OTHER ASSETS - Components of Other Assets (Details) - USD ($)	6 Months Ended	12 Months Ended
	Jun. 30, 2017	Dec. 31, 2016
Other Assets
Income Property Tenant Receivables	$ 552,544	$ 125,383
Income Property Straight-line Rent Adjustment	2,099,116	1,773,946
Interest Receivable from Commercial Loan Investments	71,930	72,418
Cash Flow Hedge	400,341	416,590
Infrastructure Reimbursement Receivables	2,373,771	3,844,236
Golf Operations Receivables	471,858	325,510
Deferred Deal Costs	239,455	745,878
Prepaid Expenses, Deposits, and Other	2,115,405	2,165,127
Total Other Assets	8,324,420	9,469,088
Community Development District
Other Assets
Infrastructure Reimbursement Receivables		1,100,000
Infrastructure reimbursements received	1,100,000
NADG
Other Assets
Infrastructure Reimbursement Receivables		250,000,000
Infrastructure reimbursements received	250,000,000
Tanger
Other Assets
Infrastructure Reimbursement Receivables		$ 1,750,000,000
Reimbursement repayment term		10 years
Infrastructure reimbursement receivables, installment payment amounts		$ 175,000,000
Infrastructure reimbursement receivable, discount		191,000,000
Sam's Club
Other Assets
Infrastructure Reimbursement Receivables		$ 990,000,000
Reimbursement repayment term		9 years
Infrastructure reimbursement receivables, installment payment amounts		$ 110,000,000
Infrastructure reimbursement receivable, discount		$ 80,000,000
Infrastructure reimbursements received	$ 110,000,000