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STOCK REPURCHASE PROGRAM (Details) - USD ($) shares in Thousands, $ in Thousands | 3 Months Ended |
--- | --- | ---
Mar. 31, 2018 | Mar. 31, 2017 | Oct. 20, 2016
STOCK REPURCHASE PROGRAM |  |  |
Share repurchases authorized amount |  |  | $ 350,000
Common stock repurchased (in shares) | 189 |  |
Aggregate amount of share repurchases (in dollars) | $ 3,905 |  |
Common stock repurchased (retired and held in treasury) (in shares) | 189 |  |
Common stock repurchased (retired and held in treasury) | $ 16,700 |  |
Common stock repurchased and retired (in shares) | 144 | 210 |
Common stock repurchased and retired | $ 12,797 | $ 16,019 |
Remaining authorized repurchase amount | $ 125,200 |  |

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