XML 97 R83.htm IDEA: XBRL DOCUMENT v3.23.1

Derivative Instruments and Hedging Activities - Activity of Derivative Instruments Not Designated as Hedges (Details) - Trading $ in Thousands	3 Months Ended
	Mar. 31, 2023 USD ($)
Options
Derivative Instruments and Hedging Activities Disclosures [Roll Forward]
Beginning balance	$ 0
Additions	500,053
Terminations	0
Ending balance	500,053
Interest rate swaps
Derivative Instruments and Hedging Activities Disclosures [Roll Forward]
Beginning balance	0
Additions	341,300
Terminations	0
Ending balance	$ 341,300

X

- Definition

Derivative Asset (Liability), Notional Amount

+ References

No definition available.

+ Details

Name:	nymt_DerivativeAssetLiabilityNotionalAmount
Namespace Prefix:	nymt_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Definition

Derivative Instruments and Hedging Activities Disclosures [Roll Forward]

+ References

No definition available.

+ Details

Name:	nymt_DerivativeInstrumentsandHedgingActivitiesDisclosuresRollForward
Namespace Prefix:	nymt_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Additions for notional amount of other derivatives..

+ References

No definition available.

+ Details

Name:	nymt_NotionalAmountOfOtherDerivativeAdditions
Namespace Prefix:	nymt_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Definition

Settlement, expiration, or exercise for notional amount of other derivatives.

+ References

No definition available.

+ Details

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

X

- Details

Name:	us-gaap_HedgingDesignationAxis=us-gaap_NotDesignatedAsHedgingInstrumentTradingMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_DerivativeInstrumentRiskAxis=us-gaap_StockOptionMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_DerivativeInstrumentRiskAxis=us-gaap_InterestRateSwapMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: