XML 65 R56.htm IDEA: XBRL DOCUMENT
v3.22.2.2

Investment Securities Available for Sale, at Fair Value - Schedule of Investment Securities Available for Sale (Details) - USD ($) $ in Thousands | Sep. 30, 2022 | Dec. 31, 2021
--- | --- | ---
Fair Value Option |  |
Amortized Cost | $ 82,891 | $ 154,581
Unrealized Gains | 7,841 | 19,517
Unrealized Losses | (11,562) | (2,774)
Fair Value | 79,170 | 171,324
CECL Securities |  |
Amortized Cost | 25,570 | 27,743
Unrealized Gains | 0 | 1,787
Unrealized Losses | (2,054) | (10)
Fair Value | 23,516 | 29,520
Total CECL Securities and Fair Value Option |  |
Amortized Cost | 108,461 | 182,324
Unrealized Gains | 7,841 | 21,304
Unrealized Losses | (13,616) | (2,784)
Fair Value | 102,686 | 200,844
Non-Agency RMBS |  |
Fair Value Option |  |
Amortized Cost | 49,566 | 100,186
Unrealized Gains | 7,700 | 949
Unrealized Losses | (9,553) | (2,636)
Fair Value | 47,713 | 98,499
CECL Securities |  |
Amortized Cost | 25,570 | 27,743
Unrealized Gains | 0 | 1,787
Unrealized Losses | (2,054) | (10)
Fair Value | 23,516 | 29,520
CMBS |  |
Fair Value Option |  |
Amortized Cost | 32,355 | 32,600
Unrealized Gains | 0 | 684
Unrealized Losses | (2,009) | (138)
Fair Value | 30,346 | 33,146
ABS |  |
Fair Value Option |  |
Amortized Cost | 970 | 21,795
Unrealized Gains | 141 | 17,884
Unrealized Losses | 0 | 0
Fair Value | $ 1,111 | $ 39,679

X
- Definition Debt Securities, Available-for-sale, CECL and Fair Value Option, Amortized Cost + References No definition available. + Details
Name: | nymt_DebtSecuritiesAvailableForSaleCECLAndFairValueOptionAmortizedCost
Namespace Prefix: | nymt_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Debt Securities, Available-for-sale, Gross Unrealized Losses, Fair Value Option + References No definition available. + Details
Name: | nymt_DebtSecuritiesAvailableForSaleGrossUnrealizedLossFairValueOption
Namespace Prefix: | nymt_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Debt Securities, Available-for-sale, Amortized Cost, Fair Value Option + References No definition available. + Details
Name: | nymt_DebtSecuritiesAvailableforsaleAmortizedCostFairValueOption
Namespace Prefix: | nymt_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Debt Securities, Available-for-sale, CECL and Fair Value Option + References No definition available. + Details
Name: | nymt_DebtSecuritiesAvailableforsaleCECLandFairValueOption
Namespace Prefix: | nymt_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Debt Securities, Available-for-sale, CECL and Fair Value Option, Accumulated Gross Unrealized Gain, before Tax + References No definition available. + Details
Name: | nymt_DebtSecuritiesAvailableforsaleCECLandFairValueOptionAccumulatedGrossUnrealizedGainbeforeTax
Namespace Prefix: | nymt_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Debt Securities, Available-for-sale, CECL and Fair Value Option, Accumulated Gross Unrealized Loss, before Tax + References No definition available. + Details
Name: | nymt_DebtSecuritiesAvailableforsaleCECLandFairValueOptionAccumulatedGrossUnrealizedLossbeforeTax
Namespace Prefix: | nymt_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Debt Securities, Available-for-sale, Fair Value Option + References No definition available. + Details
Name: | nymt_DebtSecuritiesAvailableforsaleFairValueOption
Namespace Prefix: | nymt_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Debt Securities, Available-for-sale, Unrealized Gains, Fair Value Option + References No definition available. + Details
Name: | nymt_DebtSecuritiesAvailableforsaleGrossUnrealizedGainsFairValueOption
Namespace Prefix: | nymt_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Total Debt Securities, Available for Sale, CECL and Fair Value [Abstract] + References No definition available. + Details
Name: | nymt_TotalDebtSecuritiesAvailableforSaleCECLandFairValueAbstract
Namespace Prefix: | nymt_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount, before tax, of unrealized gain in accumulated other comprehensive income (AOCI) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (b) -URI https://asc.fasb.org/extlink&oid=126970911&loc=d3e27161-111563 + Details
Name: | us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount, before tax, of unrealized loss in accumulated other comprehensive income (AOCI) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c) -URI https://asc.fasb.org/extlink&oid=126970911&loc=d3e27161-111563 + Details
Name: | us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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

X
- Definition Amortized cost excluding accrued interest, before allowance for credit loss, of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 30 -Section 45 -Paragraph 1 -URI https://asc.fasb.org/extlink&oid=124258926&loc=SL82898722-210454 + Details
Name: | us-gaap_DebtSecuritiesAvailableForSaleAmortizedCostExcludingAccruedInterestBeforeAllowanceForCreditLoss
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount excluding accrued interest, of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale). + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 30 -Section 45 -Paragraph 1 -URI https://asc.fasb.org/extlink&oid=124258926&loc=SL82898722-210454 + Details
Name: | us-gaap_DebtSecuritiesAvailableForSaleExcludingAccruedInterest
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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

X
- Details
Name: | us-gaap_FinancialInstrumentAxis=nymt_NonAgencyRMBSMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancialInstrumentAxis=nymt_CMBSMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancialInstrumentAxis=us-gaap_AssetBackedSecuritiesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |