XML 83 R67.htm IDEA: XBRL DOCUMENT
v3.19.1

Reverse Mortgage Interests, Net - Reserves Roll Forward (Details) - USD ($) $ in Millions | 3 Months Ended
--- | ---
Mar. 31, 2019 | Mar. 31, 2018
Reverse Mortgage Interests Reserves [Roll Forward] |  |
Balance - beginning of period | $ 13 |
Provision | 0 |
Write-offs | 5 |
Balance - end of period | $ 8 |
Predecessor |  |
Reverse Mortgage Interests Reserves [Roll Forward] |  |
Balance - beginning of period |  | $ 115
Provision |  | 26
Write-offs |  | 7
Balance - end of period |  | $ 134

X
- Definition Reverse Funded Loan Advances, Reserves + References No definition available. + Details
Name: | coop_ReverseFundedLoanAdvancesReserves
Namespace Prefix: | coop_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Reverse Mortgage Interests Reserves [Roll Forward] + References No definition available. + Details
Name: | coop_ReverseMortgageInterestsReservesRollForward
Namespace Prefix: | coop_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Reverse Mortgage Reserves, Period Decrease Related to Charge Offs + References No definition available. + Details
Name: | coop_ReverseMortgageReservesPeriodDecreaseRelatedtoChargeOffs
Namespace Prefix: | coop_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Reverse Mortgage Reserves, Period Increase Through Provision for Loan Loss Adjustments + References No definition available. + Details
Name: | coop_ReverseMortgageReservesPeriodIncreaseThroughProvisionforLoanLossAdjustments
Namespace Prefix: | coop_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Details
Name: | us-gaap_StatementScenarioAxis=us-gaap_PredecessorMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |