CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012
CASH FLOWS FROM OPERATING ACTIVITIES:
Net Income (Loss)	$ 10,239	$ (9,311)
Adjustments to Reconcile Net Income (Loss) to Net Cash Provided by Operating Activities:
Depreciation	46,479	51,881
Amortization of Deferred Financing Costs	1,687	1,725
Other Amortization	15,076	15,981
Impairment of Real Estate	1,605	1,246
Provision for Bad Debt	476	591
Equity in Income of Joint Ventures	(47)	(128)
Distributions from Joint Ventures	0	27
Gain on Sale of Real Estate	(10,669)	(7,585)
Gain on Change in Control of Interests	0	(776)
Loss from Retirement of Debt	5,586	6,222
Mark-to-Market (Gain) Loss on Interest Rate Protection Agreements	(52)	305
Decrease in Tenant Accounts Receivable, Prepaid Expenses and Other Assets, Net	211	3,506
Increase in Deferred Rent Receivable	(2,416)	(1,614)
(Decrease) Increase in Accounts Payable, Accrued Expenses, Other Liabilities, Rents Received in Advance and Security Deposits	(18,374)	1,534
Payments of Premiums, Discounts and Prepayment Penalties Associated with Retirement of Debt	(4,147)	(3,287)
Net Cash Provided by Operating Activities	45,654	60,317
CASH FLOWS FROM INVESTING ACTIVITIES:
Acquisitions of Real Estate	(47,293)	(55,406)
Additions to Investment in Real Estate and Non-Acquisition Tenant Improvements and Lease Costs	(52,679)	(38,406)
Net Proceeds from Sales of Investments in Real Estate	50,375	23,116
Contributions to and Investments in Joint Ventures	(18)	(184)
Repayments of Notes Receivable	295	8,306
Decrease in Escrows	859	0
Net Cash Used in Investing Activities	(48,461)	(62,574)
CASH FLOWS FROM FINANCING ACTIVITIES:
Debt and Equity Issuance Costs	(311)	(287)
Proceeds from the Issuance of Common Stock, Net of Underwriter’s Discount	174,081	18,063
Repurchase and Retirement of Restricted Stock	(2,732)	(855)
Common Stock and Unit Distributions	(9,540)	0
Preferred Dividends Paid / Advanced	(6,114)	(9,525)
Redemption of Preferred Stock	(100,000)	0
Payments on Interest Rate Swap Agreement	(598)	(572)
Repayments on Mortgage and Other Loans Payable	(33,175)	(18,273)
Repayments of Senior Unsecured Notes	(28,965)	(148,310)
Proceeds from Unsecured Credit Facility	194,000	241,000
Repayments on Unsecured Credit Facility	(184,000)	(84,000)
Net Cash Provided by (Used in) Financing Activities	2,646	(2,759)
Net Effect of Exchange Rate Changes on Cash and Cash Equivalents	(43)	(1)
Net Decrease in Cash and Cash Equivalents	(161)	(5,016)
Cash and Cash Equivalents, Beginning of Year	4,938	10,153
Cash and Cash Equivalents, End of Year	$ 4,734	$ 5,136