XML 144 R129.htm IDEA: XBRL DOCUMENT
v3.8.0.1

Business Combinations - Contingent Consideration (Details) - RiverBanc, RBMI, and RBDHC $ in Millions | May 16, 2016 USD ($)
--- | ---
Cash Holdback |
Business Acquisition, Contingent Consideration [Line Items] |
Contingent consideration | $ 3.0
Reimbursement to previous beneficial owner for purchase of company shares | $ 3.0
Contingent consideration term | 90 days
Severance Holdback |
Business Acquisition, Contingent Consideration [Line Items] |
Contingent consideration | $ 0.8

X
- Definition Contingent Consideration, Term + References No definition available. + Details
Name: | nymt_ContingentConsiderationTerm
Namespace Prefix: | nymt_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Reimbursement to Previous Beneficial Owner for Purchase of Company Shares + References No definition available. + Details
Name: | nymt_ReimbursementtoPreviousBeneficialOwnerforPurchaseofCompanyShares
Namespace Prefix: | nymt_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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

X
- Definition Amount of liability recognized arising from contingent consideration in a business combination, expected to be settled within one year or the normal operating cycle, if longer. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 35 -Paragraph 1 -Subparagraph b -URI http://asc.fasb.org/extlink&oid=6911338&loc=d3e6819-128478 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 25 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=6911189&loc=d3e6408-128476 + Details
Name: | us-gaap_BusinessCombinationContingentConsiderationLiabilityCurrent
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Details
Name: | us-gaap_ContingentConsiderationByTypeAxis=nymt_CashHoldbackMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_BusinessAcquisitionAxis=nymt_RiverBancRBMIandRBDHCMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ContingentConsiderationByTypeAxis=nymt_SeveranceHoldbackMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |