EARNINGS (LOSS) PER SHARE ("EPS") (Narrative) (Details) - USD ($) $ in Thousands	1 Months Ended	3 Months Ended	9 Months Ended
	Sep. 30, 2017	Dec. 31, 2016	Dec. 31, 2017	Dec. 31, 2016
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive shares excluded from calculation of EPS (in shares)		4,912,000		4,912,000
Software development costs	$ 23,251
Restricted stock
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Restricted stock awards, vested (in shares)			2,877,000
Restricted stock awards, granted (in shares)			2,303,000
Restricted stock awards, canceled (in shares)			1,575,000
Expenses reversed			$ 17,214
Software development costs			$ (53,569)