Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014
Assets
Cash and cash equivalents	$ 96,450	$ 51,810
Restricted cash	9,556	11,591
Loans receivable, net	9,077,007	4,428,500
Equity investments in unconsolidated subsidiaries	9,441	10,604
Other assets	184,119	70,208
Total Assets	9,376,573	4,572,713
Liabilities and Equity
Accounts payable, accrued expenses, and other liabilities	93,679	61,013
Secured debt agreements	6,116,105	2,353,279
Loan participations sold	497,032	496,080
Convertible notes, net	164,026	161,455
Total Liabilities	$ 6,870,842	$ 3,071,827
Commitments and contingencies
Equity
Additional paid-in capital	$ 3,070,200	$ 2,027,404
Accumulated other comprehensive loss	(32,758)	(15,024)
Accumulated deficit	(545,791)	(547,592)
Total Blackstone Mortgage Trust, Inc. stockholders' equity	2,492,588	1,465,371
Non-controlling interests	13,143	35,515
Total Equity	2,505,731	1,500,886
Total Liabilities and Equity	9,376,573	4,572,713
Class A Common Stock [Member]
Equity
Class A common stock, $0.01 par value, 200,000,000 shares authorized, 93,702,326 and 58,269,889 shares issued and outstanding as of December 31, 2015 and 2014, respectively	$ 937	$ 583