COMMON STOCK (Details) $ / shares in Units, $ in Millions	12 Months Ended
	Dec. 31, 2018 USD ($) Shareholder $ / shares	Dec. 31, 2017 USD ($) $ / shares
Common Stock, Number of Shares, Par Value and Other Disclosures [Abstract]
Number of days from trigger date to purchase Class B common shares	90 days
Percentage of common stock held by shareholder one	23.60%
Common stock dividends declared | $	$ 3.3	$ 3.3
Minimum [Member]
Common Stock, Number of Shares, Par Value and Other Disclosures [Abstract]
Percentage of outstanding common stock held by shareholders	10.00%
Threshold to be met to trigger the Class B protection clause	10.00%
Maximum [Member]
Common Stock, Number of Shares, Par Value and Other Disclosures [Abstract]
Percentage shareholding of class B considered as per class B Protection clause	10.00%
Class A [Member]
Common Stock, Number of Shares, Par Value and Other Disclosures [Abstract]
Number of shareholders with ownership in excess of ten percent | Shareholder	1
Common stock dividends declared each quarter (in dollars per share)	$ 0.06	$ 0.06
Class B [Member]
Common Stock, Number of Shares, Par Value and Other Disclosures [Abstract]
Common stock dividends declared each quarter (in dollars per share)	$ 0.07	$ 0.07