NET LOSS PER SHARE - Anti-Dilutive Awards Excluded from Calculation (Details) - shares		3 Months Ended		9 Months Ended
	May 01, 2018	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Anti-dilutive Securities Excluded from Calculation of Earnings Per Share
Common stock dividend declared, percentage of shares outstanding	5.00%
Weighted Average
Anti-dilutive Securities Excluded from Calculation of Earnings Per Share
Weighted average number of securities excluded from calculation		1,027,515	815,765	905,762	750,987
Stock options
Anti-dilutive Securities Excluded from Calculation of Earnings Per Share
Weighted average number of securities excluded from calculation		310,059	343,210	316,012	364,978
Restricted stock units
Anti-dilutive Securities Excluded from Calculation of Earnings Per Share
Weighted average number of securities excluded from calculation		651,482	397,830	522,333	308,293
Non-participating restricted stock awards
Anti-dilutive Securities Excluded from Calculation of Earnings Per Share
Weighted average number of securities excluded from calculation		65,974	74,725	67,417	77,716