SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Revenue Recognition and Equity Securities) (Details) $ in Thousands	Dec. 31, 2019 USD ($)	Dec. 31, 2018 USD ($)	Jan. 01, 2018 USD ($) a	Dec. 31, 2017 USD ($)
Summary of Significant Accounting Policies [Line Items]
Cumulative effect adjustments to retained earnings				$ 2,472
Contract with customer, liability	$ 3,100	$ 3,100
Park Highlands | Undeveloped Land | Disposed of by Sale
Summary of Significant Accounting Policies [Line Items]
Area of land sold | a			102
Retained Earnings
Summary of Significant Accounting Policies [Line Items]
Cumulative effect adjustments to retained earnings				$ 27,618
Accounting Standards Update 2014-09 | Retained Earnings
Summary of Significant Accounting Policies [Line Items]
Cumulative effect adjustments to retained earnings			$ 2,500
Accounting Standards Update 2016-01 | Retained Earnings
Summary of Significant Accounting Policies [Line Items]
Cumulative effect adjustments to retained earnings			$ 25,100