Consolidated Statements of Cash Flows - USD ($)	9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017
Cash flows from operating activities:
Net income (loss)	$ 11,698,000	$ (11,012,000)
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization expense	73,127,000	77,418,000
Amortization of above and below market leases	(405,000)	(941,000)
Hedge ineffectiveness		(218,000)
Loss on sale of properties and properties held for sale, less applicable income tax		18,460,000
Equity in (income) loss of non-consolidated REITs	(6,793,000)	719,000
Increase (decrease) in allowance for doubtful accounts	(25,000)	25,000
Changes in operating assets and liabilities:
Tenant rent receivables	(58,000)	(902,000)
Straight-line rents	821,000	(2,021,000)
Lease acquisition costs	(683,000)	(876,000)
Prepaid expenses and other assets	(487,000)	(1,945,000)
Accounts payable and accrued expenses	(2,665,000)	(489,000)
Accrued compensation	(797,000)	(784,000)
Tenant security deposits	236,000	76,000
Payment of deferred leasing commissions	(11,051,000)	(8,178,000)
Net cash provided by operating activities	62,918,000	69,332,000
Cash flows from investing activities:
Property improvements, fixtures and equipment	(35,901,000)	(41,862,000)
Investment in non-consolidated REITs	74,931,000
Distributions in excess of earnings from non-consolidated REITs	710,000	1,041,000
Repayment of related party mortgage receivable	795,000	9,795,000
Proceeds received on sales of real estate assets		6,160,000
Net cash provided by (used in) investing activities	40,535,000	(24,866,000)
Cash flows from financing activities:
Distributions to stockholders	(39,676,000)	(61,122,000)
Borrowings under bank note payable	30,000,000	60,000,000
Repayments of bank note payable	(91,000,000)	(40,000,000)
Deferred financing costs	(2,162,000)
Net cash used in financing activities	(102,838,000)	(41,122,000)
Net increase in cash, cash equivalents and restricted cash	615,000	3,344,000
Cash, cash equivalents and restricted cash, beginning of year	9,819,000	9,366,000
Cash, cash equivalents and restricted cash, end of period	10,434,000	12,710,000
Cash paid for:
Interest	25,388,000	21,885,000
Taxes	485,000	583,000
Non-cash investing and financing activities:
Accrued costs for purchases of real estate assets	$ 9,465,000	$ 6,053,000