Nature of Business and Basis of Presentation (Policies)	3 Months Ended
Mar. 31, 2021
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Basis of presentation	Basis of Presentation The consolidated interim financial statements of the Company have been prepared in accordance with U.S. generally accepted accounting principles (“GAAP”) for interim financial information and in accordance with the instructions to Form 10-Q and Article 10 of Regulation S-X as promulgated by the Securities and Exchange Commission. Accordingly, the financial statements do not include all of the information and footnotes required by GAAP for complete financial statements and should be read in conjunction with the audited consolidated financial statements and notes thereto included in the Company’s Annual Reports on Form 10-K for the year ended December 31, 2020. The interim condensed consolidated financial statements are unaudited; however, in the opinion of management, all adjustments, consisting of normal recurring items, considered necessary for a fair presentation of the results of the interim periods have been included. Dollar amounts are reported in millions, except per share data and other key metrics, unless otherwise noted.
Basis of consolidation	Basis of ConsolidationThe condensed consolidated financial statements include the accounts of the Company, its wholly-owned subsidiaries, other entities in which the Company has a controlling financial interest and those variable interest entities (“VIE”) where the Company’s wholly-owned subsidiaries are the primary beneficiaries. Assets and liabilities of VIEs and their respective results of operations are consolidated from the date that the Company became the primary beneficiary through the date the Company ceases to be the primary beneficiary. The Company applies the equity method of accounting to investments where it is able to exercise significant influence, but not control, over the policies and procedures of the entity and owns less than 50% of the voting interests. Investments in certain companies over which the Company does not exert significant influence are accounted for as cost method investments. Intercompany balances and transactions on consolidated entities have been eliminated.
Use of estimates	Use of Estimates The preparation of the condensed consolidated financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the amounts reported in the condensed consolidated financial statements and accompanying notes. Actual results could differ from these estimates due to factors such as adverse changes in the economy, changes in interest rates, secondary market pricing for loans held for sale and derivatives, strength of underwriting and servicing practices, changes in prepayment assumptions, declines in home prices or discrete events adversely affecting specific borrowers, uncertainties in the economy from the COVID-19 pandemic, and such differences could be material.
Recent accounting guidance adopted	Recent Accounting Guidance AdoptedAccounting Standards Update 2019-12, Income Taxes (Topic 740) - Simplifying the Accounting for Income Taxes (“ASU 2019-12”) simplifies accounting for income taxes by removing certain exceptions from the general principles in Topic 740 including elimination of the exception to the incremental approach for intraperiod tax allocation when there is a loss from continuing operations and income or a gain from other items such as other comprehensive income. ASU 2019-12 also clarifies and amends certain guidance in Topic 740. ASU 2019-12 is effective for the Company on January 1, 2021. The adoption of the standard did not have a material impact to the Company’s condensed consolidated financial statements.
Fair value measurement	Fair value is a market-based measurement, not an entity-specific measurement, and should be determined based on the assumptions that market participants would use in pricing the asset or liability. As a basis for considering market participant assumptions in fair value measurements, a three-tiered fair value hierarchy has been established based on the level of observable inputs used in the measurement of fair value (e.g., Level 1 representing quoted prices for identical assets or liabilities in an active market; Level 2 representing values using observable inputs other than quoted prices included within Level 1; and Level 3 representing estimated values based on significant unobservable inputs). There have been no significant changes to the valuation techniques and inputs used by the Company in estimating fair values of Level 2 and Level 3 assets and liabilities as disclosed in the Company’s Annual Reports on Form 10-K for the year ended December 31, 2020.
Segment information	In the second quarter of 2020, the Company updated its presentation of segment assets to be aligned with a change in the reporting package provided to the Chief Operating Decision Maker. The presentation change had no impact on the segments' operations. Assets allocated to the Servicing segment include MSRs; advances and other receivables, except for co-issue MSR holdback; Servicing related mortgage loans held for sale; and other assets including property, plant and equipment, lease-related assets, prepaid assets, and goodwill. Assets allocated to Originations segment include co-issue MSR holdback in advances and other receivables; Originations related mortgage loans held for sale; derivative assets; and other assets including property, plant and equipment, lease-related assets, prepaid assets, and goodwill. Assets allocated to the Xome segment include cash and cash equivalents; tax-related assets; receivables; and other assets including property, plant and equipment, lease-related assets, prepaid assets, goodwill, and other intangible assets. All assets that are not specifically identified or allocated to a reporting segment are reported as part of Corporate/Other and include cash and cash equivalents; tax-related assets; and intangibles assets excluding goodwill and assets allocated to Xome. Eliminations are also included in Corporate/Other. Prior year financial information has been adjusted retrospectively to reflect the updated presentation.

