Consolidated Statements of Operations - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Income from loans and other investments
Interest and related income	$ 410,635	$ 184,766	$ 53,164
Less: Interest and related expenses	152,416	69,143	18,017
Income from loans and other investments, net	258,219	115,623	35,147
Other expenses
Management and incentive fees	42,886	19,491	5,937
General and administrative expenses	36,709	27,799	11,505
Total other expenses	79,595	47,290	17,442
Gain on investments at fair value	21,967	13,258	7,417
Income from equity investments in unconsolidated subsidiaries	11,798	28,036
Loss on deconsolidation of subsidiary		(8,615)
Valuation allowance on loans held-for-sale			1,259
Other income			38
Income before income taxes	212,389	101,012	26,419
Income tax provision	504	518	995
Net income	211,885	100,494	25,424
Net income attributable to non-controlling interests	(15,056)	(10,449)	(10,392)
Net income attributable to Blackstone Mortgage Trust, Inc.	$ 196,829	$ 90,045	$ 15,032
Net income per share of common stock basic and diluted	$ 2.41	$ 1.86	$ 0.81
Weighted-average shares of common stock outstanding, basic and diluted	81,740,227	48,394,478	18,520,052