Consolidated Statements of Cash Flows (Unaudited) (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011
Cash flows from operating activities
Net income	$ 26,284	$ 21,623
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization (including amortization of deferred financing costs)	8,552	6,891
Amortization of lease intangibles	5,028	3,316
Straight-lining of rental income	(2,662)	(937)
Loan discount accretion	(5,984)	(11,167)
Discount accretion received in cash	14,065	13,290
Earnings of preferred equity investments		(498)
Distributions of income from preferred equity investments	97	336
Income of equity investments	(13,654)	(4,340)
Distributions of income from equity investments	17,097	8,081
Restricted cash held in escrows	(4,063)	750
Gain on sale of equity investment	(397)	(207)
Gain on sale of securities carried at fair value	(41)	(131)
Unrealized gain on securities carried at fair value	(7,254)	798
Unrealized gain on loan securities carried at fair value	(447)	(2,772)
Tenant leasing costs	(3,211)	(2,448)
Impairment loss on investment in real estate	698	3,000
Gain on extinguishment of debt		(8,514)
(Gain) loss on sale of real estate investments	(945)	58
Bad debt (recovery) expense	(116)	332
Net change in interest receivable	(293)	19
Net change in accounts receivable	533	688
Net change in accounts payable and accrued liabilities	4,260	1,284
Net cash provided by operating activities	37,712	29,659
Cash flows from investing activities
Investments in real estate	(29,975)	(5,788)
Investment in equity investments	(47,925)	(67,901)
Investment in preferred equity investments	(4,000)	(7,208)
Proceed from sale of investment in real estate	7,024	2,151
Proceeds from sale of equity investments	2,297	6,000
Return of capital distribution from equity investments	83,736	26,432
Purchase of securities carried at fair value	(5,654)	(568)
Proceeds from sale of securities carried at fair value	4,614	26,281
Proceeds from payoff of loan securities		8,748
Restricted cash held in escrows	(4,478)	2,828
Issuance and acquisition of loans receivable	(64,970)	(44,512)
Collection of loans receivable	37,126	43,410
Net cash used in investing activities	22,205	(10,127)
Cash flows from financing activities
Proceeds from mortgage loans payable	15,897	11,000
Principal payments of mortgage loans payable	(8,740)	(47,307)
Proceeds from revolving line of credit		27,324
Proceeds from issuance of Series D Preferred Shares	77,572
Proceeds from issuance of senior notes payable	86,250
Payment of revolving line of credit	(40,000)	(52,774)
Proceeds from note payable		15,150
Restricted cash held in escrows	(2,818)	99
Deferred financing costs	(3,766)	(611)
Contribution from non-controlling interest	4,340	300
Distribution to non-controlling interest	(6,115)	(327)
Purchase of non-controlling interests	(400)
Issuance of Common Shares through offering		61,386
Issuance of Common Shares under Dividend Reinvestment Plan	397	2,064
Dividend paid on Common Shares	(16,113)	(14,140)
Dividend paid on Series D Preferred Shares	(3,712)
Dividend paid on Series C Preferred Shares		(176)
Net cash provided by financing activities	102,792	1,988
Net increase in cash and cash equivalents	118,299	21,520
Cash and cash equivalents at beginning of period	40,952	45,257
Cash and cash equivalents at end of period	159,251	66,777
Supplemental Disclosure of Cash Flow Information
Interest paid	11,248	12,588
Taxes paid	317	52
Supplemental Disclosure on Non-Cash Investing and Financing Activities
Dividends accrued on Common Shares	5,375	5,356
Dividends accrued on Series C Preferred Shares		39
Dividends accrued on Series D Preferred Shares	2,786
Capital expenditures accrued	2,277	684
Transfer to loan securities carried at fair value		662
Transfer from loans receivable	(2,938)	(6,534)
Transfer from preferred equity	(3,923)	(2,022)
Transfer to equity investment	6,861	4,650
Transfer to loan receivable	6,550	12,544
Transfer from equity investment	(12,400)
Transfer to additional paid-in capital	5,487
Transfer to non-controlling interests	$ 363