Business and Basis of Presentation (Policies)	6 Months Ended
Business and Basis of Presentation (Policies)	Jun. 30, 2015
Accounting Policies [Abstract]
Interim Financial Reporting	Interim Financial Reporting The accompanying unaudited interim consolidated financial statements have been prepared in accordance with GAAP for interim financial information and with the instructions to Form 10-Q and Article 10 of Regulation S-X. Accordingly, they do not include all of the information and related notes required by GAAP for complete consolidated financial statements. In the opinion of management, all adjustments, consisting of normal recurring accruals, considered necessary for a fair presentation have been included. Operating results for the six months ended June 30, 2015 are not necessarily indicative of the results that may be expected for the year ending December 31, 2015. These unaudited interim consolidated financial statements should be read in conjunction with the Company’s audited consolidated financial statements and related notes included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2014.
Use of Estimates	Use of Estimates The preparation of consolidated financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities, disclosures of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenue and expenses during the reporting period. The Company’s material estimates and assumptions primarily arise from risks and uncertainties associated with interest rate volatility, prepayment volatility, credit exposure, and borrower mortality rates and include, but are not limited to, the valuation of residential loans, servicing rights, goodwill, derivatives, mortgage-backed debt, and HMBS related obligations and also the allowance for uncollectible advances and contingencies. Although management is not currently aware of any factors that would significantly change its estimates and assumptions, actual results may differ from these estimates.
Changes in Presentation	Changes in Presentation Certain prior year amounts have been reclassified to conform to current year presentation. During the first quarter of 2015, the Company reorganized its reportable segments, changed the composition of indirect costs and depreciation and amortization allocated to the business segments, and established an intersegment charge between the Servicing and Originations segments for certain loan originations associated with the Company's mortgage loan servicing portfolio. Refer to Note 18 for additional information.
Recent Accounting Guidance	Recent Accounting Guidance In January 2014, the FASB issued an accounting standards update that clarifies the definition of an in-substance repossession and foreclosure, and requires additional disclosures related to these items. This amendment reduces diversity in practice by clarifying when an in-substance repossession or foreclosure occurs, that is, when a creditor should be considered to have received physical possession of residential real estate property collateralizing a consumer mortgage loan such that the loan receivable should be derecognized and the real estate property recognized. The required disclosures under these new amendments require interim and annual disclosures of both (i) the amount of foreclosed residential real estate property held by the creditor and (ii) the recorded investment in consumer mortgage loans collateralized by residential real estate property that are in the process of foreclosure. These additional disclosures are included in Note 5. In April 2014, the FASB issued an accounting standards update which changes the criteria for reporting discontinued operations. Under the new guidance, a discontinued operation is defined as a disposal of a component or group of components that is disposed of, or is classified as held for sale, and represents a strategic shift that has (or will have) a major effect on an entity’s operations and financial results. Major strategic shifts include disposals of a significant geographic area or line of business. The new standard allows an entity to have significant continuing involvement and cash flows with the discontinued operation. The standard requires expanded disclosures for discontinued operations and new disclosures for individually material disposal transactions that do not meet the definition of a discontinued operation. The amendments in this standard were effective for the Company beginning January 1, 2015. The adoption of this standard did not have an impact on the Company’s consolidated financial statements. In May 2014, the FASB issued guidance that supersedes most revenue recognition requirements regarding contracts with customers to transfer goods or services or for the transfer of nonfinancial assets. The guidance also supersedes most industry specific guidance but does exclude insurance contracts and financial instruments. Under the new guidance, entities are required to recognize revenue in order to depict the transfer of promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. The guidance provides a five-step analysis to be performed on transactions to determine when and how revenue is recognized. In April 2015, the FASB voted for a one-year deferral of the effective date of the new revenue recognition standard, resulting in this new guidance being effective for annual reporting periods, and interim periods within those annual periods, beginning after December 15, 2017. Entities have the option of using either a full retrospective application or a modified retrospective application to adopt the guidance. Early adoption is not permitted. The Company is currently evaluating the effect the guidance will have on its consolidated financial statements, including the method it will choose for adoption. In June 2014, the FASB issued an accounting standards update on transfers and servicing, effective prospectively for fiscal years beginning after December 15, 2014 and interim periods within those years. The new guidance requires that repurchase financing arrangements be accounted for as secured borrowings and provides for enhanced disclosures, including the nature of collateral pledged and the time to maturity. Certain interim period disclosures for repurchase agreements are effective for interim periods beginning after March 15, 