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Mortgage Servicing - Schedule of Activity Related to MSRs - Fair Value Measurement Method (Footnote) (Details) - USD ($) $ in Thousands		3 Months Ended		9 Months Ended
	Feb. 20, 2020	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Servicing Assets at Fair Value [Line Items]
Servicing transfers and adjustments		$ 4,706	$ (16)	$ 6,840	$ 263,427
Reclassification to changes in valuation inputs or assumptions			$ 9,100		$ 4,000
New Residential Investment Corp
Servicing Assets at Fair Value [Line Items]
Servicing transfers and adjustments	$ 263,700

X

- Definition

Servicing Asset at Fair Value, Reclassification To Changes in Valuation Inputs or Assumptions

+ References

No definition available.

+ Details

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Balance Type:	debit
Period Type:	duration

X

- Definition

Amount of increase (decrease) in fair value from changes classified as other for a contract to service financial assets under which the benefits of servicing are expected to more than adequately compensate the servicer.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 860
-SubTopic 50
-Section 50
-Paragraph 3
-Subparagraph (a)(5)
-URI http://asc.fasb.org/extlink&oid=116651436&loc=d3e122625-111746

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- 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

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- Details

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