XML 106 R80.htm IDEA: XBRL DOCUMENT
v3.19.3.a.u2

Use of Special Purpose Entities (SPE) and Variable Interest Entities (VIE) - Classification and Carrying Value of Unconsolidated VIEs (Details) - Variable Interest Entity, Not Primary Beneficiary - USD ($) $ in Thousands | Dec. 31, 2019 | Dec. 31, 2018
--- | --- | ---
Variable Interest Entity [Line Items] |  |
Total assets | $ 400,914 | $ 269,753
ABS |  |
Variable Interest Entity [Line Items] |  |
Total assets | 49,214 |
Preferred equity investments in multi-family properties |  |
Variable Interest Entity [Line Items] |  |
Total assets | 279,908 | 195,101
Mezzanine loans on multi-family properties |  |
Variable Interest Entity [Line Items] |  |
Total assets | 6,220 | 10,926
Equity investments in entities that invest in residential properties and loans |  |
Variable Interest Entity [Line Items] |  |
Total assets | 65,572 | 10,954
Mulit Family CMBS |  |
Variable Interest Entity [Line Items] |  |
Total assets |  | 52,772
Investment securities available for sale, at fair value |  |
Variable Interest Entity [Line Items] |  |
Total assets | 49,214 | 52,700
Investment securities available for sale, at fair value | ABS |  |
Variable Interest Entity [Line Items] |  |
Total assets | 49,214 |
Investment securities available for sale, at fair value | Preferred equity investments in multi-family properties |  |
Variable Interest Entity [Line Items] |  |
Total assets | 0 | 0
Investment securities available for sale, at fair value | Mezzanine loans on multi-family properties |  |
Variable Interest Entity [Line Items] |  |
Total assets | 0 | 0
Investment securities available for sale, at fair value | Equity investments in entities that invest in residential properties and loans |  |
Variable Interest Entity [Line Items] |  |
Total assets | 0 | 0
Investment securities available for sale, at fair value | Mulit Family CMBS |  |
Variable Interest Entity [Line Items] |  |
Total assets |  | 52,700
Receivables and other assets |  |
Variable Interest Entity [Line Items] |  |
Total assets |  | 72
Receivables and other assets | Preferred equity investments in multi-family properties |  |
Variable Interest Entity [Line Items] |  |
Total assets |  | 0
Receivables and other assets | Mezzanine loans on multi-family properties |  |
Variable Interest Entity [Line Items] |  |
Total assets |  | 0
Receivables and other assets | Equity investments in entities that invest in residential properties and loans |  |
Variable Interest Entity [Line Items] |  |
Total assets |  | 0
Receivables and other assets | Mulit Family CMBS |  |
Variable Interest Entity [Line Items] |  |
Total assets |  | 72
Preferred equity and mezzanine loan investments |  |
Variable Interest Entity [Line Items] |  |
Total assets | 180,045 | 165,555
Preferred equity and mezzanine loan investments | ABS |  |
Variable Interest Entity [Line Items] |  |
Total assets | 0 |
Preferred equity and mezzanine loan investments | Preferred equity investments in multi-family properties |  |
Variable Interest Entity [Line Items] |  |
Total assets | 173,825 | 154,629
Preferred equity and mezzanine loan investments | Mezzanine loans on multi-family properties |  |
Variable Interest Entity [Line Items] |  |
Total assets | 6,220 | 10,926
Preferred equity and mezzanine loan investments | Equity investments in entities that invest in residential properties and loans |  |
Variable Interest Entity [Line Items] |  |
Total assets | 0 | 0
Preferred equity and mezzanine loan investments | Mulit Family CMBS |  |
Variable Interest Entity [Line Items] |  |
Total assets |  | 0
Investments in unconsolidated entities |  |
Variable Interest Entity [Line Items] |  |
Total assets | 171,655 | 51,426
Investments in unconsolidated entities | ABS |  |
Variable Interest Entity [Line Items] |  |
Total assets | 0 |
Investments in unconsolidated entities | Preferred equity investments in multi-family properties |  |
Variable Interest Entity [Line Items] |  |
Total assets | 106,083 | 40,472
Investments in unconsolidated entities | Mezzanine loans on multi-family properties |  |
Variable Interest Entity [Line Items] |  |
Total assets | 0 | 0
Investments in unconsolidated entities | Equity investments in entities that invest in residential properties and loans |  |
Variable Interest Entity [Line Items] |  |
Total assets | $ 65,572 | 10,954
Investments in unconsolidated entities | Mulit Family CMBS |  |
Variable Interest Entity [Line Items] |  |
Total assets |  | $ 0

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: | us-gaap_VariableInterestEntityLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Carrying amount of the assets in the reporting entity's statement of financial position that relate to the reporting entity's variable interest in the Variable Interest Entity (VIE), where the reporting entity is not the VIE's primary beneficiary. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 50 -Paragraph 4 -Subparagraph a -URI http://asc.fasb.org/extlink&oid=118582676&loc=d3e5728-111685 + Details
Name: | us-gaap_VariableInterestEntityNonconsolidatedCarryingAmountAssets
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Details
Name: | us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis=us-gaap_VariableInterestEntityNotPrimaryBeneficiaryMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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

X
- Details
Name: | us-gaap_InvestmentTypeAxis=nymt_PreferredEquityInvestmentonMultifamilyPropertiesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_InvestmentTypeAxis=nymt_MezzanineConstructionLoanonMultifamilyPropertiesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_InvestmentTypeAxis=nymt_EquityInvestmentinEntitiesthatInvestinMultifamilyPropertiesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_InvestmentTypeAxis=nymt_MulitFamilyCMBSMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_BalanceSheetLocationAxis=nymt_InvestmentSecuritiesAvailableforSaleAtFairValueMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_BalanceSheetLocationAxis=nymt_ReceivablesAndOtherAssetsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_BalanceSheetLocationAxis=nymt_MezzanineLoanandPreferredEquityInvestmentsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_BalanceSheetLocationAxis=nymt_InvestmentinUnconsolidatedEntitiesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |