XML 157 R97.htm IDEA: XBRL DOCUMENT
v3.19.3.a.u2

Derivative Financial Instruments - Outstanding Balances (Details) - USD ($) $ in Millions | 5 Months Ended | 7 Months Ended | 12 Months Ended
--- | --- | --- | ---
Dec. 31, 2018 | Jul. 31, 2018 | Dec. 31, 2019
Derivatives, Fair Value [Line Items] |  |  |
Derivative asset, fair value | $ 49.0 |  | $ 153.0
Derivative instrument, fair value (less than) | 0.1 |  | 0.1
Assets |  |  |
Derivatives, Fair Value [Line Items] |  |  |
Derivative asset, notional amount | 2,020.0 |  | 9,058.0
Derivative asset, fair value | 49.4 |  | 153.4
Recorded gains / (losses) | (14.9) | $ (0.2) | 90.1
Liabilities |  |  |
Derivatives, Fair Value [Line Items] |  |  |
Derivative liability, notional amount | 2,735.0 |  | 6,595.0
Derivative liability, fair value | 19.7 |  | 14.9
Recorded gains / (losses) | 17.1 | (2.2) | (9.5)
Loan sale commitments | Assets |  |  |
Derivatives, Fair Value [Line Items] |  |  |
Derivative asset, notional amount | 319.0 |  | 1,202.0
Derivative asset, fair value | 13.5 |  | 32.3
Recorded gains / (losses) | 2.8 | 10.5 | 6.5
IRLCs | Assets |  |  |
Derivatives, Fair Value [Line Items] |  |  |
Derivative asset, notional amount | 1,301.0 |  | 4,838.0
Derivative asset, fair value | 47.6 |  | 134.7
Recorded gains / (losses) | (12.1) | 0.4 | 75.0
IRLCs | Liabilities |  |  |
Derivatives, Fair Value [Line Items] |  |  |
Derivative liability, notional amount | 0.0 |  | 12.0
Derivative liability, fair value | 0.0 |  | 0.0
Recorded gains / (losses) | 0.0 | 0.0 | 0.0
LPCs | Assets |  |  |
Derivatives, Fair Value [Line Items] |  |  |
Derivative asset, notional amount | 215.0 |  | 1,094.0
Derivative asset, fair value | 1.7 |  | 12.2
Recorded gains / (losses) | 0.4 | 0.3 | 10.5
LPCs | Liabilities |  |  |
Derivatives, Fair Value [Line Items] |  |  |
Derivative liability, notional amount | 90.0 |  | 540.0
Derivative liability, fair value | 0.4 |  | 2.6
Recorded gains / (losses) | (0.2) | 0.1 | 2.1
Forward sales of MBS | Assets |  |  |
Derivatives, Fair Value [Line Items] |  |  |
Derivative asset, notional amount | 485.0 |  | 3,120.0
Derivative asset, fair value | 0.1 |  | 6.5
Recorded gains / (losses) | (3.1) | 0.9 | 4.6
Forward sales of MBS | Liabilities |  |  |
Derivatives, Fair Value [Line Items] |  |  |
Derivative liability, notional amount | 2,639.0 |  | 6,036.0
Derivative liability, fair value | 19.3 |  | 12.3
Recorded gains / (losses) | 17.4 | (1.0) | (11.6)
Treasury futures | Assets |  |  |
Derivatives, Fair Value [Line Items] |  |  |
Derivative asset, notional amount | 0.0 |  |
Derivative asset, fair value | 0.0 |  |
Recorded gains / (losses) | (0.1) | (1.8) |
Treasury futures | Liabilities |  |  |
Derivatives, Fair Value [Line Items] |  |  |
Derivative liability, notional amount | 0.0 |  |
Derivative liability, fair value | 0.0 |  |
Recorded gains / (losses) | (0.1) | (1.3) |
Eurodollar futures | Assets |  |  |
Derivatives, Fair Value [Line Items] |  |  |
Derivative asset, notional amount | 19.0 |  | 6.0
Derivative asset, fair value | 0.0 |  | 0.0
Recorded gains / (losses) | 0.0 | 0.0 | 0.0
Eurodollar futures | Liabilities |  |  |
Derivatives, Fair Value [Line Items] |  |  |
Derivative liability, notional amount | 6.0 |  | 7.0
Derivative liability, fair value | 0.0 |  | 0.0
Recorded gains / (losses) | $ 0.0 | $ 0.0 | $ 0.0

