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STOCKHOLDERS' EQUITY (Details) $ / shares in Units, $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2016 Vote $ / shares | Dec. 31, 2014 $ / shares | Dec. 31, 2016 USD ($) Vote $ / shares | Dec. 31, 2015 USD ($) $ / shares | Dec. 31, 2014 USD ($) $ / shares
Common Stock [Member] |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |
Common stock dividend paid in cash (in dollars per share) | $ / shares | $ 1.00 |  |  |  |
Aggregate dividends paid on common Stock | $ |  |  | $ 26,674 | $ 7,358 | $ 27,077
Class A Common Stock [Member] |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |
Preferential dividend rate of common stock of dividends paid | 105.00% |  | 105.00% |  |
Percentage of number of directors elected under stock voting right |  |  | 75.00% |  |
Number of votes per share | Vote | 10 |  | 10 |  |
Conversion basis |  |  | 1-for-1 basis |  |
Common stock dividend paid in cash (in dollars per share) | $ / shares |  | $ 0.95 | $ 1.365 | $ 0.34 | $ 1.25
Aggregate dividends paid on common Stock | $ |  |  | $ 2,735 | $ 702 | $ 2,703

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