PRO FORMA FINANCIAL INFORMATION (Details) - March Oakland Properties - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Disposal Group
Pro forma revenue	$ 40,825	$ 39,157
Pro forma net income	20,673	1,074
Pro forma net income (loss) attributable to common stockholders per share, basic	$ 16,681	$ (2,574)
Pro forma net income (loss) attributable to common stockholders per share, basic (in usd per share)	$ 0.38	$ (0.06)
Pro forma net income (loss) attributable to common stockholders per share, diluted (in usd per share)	$ 0.38	$ (0.06)