Transactions with Affiliates	9 Months Ended
Sep. 30, 2018
Related Party Transactions [Abstract]
Transactions with Affiliates	21. Transactions with Affiliates Nationstar entered into arrangements with Fortress Investment Group ("Fortress"), its subsidiaries managed funds, or affiliates for purposes of financing the Company's MSR acquisitions and performing services as a subservicer. Prior to the Merger with Nationstar on July 31, 2018, an affiliate of Fortress held a majority of the outstanding common shares of the Predecessor. Subsequent to the Merger, Fortress is no longer an affiliate of the Company. Refer to Note 3, Acquisitions, for additional information. The following summarizes the Predecessor transactions with affiliates of Fortress prior to the July 31, 2018 Merger. New Residential Investment Corp. ("New Residential") Excess Spread Financing The Predecessor has entered into several agreements with certain entities managed by New Residential, in which New Residential and/or certain funds managed by Fortress own an interest (each a "New Residential Entity"). The Predecessor sold to the related New Residential Entity the right to receive a portion of the excess cash flow generated from certain acquired MSRs after a receipt of a fixed base servicing fee per loan. The Predecessor, as the servicer of the loans, retains all ancillary revenues and the remaining portion of the excess cash flow after payment of the fixed base servicing fee and also provides all advancing functions for the portfolio. The related New Residential Entity does not have prior or ongoing obligations associated with these MSR portfolios. Should the Company refinance any loan in such portfolios, subject to certain limitations, the Company will be required to transfer the new loan or a replacement loan of similar economic characteristics into the portfolios. The new or replacement loan will be governed by the same terms set forth in the agreements described above. The fair value of the outstanding liability related to these agreements was $857 at December 31, 2017. For the one month ended July 31, 2018 and three months ended September 30, 2017, the fees paid to New Residential entity by the Predecessor totaled $17 and $59, respectively. The fees paid to New Residential Entity by the Predecessor totaled $122 and $186 during the seven months ended July 31, 2018 and nine months ended September 30, 2017, respectively, which are recorded as a reduction to servicing fee revenue, net. Mortgage Servicing Rights Financing From December 2013 through June 2014, the Predecessor entered into agreements to sell a contractually specified base fee component of certain MSRs and servicing advances under specified terms to a joint venture capitalized by New Residential and certain unaffiliated third-parties. The Company continues to be the named servicer, and, for accounting purposes, ownership of the mortgage servicing rights continues to reside with the Company. Accordingly, the Company accounts for the MSRs and the related MSRs financing liability on its consolidated balance sheets. The Company will continue to sell future servicing advances to New Residential. The fair value of the outstanding liability related to the sale agreement was $10 at December 31, 2017. The Predecessor did not enter into any additional supplemental agreements with these affiliates in 2018 and 2017. Subservicing and Servicing In January 2017, the Predecessor entered into a subservicing agreement with a subsidiary of New Residential. The boarding of loans related to this subservicing agreement was completed during the fourth quarter of 2017, with the Predecessor boarding a total UPB of $105 billion. The Predecessor earned $6 and $10 of subservicing fees and other subservicing revenues during the one month ended July 31, 2018 and three months ended September 30, 2017, respectively, and $43 and $15 during the seven months ended July 31, 2018 and nine months ended September 30, 2017, respectively. In May 2014, the Predecessor entered into a servicing arrangement with New Residential whereby the Predecessor will service residential mortgage loans acquired by New Residential and/or its various affiliates and trust entities. For the one month ended July 31, 2018 and three months ended September 30, 2017, the Predecessor recognized $1 and $11, respectively, and $3 and $20 during the seven months ended July 31, 2018 and nine months ended September 30, 2017, respectively, related to these service arrangements.

21. Transactions with Affiliates

Nationstar entered into arrangements with Fortress Investment Group ("Fortress"), its subsidiaries managed funds, or affiliates for purposes of financing the Company's MSR acquisitions and performing services as a subservicer. Prior to the Merger with Nationstar on July 31, 2018, an affiliate of Fortress held a majority of the outstanding common shares of the Predecessor. Subsequent to the Merger, Fortress is no longer an affiliate of the Company. Refer to Note 3, Acquisitions, for additional information. The following summarizes the Predecessor transactions with affiliates of Fortress prior to the July 31, 2018 Merger.

New Residential Investment Corp. ("New Residential")

Excess Spread Financing

The Predecessor has entered into several agreements with certain entities managed by New Residential, in which New Residential and/or certain funds managed by Fortress own an interest (each a "New Residential Entity"). The Predecessor sold to the related New Residential Entity the right to receive a portion of the excess cash flow generated from certain acquired MSRs after a receipt of a fixed base servicing fee per loan. The Predecessor, as the servicer of the loans, retains all ancillary revenues and the remaining portion of the excess cash flow after payment of the fixed base servicing fee and also provides all advancing functions for the portfolio. The related New Residential Entity does not have prior or ongoing obligations associated with these MSR portfolios. Should the Company refinance any loan in such portfolios, subject to certain limitations, the Company will be required to transfer the new loan or a replacement loan of similar economic characteristics into the portfolios. The new or replacement loan will be governed by the same terms set forth in the agreements described above.

The fair value of the outstanding liability related to these agreements was $857 at December 31, 2017. For the one month ended July 31, 2018 and three months ended September 30, 2017, the fees paid to New Residential entity by the Predecessor totaled $17 and $59, respectively. The fees paid to New Residential Entity by the Predecessor totaled $122 and $186 during the seven months ended July 31, 2018 and nine months ended September 30, 2017, respectively, which are recorded as a reduction to servicing fee revenue, net.

Mortgage Servicing Rights Financing

From December 2013 through June 2014, the Predecessor entered into agreements to sell a contractually specified base fee component of certain MSRs and servicing advances under specified terms to a joint venture capitalized by New Residential and certain unaffiliated third-parties. The Company continues to be the named servicer, and, for accounting purposes, ownership of the mortgage servicing rights continues to reside with the Company. Accordingly, the Company accounts for the MSRs and the related MSRs financing liability on its consolidated balance sheets. The Company will continue to sell future servicing advances to New Residential.

The fair value of the outstanding liability related to the sale agreement was $10 at December 31, 2017. The Predecessor did not enter into any additional supplemental agreements with these affiliates in 2018 and 2017.

Subservicing and Servicing

In January 2017, the Predecessor entered into a subservicing agreement with a subsidiary of New Residential. The boarding of loans related to this subservicing agreement was completed during the fourth quarter of 2017, with the Predecessor boarding a total UPB of $105 billion. The Predecessor earned $6 and $10 of subservicing fees and other subservicing revenues during the one month ended July 31, 2018 and three months ended September 30, 2017, respectively, and $43 and $15 during the seven months ended July 31, 2018 and nine months ended September 30, 2017, respectively.

In May 2014, the Predecessor entered into a servicing arrangement with New Residential whereby the Predecessor will service residential mortgage loans acquired by New Residential and/or its various affiliates and trust entities. For the one month ended July 31, 2018 and three months ended September 30, 2017, the Predecessor recognized $1 and $11, respectively, and $3 and $20 during the seven months ended July 31, 2018 and nine months ended September 30, 2017, respectively, related to these service arrangements.