XML 61 R51.htm IDEA: XBRL DOCUMENT v3.21.2

Multi-family Loans, at Fair Value - Narrative (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Receivables [Abstract]
Unrealized gains (losses)	$ (0.4)	$ (0.9)	$ (0.7)	$ (6.6)
Loan premiums, early redemption	$ (0.1)	$ (0.4)	$ (2.1)	$ (0.5)

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

- References

No definition available.

+ Details

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