LONG-TERM DEBT - Mandatorily Redeemable Preferred Stock (Details) - USD ($) $ / shares in Units, $ in Thousands		3 Months Ended	5 Months Ended	9 Months Ended
	May 01, 2019	Sep. 30, 2019	Sep. 30, 2019	Sep. 30, 2019	Dec. 31, 2018
Debt Instrument [Line Items]
Preferred stock, shares issued		0	0	0	0
Preferred stock, par value (in dollars per share)		$ 0.001	$ 0.001	$ 0.001	$ 0.001
Preferred stock issued		$ 0	$ 0	$ 0	$ 0
Acceleration or payment default amount				100,000
Redeemable Preferred Stock
Debt Instrument [Line Items]
Preferred stock, shares issued	60,000
Preferred stock, par value (in dollars per share)	$ 0.001
Liquidation preference value	$ 60,000	60,000	60,000	$ 60,000
Preferred stock issued	$ 60,000
Interest expense paid on dividends		$ 2,000	$ 3,400
LIBOR | Redeemable Preferred Stock
Debt Instrument [Line Items]
Basis spread (as a percent)	2.00%