Consolidated Statements of Operations - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Income from loans and other investments
Interest and related income	$ 1,769,043	$ 2,037,621	$ 1,338,954
Less: Interest and related expenses	1,289,972	1,366,956	710,904
Income from loans and other investments, net	479,071	670,665	628,050
Revenue from real estate owned	13,040	0	0
Gain on extinguishment of debt	5,352	4,616	0
Other income	1,064	0	0
Total net revenues	498,527	675,281	628,050
Expenses
Management and incentive fees	74,792	119,089	110,292
General and administrative expenses	53,922	51,143	52,193
Expenses from real estate owned	22,060	0	0
Other expenses	5,663	0	0
Total expenses	156,437	170,232	162,485
Increase in current expected credit loss reserve	(538,801)	(249,790)	(211,505)
Loss from unconsolidated entities	(2,748)	0	0
(Loss) income before income taxes	(199,459)	255,259	254,060
Income tax provision	2,374	5,362	3,003
Net (loss) income	(201,833)	249,897	251,057
Net income attributable to non-controlling interests	(2,255)	(3,342)	(2,415)
Net (loss) income attributable to Blackstone Mortgage Trust, Inc.	$ (204,088)	$ 246,555	$ 248,642
Net (loss) income per share of common stock, basic and diluted
Basic (in dollars per share)	$ (1.17)	$ 1.43	$ 1.46
Diluted (in dollars per share)	$ (1.17)	$ 1.43	$ 1.46
Weighted-average shares of common stock outstanding, basic and diluted
Basic (in shares)	173,782,523	172,672,038	170,631,410
Diluted (in shares)	173,782,523	172,672,038	170,631,410