DEBT AND FINANCING COSTS - Schedule of Financing Costs, Net (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Debt Disclosure [Abstract]
Interest income	$ 2,161	$ 0
Interest expense	709	2,490
Amortization of deferred facility fees	193	0
Capitalized interest	(394)	(2,490)
Financing costs, net of capitalized interest	$ 508	$ 0