XML 76 R57.htm IDEA: XBRL DOCUMENT
v3.20.2

Reverse Mortgage Interests, Net - Unsecuritized Interest (Details) - USD ($) $ in Millions | Jun. 30, 2020 | Mar. 31, 2020 | Dec. 31, 2019 | Jun. 30, 2019 | Mar. 31, 2019 | Dec. 31, 2018
--- | --- | --- | --- | --- | --- | ---
Reverse Mortgage Interest [Abstract] |  |  |  |  |  |
Repurchased HECM loans (exceeds 98% MCA) | $ 804 |  | $ 789 |  |  |
Reverse mortgage interest, unpaid principal balance, unsecuritized, home equity conversion mortgage receivables | 244 |  | 250 |  |  |
Funded borrower draws not yet securitized | 53 |  | 64 |  |  |
Real estate owned (“REO”) related receivables | 37 |  | 14 |  |  |
Purchase discount, net | (127) | $ (129) | (114) | $ (163) | $ (171) | $ (164)
Total unsecuritized interests | $ 1,138 |  | $ 1,117 |  |  |

X
- Definition Reverse Mortgage Interest [Abstract] + References No definition available. + Details
Name: | nsm_ReverseMortgageInterestAbstract
Namespace Prefix: | nsm_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Reverse Mortgage Interest, Unpaid Principal Balance, Purchase Discount, Net + References No definition available. + Details
Name: | nsm_ReverseMortgageInterestUnpaidPrincipalBalancePurchaseDiscountNet
Namespace Prefix: | nsm_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Reverse Mortgage Interest, Unpaid Principal Balance, Unsecuritized + References No definition available. + Details
Name: | nsm_ReverseMortgageInterestUnpaidPrincipalBalanceUnsecuritized
Namespace Prefix: | nsm_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Reverse Mortgage Interest, Unpaid Principal Balance, Unsecuritized, Funded Draws Not Yet Securitized + References No definition available. + Details
Name: | nsm_ReverseMortgageInterestUnpaidPrincipalBalanceUnsecuritizedFundedDrawsNotYetSecuritized
Namespace Prefix: | nsm_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Reverse Mortgage Interest, Unpaid Principal Balance, Unsecuritized, Home Equity Conversion Mortgage Receivables + References No definition available. + Details
Name: | nsm_ReverseMortgageInterestUnpaidPrincipalBalanceUnsecuritizedHomeEquityConversionMortgageReceivables
Namespace Prefix: | nsm_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Reverse Mortgage Interest, Unpaid Principal Balance, Unsecuritized, Real Estate Owned Related Receivables + References No definition available. + Details
Name: | nsm_ReverseMortgageInterestUnpaidPrincipalBalanceUnsecuritizedRealEstateOwnedRelatedReceivables
Namespace Prefix: | nsm_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Reverse Mortgage Interest, Unpaid Principal Balance, Unsecuritized, Repurchase of Home Equity Conversion Mortgages + References No definition available. + Details
Name: | nsm_ReverseMortgageInterestUnpaidPrincipalBalanceUnsecuritizedRepurchaseofHomeEquityConversionMortgages
Namespace Prefix: | nsm_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant