  |  |  |  | 322 |  |  |  |
Final average cost per share |  |  |  |  |  |  |  |  | $ 108.76 |  |  |  |
Adjustment to additional paid in capital |  |  |  | $ 7,000 | $ (7,000) |  |  |  | $ 7,000 |  |  |  |
Common stock acquired, cost |  |  |  | $ 7,000 | 28,000 |  |  |  |  |  |  |  |
Accelerated Share Repurchase March 10, 2021 | Maximum |  |  |  |  |  |  |  |  |  |  |  |  |
Treasury stock |  |  |  |  |  |  |  |  |  |  |  |  |
Targeted repurchase of common stock |  |  |  |  | $ 35,000 |  |  |  |  |  |  |  |
Accelerated Share Repurchase May 14, 2021 |  |  |  |  |  |  |  |  |  |  |  |  |
Treasury stock |  |  |  |  |  |  |  |  |  |  |  |  |
Stock price on initial delivery |  | $ 95.63 |  |  |  |  |  |  |  |  |  |  |
Number of repurchased shares delivered in initial delivery |  | 418 |  |  |  |  |  |  |  |  |  |  |
Initial share delivery as a percentage of the number of shares initially underlying the ASR agreement |  | 80.00% |  |  |  |  |  |  |  |  |  |  |
Number of additional repurchased shares delivered at final settlement | 139 |  |  |  |  |  |  |  |  |  |  |  |
Aggregate number of shares delivered |  |  |  |  |  |  |  |  |  | 558 |  |  |
Final average cost per share |  |  |  |  |  |  |  |  |  | $ 89.68 |  |  |
Adjustment to additional paid in capital | $ 10,000 |  | $ (10,000) |  |  |  |  |  |  | $ 10,000 |  |  |
Common stock acquired, cost | $ 10,000 |  | 40,000 |  |  |  |  |  |  |  |  |  |
Accelerated Share Repurchase May 14, 2021 | Maximum |  |  |  |  |  |  |  |  |  |  |  |  |
Treasury stock |  |  |  |  |  |  |  |  |  |  |  |  |
Targeted repurchase of common stock |  |  | $ 50,000 |  |  |  |  |  |  |  |  |  |
Stock Repurchase Program |  |  |  |  |  |  |  |  |  |  |  |  |
Treasury stock |  |  |  |  |  |  |  |  |  |  |  |  |
Increase in stock repurchase plan authorized |  |  |  |  |  | $ 175,000 | $ 970,000 | $ 100,000 |  |  |  |  |
Authorized amount for repurchase of common stock |  |  |  |  |  |  |  |  |  |  | $ 1,645,000 |  |
Expiration date on repurchase authorizations |  |  |  |  |  |  |  |  |  |  | Dec. 31, 2022 |  |
Common stock purchased for treasury, shares |  |  |  |  |  |  |  |  |  |  | 9,199 |  |
Common stock acquired, cost |  |  |  |  |  |  |  |  |  |  | $ 797,838 |  |
Remaining authorized repurchase amount |  |  |  |  |  | $ 595,433 |  |  |  |  | $ 420,433 |  |

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