Nature of Business and Basis of Presentation (Policies)

3 Months Ended

Mar. 31, 2021

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Basis of Presentation

The consolidated interim financial statements of the Company have been prepared in accordance with U.S. generally accepted accounting principles (“GAAP”) for interim financial information and in accordance with the instructions to Form 10-Q and Article 10 of Regulation S-X as promulgated by the Securities and Exchange Commission. Accordingly, the financial statements do not include all of the information and footnotes required by GAAP for complete financial statements and should be read in conjunction with the audited consolidated financial statements and notes thereto included in the Company’s Annual Reports on Form 10-K for the year ended December 31, 2020.

The interim condensed consolidated financial statements are unaudited; however, in the opinion of management, all adjustments, consisting of normal recurring items, considered necessary for a fair presentation of the results of the interim periods have been included. Dollar amounts are reported in millions, except per share data and other key metrics, unless otherwise noted.

Basis of consolidation

Basis of ConsolidationThe condensed consolidated financial statements include the accounts of the Company, its wholly-owned subsidiaries, other entities in which the Company has a controlling financial interest and those variable interest entities (“VIE”) where the Company’s wholly-owned subsidiaries are the primary beneficiaries. Assets and liabilities of VIEs and their respective results of operations are consolidated from the date that the Company became the primary beneficiary through the date the Company ceases to be the primary beneficiary. The Company applies the equity method of accounting to investments where it is able to exercise significant influence, but not control, over the policies and procedures of the entity and owns less than 50% of the voting interests. Investments in certain companies over which the Company does not exert significant influence are accounted for as cost method investments. Intercompany balances and transactions on consolidated entities have been eliminated.

Use of estimates

Use of Estimates

The preparation of the condensed consolidated financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the amounts reported in the condensed consolidated financial statements and accompanying notes. Actual results could differ from these estimates due to factors such as adverse changes in the economy, changes in interest rates, secondary market pricing for loans held for sale and derivatives, strength of underwriting and servicing practices, changes in prepayment assumptions, declines in home prices or discrete events adversely affecting specific borrowers, uncertainties in the economy from the COVID-19 pandemic, and such differences could be material.

Recent accounting guidance adopted

Recent Accounting Guidance AdoptedAccounting Standards Update 2019-12, Income Taxes (Topic 740) - Simplifying the Accounting for Income Taxes (“ASU 2019-12”) simplifies accounting for income taxes by removing certain exceptions from the general principles in Topic 740 including elimination of the exception to the incremental approach for intraperiod tax allocation when there is a loss from continuing operations and income or a gain from other items such as other comprehensive income. ASU 2019-12 also clarifies and amends certain guidance in Topic 740. ASU 2019-12 is effective for the Company on January 1, 2021. The adoption of the standard did not have a material impact to the Company’s condensed consolidated financial statements.

Fair value measurement

Fair value is a market-based measurement, not an entity-specific measurement, and should be determined based on the assumptions that market participants would use in pricing the asset or liability. As a basis for considering market participant assumptions in fair value measurements, a three-tiered fair value hierarchy has been established based on the level of observable inputs used in the measurement of fair value (e.g., Level 1 representing quoted prices for identical assets or liabilities in an active market; Level 2 representing values using observable inputs other than quoted prices included within Level 1; and Level 3 representing estimated values based on significant unobservable inputs). There have been no significant changes to the valuation techniques and inputs used by the Company in estimating fair values of Level 2 and Level 3 assets and liabilities as disclosed in the Company’s Annual Reports on Form 10-K for the year ended December 31, 2020.

Segment information

In the second quarter of 2020, the Company updated its presentation of segment assets to be aligned with a change in the reporting package provided to the Chief Operating Decision Maker. The presentation change had no impact on the segments' operations. Assets allocated to the Servicing segment include MSRs; advances and other receivables, except for co-issue MSR holdback; Servicing related mortgage loans held for sale; and other assets including property, plant and equipment, lease-related assets, prepaid assets, and goodwill. Assets allocated to Originations segment include co-issue MSR holdback in advances and other receivables; Originations related mortgage loans held for sale; derivative assets; and other assets including property, plant and equipment, lease-related assets, prepaid assets, and goodwill. Assets allocated to the Xome segment include cash and cash equivalents; tax-related assets; receivables; and other assets including property, plant and equipment, lease-related assets, prepaid assets, goodwill, and other intangible assets. All assets that are not specifically identified or allocated to a reporting segment are reported as part of Corporate/Other and include cash and cash equivalents; tax-related assets; and intangibles assets excluding goodwill and assets allocated to Xome. Eliminations are also included in Corporate/Other. Prior year financial information has been adjusted retrospectively to reflect the updated presentation.

- Definition

Disclosure of accounting policy for segment reporting.

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