Consolidated Statements of Operations - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Income from loans and other investments
Interest and related income	$ 204,875	$ 224,759
Less: Interest and related expenses	104,239	118,688
Income from loans and other investments, net	100,636	106,071
Other expenses
Management and incentive fees	19,277	19,790
General and administrative expenses	11,791	9,313
Total other expenses	31,068	29,103
Increase in current expected credit loss reserve	(122,702)
(Loss) income before income taxes	(53,134)	76,968
Income tax provision	149	101
Net (loss) income	(53,283)	76,867
Net income attributable to non-controlling interests	(67)	(302)
Net (loss) income attributable to Blackstone Mortgage Trust, Inc.	$ (53,350)	$ 76,565
Net (loss) income per share of common stock basic and diluted	$ (0.39)	$ 0.62
Weighted-average shares of common stock outstanding, basic and diluted	135,619,264	124,333,048