Condensed Consolidated Statements of Cash Flows (Unaudited) (USD $)
In Thousands, unless otherwise specified
6 Months Ended
Jun. 30, 2012
Jun. 30, 2011
Cash flows from operating activities:    
Net income $ 16,558 $ 31,662
Adjustments to reconcile net income to net cash provided by operating activities:    
Depreciation 30,417 29,569
Amortization of intangible lease assets and below market lease intangibles, net 10,944 11,292
Amortization of deferred financing costs 3,458 3,380
Amortization of premiums on mortgage notes receivable 358 349
Accretion of discount on marketable securities 0 (846)
Amortization of fair value adjustments of mortgage notes payable assumed 949 939
Bad debt expense 55 (92)
Impairment of real estate assets 1,979 0
Equity in income of unconsolidated joint ventures (467) (390)
Return on investment from unconsolidated joint ventures 467 465
Property condemnation gain (55) (92)
Gain on sale of marketable securities 0 (15,587)
Changes in assets and liabilities:    
Rents and tenant receivables (3,110) (4,858)
Prepaid expenses and other assets 1,509 1,886
Accounts payable and accrued expenses 1,199 1,683
Due to affiliates, deferred rental income and other liabilities (3,312) (4,843)
Net cash provided by operating activities 60,949 54,517
Cash flows from investing activities:    
Investment in real estate and related assets and other capital expenditures (4,249) (94,143)
Proceeds from sale of marketable securities 0 82,061
Principal repayments from mortgage notes receivable and real estate assets under direct financing leases 1,765 1,614
Return of investment from unconsolidated joint ventures 648 1,248
Refund of property escrow deposits 0 1,090
Payment of property escrow deposits 0 (1,290)
Proceeds from easement of real estate assets 75 247
Change in restricted cash 2,825 (2,464)
Net cash provided by (used in) investing activities 1,064 (11,637)
Cash flows from financing activities:    
Redemptions of common stock (28,893) (24,120)
Distributions to investors (36,739) (35,290)
Proceeds from notes payable, line of credit and repurchase agreement 77,000 140,796
Repayment of notes payable, line of credit and repurchase agreement (98,035) (147,187)
Payment of loan deposits (1,015) 0
Deferred financing costs paid (144) (1,404)
Net cash used in financing activities (87,826) (67,205)
Net decrease in cash and cash equivalents (25,813) (24,325)
Cash and cash equivalents, beginning of period 53,205 45,791
Cash and cash equivalents, end of period $ 27,392 $ 21,466