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 earnings	$ 10,111	$ 26,588
Adjustments to reconcile net earnings to net cash flow provided by operating activities:
Depreciation and amortization expense	7,474	4,530
Impairment charges	3,146	2,507
Gains from dispositions of real estate	(3,241)	(319)
Deferred rental revenue, net of allowance	(1,379)	(184)
Allowance for deferred rent and accounts receivable	16,739	215
Amortization of above-market and below-market leases	(211)	(262)
Accretion expense	1,584	296
Stock-based employee compensation expense	372	311
Changes in assets and liabilities:
Net investment in direct financing leases	342	211
Accounts receivable, net	(14,876)	(150)
Other assets	(3,334)	75
Environmental remediation costs	(3,811)	(110)
Accounts payable and accrued liabilities	(2,480)	1,616
Net cash flow provided by operating activities	10,436	35,324
Cash flows from investing activities:
Property acquisitions and capital expenditures	(2,465)	(166,594)
Proceeds from dispositions of real estate	5,013	784
Decrease in cash held for property acquisitions	(2,016)	60
Collection of notes and mortgages receivable	928	307
Issuance of notes and mortgages receivable	(1,011)	(30,640)
Net cash flow provided by (used in) investing activities	449	(196,083)
Cash flows from financing activities:
Borrowings under credit agreement	4,000	231,253
Repayments under credit agreement		(122,553)
Repayments under term loan agreement	(390)	(390)
Payments of cash dividends		(30,543)
Payment of loan origination costs	(3,701)	(175)
Net proceeds from issuance of common stock		91,986
Net cash flow provided by (used in) financing activities	(91)	169,578
Net increase in cash and cash equivalents	10,794	8,819
Cash and cash equivalents at beginning of period	7,698	6,122
Cash and cash equivalents at end of period	18,492	14,941
Supplemental disclosures of cash flow information
Interest paid	2,730	2,466
Income taxes paid, net	178	146
Environmental remediation costs	$ 1,162	$ 1,161