Consolidated Statements of Cash Flows (Unaudited) (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Jun. 30, 2014		Jun. 30, 2013
Cash flows from operating activities:
Net income	$ 33,198		$ 11,160
Adjustments to reconcile net income to net cash provided by operating activities:
Change in fair value of derivatives	7		(61)
Gain on sale of property	(6,069)		0
Depreciation and amortization of deferred leasing costs	20,489		28,824
Amortization of deferred debt costs	614		625
Non cash compensation costs of stock grants and options	658		695
Provision for credit losses	310		549
(Increase) decrease in accounts receivable and accrued income	(218)		(844)
Additions to deferred leasing costs	(1,862)		(1,862)
(Increase) decrease in prepaid expenses	2,399		2,226
Increase in other assets	(7,711)		(1,886)
Increase in accounts payable, accrued expenses and other liabilities	4,309		(1,024)
Decrease in deferred income	(3,379)		(4,359)
Net cash provided by operating activities	42,745		34,043
Cash flows from investing activities:
Acquisitions of real estate investments (1)	(8,545)	[1]	0
Additions to real estate investments	(7,002)		(7,322)
Additions to development and redevelopment projects	(6,343)		(4,054)
Proceeds from sale of property	6,679		0
Net cash used in investing activities	(15,211)		(11,376)
Cash flows from financing activities:
Proceeds from notes payable (1)	0	[1]	83,600
Repayments on notes payable	(10,923)		(47,152)
Proceeds from revolving credit facility	11,000		123,000
Repayments on revolving credit facility	(11,000)		(161,000)
Additions to deferred debt costs	(1,303)		(1,254)
Proceeds from the issuance of:
Common stock	8,159		12,683
Partnership units	8,877		0
Preferred stock redemption costs	0		(9)
Distributions to:
Common stockholders	(15,683)		(14,489)
Noncontrolling interest	(5,717)		(4,978)
Net cash used in financing activities	(23,002)		(21,855)
Net increase in cash and cash equivalents	4,532		812
Cash and cash equivalents, beginning of period	17,297		12,133
Cash and cash equivalents, end of period	21,829		12,945
Series C Preferred Stock
Proceeds from the issuance of:
Series C preferred stock	0		135,221
Distributions to:
Preferred stockholders	(4,812)		(1,283)
Series A Preferred Stock
Proceeds from the issuance of:
Preferred stock redemption payments	0		(60,000)
Distributions to:
Preferred stockholders	(1,600)		(3,613)
Series B Preferred Stock
Proceeds from the issuance of:
Preferred stock redemption payments	0		(79,328)
Distributions to:
Preferred stockholders	$ 0		$ (3,253)

[1] The 2014 acquisition of real estate and proceeds from notes payable each exclude $11,000 in connection with the sale and leaseback of the Company's Olney property.