X
- Definition Nominal or face amount used to calculate payments on the derivative asset. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 1A -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=109980867&loc=SL5579245-113959 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 1B -URI http://asc.fasb.org/extlink&oid=109980867&loc=SL5580258-113959 Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 1A -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=109980867&loc=SL5579245-113959 + Details
Name: | us-gaap_DerivativeAssetNotionalAmount
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | na
Period Type: | instant

X
- Definition Fair value, before effects of master netting arrangements, of a financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes assets elected not to be offset. Excludes assets not subject to a master netting arrangement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 55 -Paragraph 7 -URI http://asc.fasb.org/extlink&oid=99393222&loc=SL20226000-175313 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 860 -SubTopic 20 -Section 50 -Paragraph 4D -Subparagraph (c)(2) -URI http://asc.fasb.org/extlink&oid=118948506&loc=SL51823488-111719 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 50 -Paragraph 3 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=51824906&loc=SL20225862-175312 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4B -Subparagraph (a),(c) -URI http://asc.fasb.org/extlink&oid=109980867&loc=SL5624163-113959 + Details
Name: | us-gaap_DerivativeFairValueOfDerivativeAsset
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Fair value, before effects of master netting arrangements, of a financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes liabilities elected not to be offset. Excludes liabilities not subject to a master netting arrangement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 860 -SubTopic 20 -Section 50 -Paragraph 4D -Subparagraph (c)(2) -URI http://asc.fasb.org/extlink&oid=118948506&loc=SL51823488-111719 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4B -Subparagraph (a),(c) -URI http://asc.fasb.org/extlink&oid=109980867&loc=SL5624163-113959 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 50 -Paragraph 3 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=51824906&loc=SL20225862-175312 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 55 -Paragraph 7 -URI http://asc.fasb.org/extlink&oid=99393222&loc=SL20226000-175313 + Details
Name: | us-gaap_DerivativeFairValueOfDerivativeLiability
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount of increase (decrease) in the fair value of derivatives recognized in the income statement. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4A -Subparagraph (b)(1) -URI http://asc.fasb.org/extlink&oid=109980867&loc=SL5618551-113959 + Details
Name: | us-gaap_DerivativeGainLossOnDerivativeNet
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Aggregate net fair value of all derivative instruments designated as hedging instruments. Includes instruments designated as cash flow hedges, fair value hedges, and hedges of net investments in foreign operations. + References No definition available. + Details
Name: | us-gaap_DerivativeInstrumentsInHedgesAtFairValueNet
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Nominal or face amount used to calculate payments on the derivative liability. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 1A -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=109980867&loc=SL5579245-113959 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 1B -URI http://asc.fasb.org/extlink&oid=109980867&loc=SL5580258-113959 Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 1A -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=109980867&loc=SL5579245-113959 + Details
Name: | us-gaap_DerivativeLiabilityNotionalAmount
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | na
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_DerivativesFairValueLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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

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

X
- Details
Name: | us-gaap_DerivativeInstrumentRiskAxis=nsm_LoanSaleCommitmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DerivativeInstrumentRiskAxis=us-gaap_InterestRateLockCommitmentsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DerivativeInstrumentRiskAxis=us-gaap_LoanPurchaseCommitmentsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DerivativeInstrumentRiskAxis=us-gaap_ForwardContractsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DerivativeInstrumentRiskAxis=us-gaap_FutureMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DerivativeInstrumentRiskAxis=us-gaap_EurodollarFutureMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |