CONSOLIDATED STATEMENTS OF CASH FLOWS - Unaudited (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2012	Mar. 31, 2011
OPERATING ACTIVITIES
Net income	$ 5,522	$ 4,902
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization from continuing operations	15,929	14,247
Depreciation and amortization from discontinued operations	17	0
Stock-based compensation expense	1,334	815
Changes in operating assets and liabilities:
Accrued income and other assets	991	240
Accounts payable, accrued expenses and prepaid rent	(11,073)	(6,067)
Other	(300)	(80)
NET CASH PROVIDED BY OPERATING ACTIVITIES	12,420	14,057
INVESTING ACTIVITIES
Real estate development	(12,584)	(2,786)
Purchases of real estate	(3,475)	0
Real estate improvements	(3,902)	(6,288)
Proceeds from sales of real estate investments	539	0
Changes in accrued development costs	(158)	(157)
Changes in other assets and other liabilities	(2,475)	(1,908)
NET CASH USED IN INVESTING ACTIVITIES	(21,739)	(10,825)
FINANCING ACTIVITIES
Proceeds from bank borrowings	63,895	85,224
Repayments on bank borrowings	(99,494)	(32,296)
Proceeds from mortgage notes payable	54,000	0
Principal payments on mortgage notes payable	(9,736)	(41,269)
Debt issuance costs	(793)	(34)
Distributions paid to stockholders	(14,908)	(13,972)
Proceeds from common stock offerings	16,284	0
Proceeds from exercise of stock options	0	6
Proceeds from dividend reinvestment plan	64	61
Other	38	(981)
NET CASH PROVIDED BY (USED IN) FINANCING ACTIVITIES	9,350	(3,261)
INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS	31	(29)
CASH AND CASH EQUIVALENTS AT BEGINNING OF PERIOD	174	137
CASH AND CASH EQUIVALENTS AT END OF PERIOD	205	108
SUPPLEMENTAL CASH FLOW INFORMATION
Cash paid for interest, net of amount capitalized of $1,042 and $839 for 2012 and 2011, respectively	8,967	8,649
Fair value of common stock awards issued to employees and directors, net of forfeitures	$ 4,492	$ 3,536