SIGNIFICANT ACCOUNTING POLICIES (Details) - USD ($)	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015	Dec. 31, 2015
Basis of accounting and principles of combination and consolidation
Maximum cash amount insured at several financial institutions	$ 250,000		$ 250,000
Additional deferred financing cost amortization	2,688,000	$ 1,593,000
Income tax expense (benefit)	(873,000)	3,104,000
Additional return on equity from Company's investments	0	$ 281,000
Out-of-Period Adjustment
Basis of accounting and principles of combination and consolidation
Additional deferred financing cost amortization	500,000
Out-of-Period Adjustment | Noncontrolling Interests Consolidated Joint Ventures
Basis of accounting and principles of combination and consolidation
Additional return on equity from Company's investments	900,000
Out-of-Period Adjustment | Tax Year 2015 | State and Local Jurisdiction
Basis of accounting and principles of combination and consolidation
Income tax expense (benefit)	1,200,000
Other Assets
Basis of accounting and principles of combination and consolidation
Tenant security deposits	$ 20,000,000		$ 19,000,000