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EARNINGS PER SHARE Accelerated Share Repurchase (Details) - USD ($) $ in Thousands | 3 Months Ended | 4 Months Ended | 9 Months Ended |  |
--- | --- | --- | --- | --- | ---
Sep. 30, 2020 | Sep. 30, 2019 | Jun. 30, 2019 | Mar. 31, 2019 | Mar. 07, 2019 | Sep. 30, 2020 | Sep. 30, 2019 | Dec. 31, 2019 | Dec. 31, 2018
Accelerated Share Repurchases [Line Items] |  |  |  |  |  |  |  |  |
Payments for Repurchase of Common Stock |  |  |  |  |  | $ (2,032) | $ (152,735) |  |
Stock Repurchase Program, Authorized Amount |  |  |  |  |  |  |  | $ 400,000 | $ 300,000
Treasury Stock, Shares, Acquired |  | 695,496 | 2,394,816 | 365,272 | 365,272 |  | 3,455,584 |  |
Stock Repurchase Program Expiration Date | Dec. 31, 2020 |  |  |  |  |  |  |  |

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