Consolidated Statements of Operations (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012
Revenue:
Investment interest income	$ 31,256	$ 28,745	$ 62,536	$ 56,701
Investment interest expense	(7,278)	(8,474)	(14,761)	(16,923)
Net interest margin	23,978	20,271	47,775	39,778
Rental income	27,858	25,540	55,027	50,371
Fee and other income	6,786	2,062	14,071	3,520
Total revenue	58,622	47,873	116,873	93,669
Expenses:
Interest expense	9,978	10,764	19,644	21,663
Real estate operating expense	14,911	13,487	29,321	27,284
Compensation expense	6,337	5,246	13,284	10,984
General and administrative expense	3,562	3,783	7,338	7,608
Provision for losses	500	500	1,000	1,000
Depreciation and amortization expense	8,618	7,631	17,188	15,294
Total expenses	43,906	41,411	87,775	83,833
Operating Income	14,716	6,462	29,098	9,836
Other income (expense)	69	(1,471)	145	(1,438)
Gains (losses) on assets	224	2,518	221	2,529
Gains (losses) on extinguishment of debt	0	0	0	1,574
Change in fair value of financial instruments	(76,020)	(11,169)	(175,777)	(120,092)
Income (loss) before taxes and discontinued operations	(61,011)	(3,660)	(146,313)	(107,591)
Income tax benefit (provision)	673	90	634	357
Income (loss) from continuing operations	(60,338)	(3,570)	(145,679)	(107,234)
Income (loss) from discontinued operations	0	0	0	0
Net income (loss)	(60,338)	(3,570)	(145,679)	(107,234)
(Income) loss allocated to preferred shares	(5,589)	(3,419)	(10,807)	(6,829)
(Income) loss allocated to noncontrolling interests	50	38	77	93
Net income (loss) allocable to common shares	$ (65,877)	$ (6,951)	$ (156,409)	$ (113,970)
Earnings (loss) per share-Basic:
Continuing operations	$ (0.94)	$ (0.14)	$ (2.40)	$ (2.42)
Discontinued operations	$ 0.00	$ 0.00	$ 0.00	$ 0.00
Total earnings (loss) per share-Basic	$ (0.94)	$ (0.14)	$ (2.40)	$ (2.42)
Weighted-average shares outstanding-Basic	69,757,807	49,902,247	65,086,432	47,026,586
Earnings (loss) per share-Diluted:
Continuing operations	$ (0.94)	$ (0.14)	$ (2.40)	$ (2.42)
Discontinued operations	$ 0.00	$ 0.00	$ 0.00	$ 0.00
Total earnings (loss) per share-Diluted	$ (0.94)	$ (0.14)	$ (2.40)	$ (2.42)
Weighted-average shares outstanding-Diluted	69,757,807	49,902,247	65,086,432	47,026,586
Distributions declared per common share	$ 0.13	$ 0.08	$ 0.25	$ 0.16