CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
CASH FLOWS FROM OPERATING ACTIVITIES:
Net Income (Loss)	$ 5,067	$ (1,123)
Adjustments to Reconcile Net Income (Loss) to Net Cash Provided by Operating Activities:
Depreciation	23,059	22,548
Amortization of Deferred Financing Costs	804	854
Other Amortization	7,997	8,001
Provision for Bad Debt	663	164
Equity in Income of Joint Ventures	(2,966)	(20)
Distributions from Joint Ventures	962	0
(Gain) Loss on Sale of Real Estate	(735)	2,812
Loss from Retirement of Debt	0	1,150
Mark-to-Market Loss on Interest Rate Protection Agreements	0	4
Increase in Tenant Accounts Receivable, Prepaid Expenses and Other Assets, Net	(3,878)	(1,675)
Decrease (Increase) in Deferred Rent Receivable	404	(1,351)
Decrease in Accounts Payable, Accrued Expenses, Other Liabilities, Rents Received in Advance and Security Deposits	(8,324)	(10,107)
Payments of Premiums, Discounts and Prepayment Penalties Associated with Retirement of Debt	0	(856)
Cash Book Overdraft	1,082	0
Net Cash Provided by Operating Activities	24,135	20,401
CASH FLOWS FROM INVESTING ACTIVITIES:
Acquisitions of Real Estate	(13,262)	(9,745)
Additions to Investment in Real Estate and Non-Acquisition Tenant Improvements and Lease Costs	(22,869)	(27,060)
Net Proceeds from Sales of Investments in Real Estate	3,244	10,670
Contributions to and Investments in Joint Ventures	0	(18)
Distributions from Joint Ventures	2,074	0
Repayments of Notes Receivable	17,080	152
(Increase) Decrease in Escrows	(123)	599
Net Cash Used in Investing Activities	(13,856)	(25,402)
CASH FLOWS FROM FINANCING ACTIVITIES:
Debt and Equity Issuance and Redemption Costs	(2,035)	(98)
Proceeds from the Issuance of Common Stock, Net of Underwriter’s Discount	0	132,258
Repurchase and Retirement of Restricted Stock	(1,475)	(2,401)
Common Stock and Unit Distributions Paid	(9,740)	0
Preferred Dividends Paid	(1,471)	(4,289)
Redemption of Preferred Stock	(75,000)	0
Payments on Interest Rate Swap Agreement	0	(305)
Repayments on Mortgage Loans Payable	(3,197)	(17,774)
Repayments of Senior Unsecured Notes	0	(3,995)
Proceeds from Unsecured Term Loan	200,000	0
Proceeds from Unsecured Credit Facility	105,000	52,000
Repayments on Unsecured Credit Facility	(226,000)	(132,000)
Net Cash (Used in) Provided by Financing Activities	(13,918)	23,396
Net Effect of Exchange Rate Changes on Cash and Cash Equivalents	(30)	(14)
Net (Decrease) Increase in Cash and Cash Equivalents	(3,639)	18,395
Cash and Cash Equivalents, Beginning of Year	7,577	4,938
Cash and Cash Equivalents, End of Year	$ 3,908	$ 23,319