Noncontrolling Interest, Common Units by Noncontrolling Owners

No definition available.

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- Definition

Amount of currency on hand, demand deposits with banks or financial institutions, and other kinds of accounts that have the general characteristics of demand deposits, held by a disposal group.

+ References

No definition available.

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Amount before tax of gain (loss) recognized on the sale or disposal of a disposal group. Excludes discontinued operations.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 360
-SubTopic 10
-Section 45
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=123351718&loc=d3e2443-110228

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=123570139&loc=d3e3602-108585

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 360
-SubTopic 10
-Section 50
-Paragraph 3
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=109226691&loc=d3e2941-110230

+ Details

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Balance Type:	credit
Period Type:	duration

- Definition

The equity interest of noncontrolling shareholders, partners or other equity holders in consolidated entity.

+ References

No definition available.

+ Details

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- Definition

Detail information of subsequent event by type. User is expected to use existing line items from elsewhere in the taxonomy as the primary line items for this disclosure, which is further associated with dimension and member elements pertaining to a subsequent event.

+ References

No definition available.

+ Details

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- Details

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Namespace Prefix:
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- Details

Name:	us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis=coop_TitleBusinessMember
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- Details

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- Details

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- Details

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- Details

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- Details

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- Details

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Subsequent Events - Narrative (Details) - Disposal Group, Disposed of by Sale, Not Discontinued Operations - USD ($) $ in Millions	6 Months Ended	12 Months Ended
	Jun. 30, 2022	Dec. 31, 2021	Feb. 10, 2022	Mar. 12, 2021
Title Business
Subsequent Event [Line Items]
Disposal Group, Including Discontinued Operation, Cash				$ 450.0
Disposal Group, Not Discontinued Operation, Gain (Loss) on Disposal		$ 487.0
Title Business \| Blend Labs, Inc. \| Mr. Cooper Group Inc.
Subsequent Event [Line Items]
Noncontrolling Interest, Ownership Percentage by Noncontrolling Owners				9.90%
Subsequent Event \| Mortgage Servicing Platform
Subsequent Event [Line Items]
Disposal Group, Including Discontinued Operation, Cash			$ 9.9
Disposal Group, Not Discontinued Operation, Gain (Loss) on Disposal	$ 225.0
Subsequent Event \| Mortgage Servicing Platform \| Sagent M&C, LLC \| Mr. Cooper Group Inc. \| Common Class A-1
Subsequent Event [Line Items]
Noncontrolling Interest, Common Units by Noncontrolling Owners			200,760