NON-CONTROLLING INTEREST AND INCOME (LOSS) PER SHARE (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Net income (loss) attributable to common stockholders
Net income	$ 3,102	$ (7,656)	$ 274	$ (19,710)
Non-controlling interest	(2,306)		(2,420)
Net income (loss) attributable to common shareholders	796		(2,146)
Basic income (loss) per share:
Net income (loss) attributable to common shareholders	$ 796		$ (2,146)
Basic income (loss) per share	$ 0.02		$ (0.05)
Diluted income (loss) per share:
Net income (loss) attributable to common shareholders	$ 796		$ (2,146)
Total	46,721,559		46,455,238
Diluted income (loss) per share	$ 0.02		$ (0.05)
Class A common stock
Basic income (loss) per share:
Weighted average shares of Class A common stock outstanding	46,696,200		46,455,238
Basic income (loss) per share	$ 0.02		$ (0.05)
Diluted income (loss) per share:
Weighted average shares of Class A common stock outstanding	46,721,559		46,455,238
Stock options excluded from diluted income (loss) per share	25,359,000		16,607
Diluted income (loss) per share	$ 0.02		$ (0.05)
Market based stock options
Diluted income (loss) per share:
Stock options excluded from diluted income (loss) per share	155,000		155,000
Threshold period			90 days
Vesting period			5 years
Threshold volume weighted average per share price trigger			$ 100
Focus LLC
LOSS PER SHARE
Focus LLC common units held by continuing owners	22,308,446,000		22,308,446,000
Common unit equivalents of outstanding vested and unvested incentive units held by continuing owners	5,125,588,000		5,125,588,000
Total common units and common unit equivalents attributable to non-controlling interest	27,434,034,000		27,434,034,000
Total common units and common unit equivalents of incentive units outstanding	74,550,851,000		74,550,851,000
Ownership interest (as a percentage)	36.80%		36.80%
Non-controlling interest allocation	63.20%		63.20%
Convertible incentive units	17,830,564		17,830,564