2015. The adoption of the guidance addressing the accounting for repurchase financing arrangements, which was effective beginning January 1, 2015, did not have an impact on the Company’s consolidated financial statements as the Company already records repurchase agreements as secured borrowings. The new disclosure requirements are included in Note 13. In August 2014, the FASB issued an accounting standards update regarding an alternative approach on measuring the financial assets and financial liabilities of a consolidated CFE (referred to as the measurement alternative). The accounting standard update provides an entity with an election to measure the financial assets and financial liabilities of a consolidated CFE to be measured on the basis of either the fair value of the CFE’s financial assets or financial liabilities, whichever is more observable. The new guidance is effective for annual reporting periods, and interim periods within those annual periods, beginning after December 15, 2015 with early adoption permitted. The adoption of this standard is not expected to have a significant impact on the Company's consolidated financial statements. In August 2014, the FASB issued an accounting standards update on the classification of certain foreclosed mortgage loans held by creditors that are either fully or partially guaranteed under government programs. The amendments are intended to clarify when a creditor should be considered to have received physical possession of residential real estate property collateralizing a consumer mortgage loan such that the loan should be derecognized and the real estate recognized. The amendment requires that a mortgage loan be derecognized and that a separate other receivable be recognized upon foreclosure if the following conditions are met, (i) the loan has a government guarantee that is not separable from the loan before foreclosure; (ii) at the time of foreclosure, the creditor has the intent to convey the real estate property to the guarantor and make a claim on the guarantee, and the creditor has the ability to recover under that claim; and (iii) at the time of foreclosure, any amount of the claim that is determined on the basis of the fair value of the real estate is fixed. Upon foreclosure, the separate other receivable should be measured based on the amount of the loan balance (principal and interest) expected to be recovered from the guarantor. The amendments in this standard were effective for the Company beginning January 1, 2015. The adoption of this standard did not have a significant impact on the Company’s consolidated financial statements. In January 2015, the FASB issued an accounting standards update eliminating the concept of extraordinary items. This amendment is intended to reduce complexity in accounting standards. Extraordinary items are events and transactions that are distinguished by their unusual nature and by the infrequency of their occurrence. Eliminating the extraordinary classification simplifies income statement presentation by altogether removing the concept of extraordinary items from consideration. The new guidance is effective for annual reporting periods, and interim periods within those annual periods, beginning after December 15, 2015 with early adoption permitted. The adoption of this standard is not expected to have a significant impact on the Company's consolidated financial statements. In February 2015, the FASB issued an accounting standards update which requires amendments to both the variable interest entity and voting models. The amendments (i) rescind the indefinite deferral of certain aspects of accounting standards relating to consolidations and provide a permanent scope exception for registered money market funds and similar unregistered money market funds, (ii) modify the identification of variable interests (fees paid to a decision maker or service provider), the VIE characteristics for a limited partnership or similar entity and primary beneficiary determination under the VIE model, and (iii) eliminate the presumption within the current voting model that a general partner controls a limited partnership or similar entity. The new guidance is effective for annual reporting periods, and interim periods within those annual periods, beginning after December 15, 2015 with early adoption permitted. The amendments may be applied using either a modified retrospective or full retrospective approach. The Company elected to early adopt these amendments and therefore the amendments in this standard were effective for the Company beginning April 1, 2015. The adoption of this standard did not result in any additional consolidations of variable interest entities. In April 2015, the FASB issued an accounting standards update regarding the approach for recognizing debt issuance costs. The amendment now requires entities to recognize debt issuance costs as a direct deduction from the carrying amount of the related debt liability and not recorded as a separate asset. The new guidance is effective for annual reporting periods, and interim periods within those annual periods, beginning after December 15, 2015 with early adoption permitted. An entity should apply the new guidance on a retrospective basis, wherein the balance sheet of each individual period presented should be adjusted to reflect the period-specific effects of applying the new guidance. The adoption of this standard will not have a significant impact on the Company's consolidated financial statements. In April 2015, the FASB issued an accounting standards update which provides guidance regarding whether a cloud computing arrangement includes a software license. If a cloud computing arrangement includes a software license, then the entity should account for the software license element of the arrangement consistent with the acquisition of other software licenses. If a cloud computing arrangement does not include a software license, the entity should account for the arrangement as a service contract. This guidance is effective for annual reporting periods, and interim periods within those annual periods, beginning after December 15, 2015 with early adoption permitted. The Company is currently evaluating the effect, if any, the guidance will have on its consolidated financial statements.