Organization	9 Months Ended
Sep. 30, 2017
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Organization	Organization New York Mortgage Trust, Inc., together with its consolidated subsidiaries ("NYMT," "we," "our," or the “Company"), is a real estate investment trust, or REIT, in the business of acquiring, investing in, financing and managing mortgage-related and residential housing-related assets and financial assets. Our objective is to deliver stable distributions to our stockholders over diverse economic conditions through a combination of income generated by net interest margin and net realized capital gains from our diversified investment portfolio. Our portfolio includes residential mortgage loans, including loans sourced from distressed markets and second mortgage loans, multi-family CMBS, preferred equity and joint venture equity investments in, and mezzanine loans to, owners of multi-family properties, equity and debt securities issued by entities that invest in residential and commercial real estate, non-Agency RMBS, Agency RMBS consisting of fixed-rate, adjustable-rate and hybrid adjustable-rate RMBS and Agency IOs consisting of interest only and inverse interest-only RMBS that represent the right to the interest component of the cash flow from a pool of mortgage loans and certain other investments in mortgage-related and residential housing-related assets and financial assets. The Company conducts its business through the parent company, New York Mortgage Trust, Inc., and several subsidiaries, including special purpose subsidiaries established for residential loan, distressed residential loan and CMBS securitization purposes, taxable REIT subsidiaries ("TRSs") and qualified REIT subsidiaries ("QRSs"). The Company consolidates all of its subsidiaries under generally accepted accounting principles in the United States of America (“GAAP”). The Company is organized and conducts its operations to qualify as a REIT for federal income tax purposes. As such, the Company will generally not be subject to federal income tax on that portion of its income that is distributed to stockholders if it distributes at least 90% of its REIT taxable income to its stockholders by the due date of its federal income tax return and complies with various other requirements.

Organization

New York Mortgage Trust, Inc., together with its consolidated subsidiaries ("NYMT," "we," "our," or the “Company"), is a real estate investment trust, or REIT, in the business of acquiring, investing in, financing and managing mortgage-related and residential housing-related assets and financial assets. Our objective is to deliver stable distributions to our stockholders over diverse economic conditions through a combination of income generated by net interest margin and net realized capital gains from our diversified investment portfolio. Our portfolio includes residential mortgage loans, including loans sourced from distressed markets and second mortgage loans, multi-family CMBS, preferred equity and joint venture equity investments in, and mezzanine loans to, owners of multi-family properties, equity and debt securities issued by entities that invest in residential and commercial real estate, non-Agency RMBS, Agency RMBS consisting of fixed-rate, adjustable-rate and hybrid adjustable-rate RMBS and Agency IOs consisting of interest only and inverse interest-only RMBS that represent the right to the interest component of the cash flow from a pool of mortgage loans and certain other investments in mortgage-related and residential housing-related assets and financial assets.

The Company conducts its business through the parent company, New York Mortgage Trust, Inc., and several subsidiaries, including special purpose subsidiaries established for residential loan, distressed residential loan and CMBS securitization purposes, taxable REIT subsidiaries ("TRSs") and qualified REIT subsidiaries ("QRSs"). The Company consolidates all of its subsidiaries under generally accepted accounting principles in the United States of America (“GAAP”).

The Company is organized and conducts its operations to qualify as a REIT for federal income tax purposes. As such, the Company will generally not be subject to federal income tax on that portion of its income that is distributed to stockholders if it distributes at least 90% of its REIT taxable income to its stockholders by the due date of its federal income tax return and complies with various other requirements.