DISCONTINUED OPERATIONS - Assets and Liabilities from Discontinued Operations Classified as Held-For-Sale (Details) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Assets:
Cash and cash equivalents		$ 41,369	$ 41,417
Real estate assets held-for-sale		440,689
Liabilities:
Debt			$ 80,900
Real estate liabilities held-for-sale		207,566
Held-for-sale
Assets:
Real estate assets held-for-sale		440,689
Liabilities:
Real estate liabilities held-for-sale		207,566
Real Estate | Held-for-sale
Assets:
Cash and cash equivalents		40,931
Real estate		373,207
Accounts receivable		5,628
Other assets		14,418
Real estate assets held-for-sale		434,184
Liabilities:
Debt		160,994
Accounts payable and accrued expenses		34,025
Other		12,271
Real estate liabilities held-for-sale		207,290
Agribusiness | Held-for-sale
Assets:
Real estate assets held-for-sale		6,505
Liabilities:
Real estate liabilities held-for-sale		$ 276