XML 69 R60.htm IDEA: XBRL DOCUMENT
v3.23.3

Investment Securities Available For Sale, at Fair Value - Weighted Average Lives for Available-for-Sale Securities (Details) - USD ($) $ in Thousands | Sep. 30, 2023 | Dec. 31, 2022
--- | --- | ---
Investments, Debt and Equity Securities [Abstract] |  |
0 to 5 years | $ 42,759 | $ 39,655
Over 5 to 10 years | 1,546,244 | 46,558
10+ years | 13,212 | 13,346
Total | $ 1,602,215 | $ 99,559

X
- Definition Debt Securities, Available-For-Sale, Excluding Accrued Interest, Including Fair Value Option + References No definition available. + Details
Name: | nymt_DebtSecuritiesAvailableForSaleExcludingAccruedInterestIncludingFairValueOption
Namespace Prefix: | nymt_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Debt Securities, Trading, Available-For-Sale, Debt Maturities, Zero Through Year Five, Fair Value + References No definition available. + Details
Name: | nymt_DebtSecuritiesTradingAvailableForSaleDebtMaturitiesZeroThroughYearFiveFairValue
Namespace Prefix: | nymt_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Debt Securities, Trading, Available-for-sale, Maturity, Allocated and Single Maturity Date, after 10 Years, Fair Value + References No definition available. + Details
Name: | nymt_DebtSecuritiesTradingAvailableforsaleMaturityAllocatedandSingleMaturityDateafter10YearsFairValue
Namespace Prefix: | nymt_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Debt Securities, Trading, Available-for-sale, Maturity, Allocated and Single Maturity Date, after Five Through Ten Years, Fair Value + References No definition available. + Details
Name: | nymt_DebtSecuritiesTradingAvailableforsaleMaturityAllocatedandSingleMaturityDateafterFiveThroughTenYearsFairValue
Namespace Prefix: | nymt_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- References No definition available. + Details
Name: | us-gaap_InvestmentsDebtAndEquitySecuritiesAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration