NET INCOME (LOSS) PER SHARE (Details) - USD ($) $ / shares in Units, $ in Thousands			3 Months Ended
		Nov. 09, 2018	Mar. 31, 2019	Mar. 31, 2018
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Net income (loss) attributable to Class A Common shareholders			$ 1,100	$ (12,607)
Effect of dilutive Class C Common Stock:
Net income (loss) attributable to noncontrolling interest assumed to be redeemed for Class A Common Stock, net of tax			3,525	0
Net income (loss) attributable to Class A Common shareholders after assumed redemption			$ 4,625	$ (12,607)
Weighted average Class A Common Stock outstanding (basic)			74,929,000	139,941,000
Effect of dilutive Class C Common Stock:
Class A Common Stock assumed issued to holder of noncontrolling interest upon redemption			250,000,000	0
Weighted average number of shares outstanding, diluted (in shares)	[1]		324,929,000	139,941,000
Basic (in USD per share)			$ 0.01	$ (0.09)
Diluted (in USD per share)			$ 0.01	$ (0.09)
Warrant
Effect of dilutive Class C Common Stock:
Antidilutive securities excluded from computation of earnings per share (in shares)			18,941,631
Class A Common Stock
Effect of dilutive Class C Common Stock:
Earn-out consideration of equity interest (in shares)		37,500,000

[1] For periods prior to the Business Combination (as defined below), the number of shares has been retroactively restated to reflect the number of shares received by Apache. For further detail of the Business Combination and associated financial statement presentation, please refer to Note 1 — Summary of Significant Accounting Policies and Note 2 — Recapitalization Transaction.