Consolidated Statements of Operations (Unaudited) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Income from loans and other investments:
Interest and related income	$ 1,456	$ 14,716
Less: Interest and related expenses	777	23,342
Income (loss) from loans and other investments, net	679	(8,626)
Other expenses:
General and administrative	2,038	756
Total other expenses	2,038	756
Total other-than-temporary impairments of securities
Portion of other-than-temporary impairments of securities recognized in other comprehensive income		(160)
Net impairments recognized in earnings		(160)
Recovery of provision for loan losses		8
Valuation allowance on loans held-for-sale	(200)
Fair value adjustment on investment in CT Legacy Asset		3,954
Gain on deconsolidation of subsidiary		146,380
Income from equity investments		696
(Loss) income before income taxes	(1,559)	141,496
Income tax provision	38	301
(Loss) income from continuing operations	(1,597)	141,195
Loss from discontinued operations, net of tax		(573)
Net (loss) income	(1,597)	140,622
Net (income) loss attributable to noncontrolling interests	(1,518)	(74,069)
Net (loss) income attributable to Balckstone Mortgage Trust, Inc.	$ (3,115)	$ 66,553
(Loss) income from continuing operations per share of common stock:
Basic	$ (1.03)	$ 29.39
Diluted	$ (1.03)	$ 27.64
Loss from discontinued operations per share of common stock:
Basic		$ (0.25)
Diluted		$ (0.25)
Net (loss) income per share of common stock:
Basic	$ (1.03)	$ 29.14
Diluted	$ (1.03)	$ 27.39
Weighted average shares of common stock outstanding:
Basic	3,016,425	2,283,741
Diluted	3,016,425	2,430,147