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STOCKHOLDERS' EQUITY (Treasury Stock) (Details) - USD ($) $ in Thousands | 12 Months Ended |
--- | --- | ---
Dec. 31, 2016 | Dec. 31, 2015 | Oct. 31, 2015
Treasury Stock |  |  |
Aggregate cost of shares repurchased during the period | $ 9,510 | $ 12,765 |
Treasury stock (in shares) | 2,565,399 | 2,080,187 |
Stock Repurchase Program |  |  |
Treasury Stock |  |  |
Amount of stock repurchases authorized |  |  | $ 50,000
Number of shares repurchased during the period | 485,212 |  |
Aggregate cost of shares repurchased during the period | $ 9,500 |  |
Amount available for repurchase | $ 37,700 |  |

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