SUMMARY OF SIGNIFICANT EVENTS AND ACCOUNTING POLICIES - Cash, Cash Equivalents and Restricted Cash (Details) - USD ($) $ in Thousands	1 Months Ended	2 Months Ended	3 Months Ended		12 Months Ended
	Oct. 31, 2019	Dec. 31, 2019	Mar. 31, 2020	Mar. 31, 2019	Dec. 31, 2019	Oct. 02, 2019	Oct. 01, 2019	Dec. 31, 2018
SUMMARY OF SIGNIFICANT EVENTS AND ACCOUNTING POLICIES
Financial Designation, Predecessor and Successor [Fixed List]	Successor	Successor	Successor	Predecessor	Successor
Cash and cash equivalents		$ 5,701	$ 938		$ 5,701	$ 15,546	$ 15,546
Restricted cash		4,574			4,574
Total cash, cash equivalents and restricted cash		$ 10,275	$ 938	$ 195	$ 10,275			$ 46,866