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EQUITY (Details) $ / shares in Units, $ in Thousands | 3 Months Ended | 12 Months Ended | 132 Months Ended
--- | --- | --- | ---
Jun. 30, 2021 USD ($) $ / shares shares | Mar. 31, 2021 USD ($) $ / shares shares | Dec. 31, 2020 USD ($) $ / shares shares | Sep. 30, 2020 USD ($) $ / shares shares | Jun. 30, 2020 USD ($) $ / shares shares | Mar. 31, 2020 USD ($) $ / shares shares | Dec. 31, 2019 USD ($) $ / shares shares | Sep. 30, 2019 USD ($) $ / shares shares | Jun. 30, 2019 USD ($) $ / shares shares | Mar. 31, 2019 USD ($) $ / shares shares | Dec. 31, 2021 USD ($) Vote $ / shares shares | Dec. 31, 2020 USD ($) $ / shares shares | Dec. 31, 2019 USD ($) $ / shares shares | Dec. 31, 2021 USD ($) Vote $ / shares shares
Common Stock |  |  |  |  |  |  |  |  |  |  |  |  |  |
Common stock, shares authorized (in shares) |  |  | 325,000,000 |  |  |  |  |  |  |  | 325,000,000 | 325,000,000 |  | 325,000,000
Common stock, par value (in dollars per share) | $ / shares |  |  | $ 0.01 |  |  |  |  |  |  |  | $ 0.01 | $ 0.01 |  | $ 0.01
Common stock, shares issued (in shares) |  |  | 125,998,967 |  |  |  |  |  |  |  | 108,159,319 | 125,998,967 |  | 108,159,319
Common stock, shares outstanding (in shares) |  |  | 107,299,933 |  |  |  |  |  |  |  | 106,646,498 | 107,299,933 |  | 106,646,498
Common stock, votes per share | Vote |  |  |  |  |  |  |  |  |  |  | 1 |  |  | 1
Common Stock in Treasury, at Cost |  |  |  |  |  |  |  |  |  |  |  |  |  |
Common stock held in Treasury (in shares) |  |  | 18,699,034 |  |  |  |  |  |  |  | 1,512,821 | 18,699,034 |  | 1,512,821
Share Repurchase Program |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of shares of common stock repurchased | 331,373 | 490,632 | 1,013,709 | 465,366 | 992,159 | 1,062,881 | 600,442 | 453,319 | 100 | 366,793 | 822,005 | 3,534,115 | 1,420,654 | 18,072,129
Average price paid per share | $ / shares | $ 101.57 | $ 96.97 | $ 86.79 | $ 89.92 | $ 100.54 | $ 112.46 | $ 115.76 | $ 115.49 | $ 104.75 | $ 95.36 | $ 98.82 |  |  | $ 68.12
Total purchase price | $ | $ 33,700 | $ 47,600 | $ 88,000 | $ 41,800 | $ 99,800 | $ 119,500 | $ 69,500 | $ 52,400 | $ 10 | $ 35,000 | $ 81,300 | $ 349,100 | $ 156,900 | $ 1,200,000
Availability remaining under existing share repurchase authorizations | $ |  |  |  |  |  |  |  |  |  |  | $ 318,900 |  |  | $ 318,900
Purchase of Common Stock from Employees |  |  |  |  |  |  |  |  |  |  |  |  |  |
Stock repurchased from employee stock plans (in shares) |  |  |  |  |  |  |  |  |  |  | 63,911 | 120,552 |  |
Average price paid per share (in dollars per share) | $ / shares |  |  |  |  |  |  |  |  |  |  | $ 97.19 | $ 117.98 |  |
Preferred stock |  |  |  |  |  |  |  |  |  |  |  |  |  |
Preferred stock, shares authorized (in shares) |  |  | 20,000,000 |  |  |  |  |  |  |  | 20,000,000 | 20,000,000 |  | 20,000,000
Preferred stock, par value (in dollars per share) | $ / shares |  |  | $ 0.01 |  |  |  |  |  |  |  | $ 0.01 | $ 0.01 |  | $ 0.01
Preferred stock, shares issued (in shares) |  |  | 0 |  |  |  |  |  |  |  | 0 | 0 |  | 0
Preferred stock, shares outstanding (in shares) |  |  | 0 |  |  |  |  |  |  |  | 0 | 0 |  | 0
Dividends |  |  |  |  |  |  |  |  |  |  |  |  |  |
Cash dividends declared (in dollars per share) | $ / shares |  |  |  |  |  |  |  |  |  |  | $ 1.80 | $ 1.56 | $ 1.34 |
Cash dividends paid (in dollars per share) | $ / shares |  |  |  |  |  |  |  |  |  |  | $ 1.80 | $ 1.56 |  |
Aggregate payout | $ |  |  |  |  |  |  |  |  |  |  | $ 193,300 | $ 170,600 | $ 150,000 |

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