Consolidated Statements of Cash Flows - USD ($) $ in Thousands		6 Months Ended
		Jun. 30, 2018	Jun. 30, 2017
Cash flows from operating activities:
Net income		$ 30,847	$ 31,795
Adjustments to reconcile net income to net cash provided by operating activities:
Change in fair value of derivatives		12	1
Gain on sale of property		(509)	0
Depreciation and amortization of deferred leasing costs		22,700	23,033
Amortization of deferred debt costs		847	692
Compensation costs of stock grants and options		1,097	1,013
Provision for credit losses		429	550
Decrease in accounts receivable and accrued income		2,994	1,889
Additions to deferred leasing costs		(2,790)	(2,821)
Decrease in prepaid expenses		3,579	3,333
Increase in other assets		(4,536)	(3,662)
Increase in accounts payable, accrued expenses and other liabilities		2,511	3,570
Decrease in deferred income		(3,490)	(1,693)
Net cash provided by operating activities		53,691	57,700
Cash flows from investing activities:
Acquisitions of real estate investments (1)	[1]	(162)	(79,499)
Additions to real estate investments		(2,911)	(7,280)
Additions to development and redevelopment projects		(35,246)	(7,731)
Repayment of note receivable		1,326	0
Net cash used in investing activities		(36,993)	(94,510)
Cash flows from financing activities:
Proceeds from notes payable		0	40,000
Repayments on notes payable		(29,001)	(13,391)
Proceeds from term loan facility		75,000	0
Proceeds from revolving credit facility		50,000	47,000
Repayments on revolving credit facility		(86,000)	(12,000)
Proceeds from construction loan		0	1,358
Additions to deferred debt costs		(3,212)	(285)
Proceeds from the issuance of:
Common stock		8,048	9,313
Partnership units (1)	[1]	4,046	4,866
Preferred stock redemption costs		(13)	0
Distributions to:
Common stockholders		(23,058)	(22,191)
Noncontrolling interests		(7,864)	(7,599)
Net cash provided by (used in) financing activities		(21,181)	40,883
Net increase (decrease) in cash and cash equivalents		(4,483)	4,073
Cash and cash equivalents, beginning of period		10,908	8,322
Cash and cash equivalents, end of period		6,425	12,395
Supplemental disclosure of cash flow information:
Cash paid for interest		22,145	22,917
Increase in accrued real estate investments and development costs		3,987	975
Series D Cumulative Redeemable Preferred Stock
Proceeds from the issuance of:
Series D preferred stock		72,369	0
Distributions to:
Preferred stockholders		(868)	0
Series C Cumulative Preferred Stock
Proceeds from the issuance of:
Series C preferred stock redemption payment		(75,000)	0
Distributions to:
Preferred stockholders		$ (5,628)	$ (6,188)

[1] The 2018 acquisition of real estate and proceeds from the issuance of partnership units each excludes $8,776 in connection with the acquisition of Ashbrook Marketplace in exchange for limited partnership units.