XML 76 R65.htm IDEA: XBRL DOCUMENT v3.8.0.1

Residential Mortgage Loans, At Fair Value - Components of Net Gain on Residential Mortgages (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016
Mortgage Loans on Real Estate [Abstract]
Net realized gain on payoff and sale of loans	$ 493	$ 0
Net unrealized gains	$ 224	$ 0

X

- Definition

Net Realized Gain (Loss) On Payoff And Sale Of Mortgage Loans

+ References

No definition available.

+ Details

Name:	nymt_NetRealizedGainLossOnPayoffAndSaleOfMortgageLoans
Namespace Prefix:	nymt_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- Definition

Unrealized Gain (Loss) On Real Estate Mortgage Loans, Net

+ References

No definition available.

+ Details

Name:	nymt_UnrealizedGainLossOnRealEstateMortgageLoansNet
Namespace Prefix:	nymt_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- References

No definition available.

+ Details

Name:	us-gaap_MortgageLoansOnRealEstateAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration