Consolidated Statements of Operations - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Income from loans and other investments
Interest and related income	$ 187,524	$ 204,875
Less: Interest and related expenses	78,372	104,239
Income from loans and other investments, net	109,152	100,636
Other expenses
Management and incentive fees	19,207	19,277
General and administrative expenses	10,597	11,791
Total other expenses	29,804	31,068
Decrease (increase) in current expected credit loss reserve	1,293	(122,702)
Income (loss) before income taxes	80,641	(53,134)
Income tax provision	101	149
Net income (loss)	80,540	(53,283)
Net income attributable to non-controlling interests	(638)	(67)
Net income (loss) attributable to Blackstone Mortgage Trust, Inc.	$ 79,902	$ (53,350)
Net income (loss) per share of common stock basic and diluted	$ 0.54	$ (0.39)
Weighted-average shares of common stock outstanding, basic and diluted	147,336,936	135,619,264