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CAPITAL STOCK AND STOCK AWARD PLANS - Share Repurchase Programs Activity (Details) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2016
Share Repurchases [Line Items] |  |  |
Total Value of Shares Repurchased | $ 303,492 | $ 179,985 | $ 176,676
2013 and 2018 Share Repurchase Programs |  |  |
Share Repurchases [Line Items] |  |  |
Shares Repurchased (in shares) | 3,319,077 | 2,426,407 | 2,467,097
Total Value of Shares Repurchased | $ 303,492 | $ 179,985 | $ 176,676

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