XML 62 R53.htm IDEA: XBRL DOCUMENT v3.22.2.2

Multi-family Loans, at Fair Value - Narrative (Details) - Multi-family loans - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Unrealized gains (losses)	$ (2,500,000)	$ 400,000	$ (3,000,000)	$ 700,000
Loan premiums, early redemption	$ 7,100	$ 100,000	$ 1,000,000	$ 2,100,000

X

- Definition

Loan Premiums, Loans and Preferred Equity and Mezzanine Loans, Early Redemption

+ References

No definition available.

+ Details

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

X

- Definition

Unrealized Gain (Loss) Loans and Preferred Equity

+ References

No definition available.

+ Details

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

X

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

Name:	srt_MortgageLoansOnRealEstateLineItems
Namespace Prefix:	srt_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Details

Name:	us-gaap_InvestmentTypeAxis=nymt_MezzanineLoanandPreferredEquityInvestmentsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: