DEBT AND FINANCING COSTS - Schedule of Financing Costs, Net (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Debt Disclosure [Abstract]
Interest income	$ 3,606	$ 1,608	$ 0
Interest expense	6,384	8,412	7,100
Amortization of deferred facility fees	889	107	0
Capitalized interest	(5,481)	(8,412)	(7,100)
Financing costs, net of capitalized interest	$ 1,792	$ 107	$ 0