INCOME TAXES, Reconciliation of Tax Provision (Benefit) (Details) - USD ($) $ in Thousands	1 Months Ended	3 Months Ended								11 Months Ended	12 Months Ended
	Jan. 31, 2017	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2017	Dec. 31, 2019	Dec. 31, 2018
Income Tax Disclosure [Abstract]
Income (loss) before income taxes	$ (5,521)	$ 7,728	$ 6,291	$ 9,676	$ 4,237	$ (1,453)	$ (5,844)	$ 2,668	$ (747)	$ (9,640)	$ 27,932	$ (5,376)
US statutory tax rate	34.00%									34.00%	21.00%	21.00%
Income tax (benefit) expense at statutory rate	$ (1,877)									$ (3,277)	$ 5,866	$ (1,129)
State tax expense (benefit), net of federal	(279)									(182)	1,639	145
Foreign tax rates different from U.S. statutory rate	(46)									95	260	146
Non-deductible expenses	1									3,309	374	1,978
Write-off of transaction costs	0									0	0	321
Write-off of net operating losses	0									0	0	314
Change in tax rate	0									604	71	76
Other	(2)									(15)	113	17
Total tax provision (benefit)	$ (2,203)	$ 2,387	$ 2,253	$ 2,602	$ 1,081	$ (6,318)	$ 7,569	$ 824	$ (207)	$ 534	$ 8,323	$ 1,868