NOTES AND BOND PAYABLE (Narrative) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017	Dec. 31, 2017
Debt Instrument [Line Items]
Interest expense	$ 8,404	$ 9,618	$ 22,814	$ 29,327
Amortization of deferred financing costs	1,000	1,000	2,675	3,578
Interest capitalized			1,916	1,732
Interest payable	2,600		2,600		$ 5,100
Undeveloped Land
Debt Instrument [Line Items]
Interest capitalized	$ 600	$ 600	$ 1,900	$ 1,700