PERPETUAL CUMULATIVE CONVERTIBALE PREFERRED STOCK (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Preferred Units [Line Items]
Convertible Preferred Stock Shares Issued Upon Conversion	1.9
Preferred Stock to Cash Redemption Percentage	100.00%
Loss on retirement of Preferred	$ 200
Preferred Stock Carrying Value [Abstract]
Preferred Stock, Shares Issued	0	11
Acquisition Price Paid Using Convertible Preferred Stock	$ 0	$ 27,500
Payment of fees associated with the issuance of preferred stock	0	0	$ (220)
Accrued Preferred Stock Dividend	0	452
Perpetual Convertible Preferred Stock, Value, Issued	$ 0	$ 27,732
Maximum [Member]
Preferred Units [Line Items]
Preferred Stock Dividend Rate [Percentage]	12.00%
Minimum [Member]
Preferred Units [Line Items]
Preferred Stock Dividend Rate [Percentage]	6.00%