Consolidated Statements of Operations (Unaudited) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Income from loans and other investments
Interest and related income	$ 358,557	$ 200,114	$ 876,676	$ 583,941
Less: Interest and related expenses	202,375	82,690	439,708	243,413
Income from loans and other investments, net	156,182	117,424	436,968	340,528
Other expenses
Management and incentive fees	25,911	19,342	76,462	60,094
General and administrative expenses	12,932	10,841	37,701	32,108
Total other expenses	38,843	30,183	114,163	92,202
(Increase) decrease in current expected credit loss reserve	(12,248)	(2,767)	(22,694)	49,432
Income before income taxes	105,091	84,474	300,111	297,758
Income tax provision	1,172	70	2,064	346
Net income	103,919	84,404	298,047	297,412
Net income attributable to non-controlling interests	(673)	(647)	(1,864)	(2,158)
Net income attributable to Blackstone Mortgage Trust, Inc.	$ 103,246	$ 83,757	$ 296,183	$ 295,254
Net income per share of common stock
Net income per share of common stock basic (in dollars per share)	$ 0.60	$ 0.56	$ 1.74	$ 2.00
Net income per share of common stock diluted (in dollars per share)	$ 0.59	$ 0.56	$ 1.71	$ 2.00
Weighted-average shares of common stock outstanding
Weighted-average shares of common stock outstanding, basic (in shares)	170,971,874	149,214,819	170,303,470	147,971,737
Weighted-average shares of common stock outstanding, diluted (in shares)	185,316,078	149,214,819	182,011,842	147,971,737