Consolidated Statements of Operations (Unaudited) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Income from loans and other investments
Interest and related income	$ 519,342	$ 358,557	$ 1,532,618	$ 876,676
Less: Interest and related expenses	353,972	202,375	1,015,718	439,708
Income from loans and other investments, net	165,370	156,182	516,900	436,968
Other expenses
Management and incentive fees	28,882	25,911	92,747	76,462
General and administrative expenses	12,001	12,932	37,888	37,701
Total other expenses	40,883	38,843	130,635	114,163
Increase in current expected credit loss reserve	(96,900)	(12,248)	(134,530)	(22,694)
Gain on extinguishment of debt	4,541	0	4,541	0
Income before income taxes	32,128	105,091	256,276	300,111
Income tax provision	1,568	1,172	4,663	2,064
Net income	30,560	103,919	251,613	298,047
Net income attributable to non-controlling interests	(1,036)	(673)	(2,681)	(1,864)
Net income attributable to Blackstone Mortgage Trust, Inc.	$ 29,524	$ 103,246	$ 248,932	$ 296,183
Net income per share of common stock
Basic (in dollars per share)	$ 0.17	$ 0.60	$ 1.44	$ 1.74
Diluted (in dollars per share)	$ 0.17	$ 0.59	$ 1.44	$ 1.71
Weighted-average shares of common stock outstanding
Basic (in shares)	172,648,118	170,971,874	172,620,799	170,303,470
Diluted (in shares)	172,648,118	185,316,078	180,891,859	182,011,842