DERIVATIVE AND HEDGING ACTIVITIES - Netting Arrangements (Details) - USD ($) $ in Thousands		1 Months Ended	3 Months Ended	9 Months Ended		12 Months Ended
	Oct. 01, 2019	Aug. 31, 2019	Dec. 31, 2019	Oct. 01, 2019	Sep. 30, 2019	Dec. 31, 2018	Dec. 31, 2017
Derivative Assets
Gross Amounts Presented in the Consolidated Balance Sheet			$ 5,219			$ 69,717
Amounts Not Offset in the Consolidated Balance Sheet			(4,557)			(10,263)
Net Amount			662			59,454
Derivative Liabilities
Gross Amounts Presented in the Consolidated Balance Sheet			(12,923)			(12,907)
Amounts Not Offset in the Consolidated Balance Sheet			4,557			10,263
Net Amount			$ (8,366)			$ (2,644)
Amount received to settle outstanding positions		$ 100
Derivative contract novation fees.		$ 500
Financial Designation, Predecessor and Successor [Fixed List]	Predecessor		Successor	Predecessor	Predecessor	Predecessor	Predecessor