Consolidated Statements of Operations (Unaudited) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Income from loans and other investments
Interest and related income	$ 18,853	$ 6,944	$ 26,327	$ 28,423
Less: Interest and related expenses	4,407	5,147	6,492	33,902
Income (loss) from loans and other investments, net	14,446	1,797	19,835	(5,479)
Other expenses
General and administrative	4,048	3,991	9,512	6,314
Total other expenses	4,048	3,991	9,512	6,314
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		2,811		2,819
Valuation allowance on loans held-for-sale	(600)		1,200
Unrealized gain on investments at fair value	464		4,464
Fair value adjustment on investment in CT Legacy Asset		11,987		19,645
Gain on deconsolidation of subsidiary				146,380
Gain on extinguishment of debt			38
Income from equity investments in unconsolidated subsidiaries		411		1,312
Income before income taxes	10,262	13,015	16,025	158,203
Income tax (benefit) provision	(264)	166	329	467
Income from continuing operations	10,526	12,849	15,696	157,736
Income (loss) from discontinued operations, net of tax		51		(863)
Net income	10,526	12,900	15,696	156,873
Net income attributable to non-controlling interests	(2,206)	(5,901)	(7,743)	(81,038)
Net income attributable to Blackstone Mortgage Trust, Inc.	$ 8,320	$ 6,999	$ 7,953	$ 75,835
Income from continuing operations per share of common stock
Basic	$ 0.29	$ 3.00	$ 0.53	$ 33.39
Diluted	$ 0.29	$ 2.82	$ 0.53	$ 31.40
Income (loss) from discontinued operations per share of common stock
Basic		$ 0.02		$ (0.37)
Diluted		$ 0.02		$ (0.37)
Net income per share of common stock
Basic	$ 0.29	$ 3.02	$ 0.53	$ 33.02
Diluted	$ 0.29	$ 2.84	$ 0.53	$ 31.03
Weighted-average shares of common stock outstanding
Basic	28,894,515	2,317,343	14,865,530	2,296,910
Diluted	28,894,515	2,461,603	14,865,530	2,444,206