Related Party Transactions - Summary of Assets and Liabilities that Relate to WCO (Details) - USD ($) $ in Thousands	6 Months Ended
Jun. 30, 2017	Dec. 31, 2016
Variable Interest Entity, Not Primary Beneficiary \| Walter Capital Opportunity Corp.
Qualitative and Quantitative Information, Transferor's Continuing Involvement [Line Items]
Size of VIE	$ 24,871	$ 194,556
Size of VIE defined	The size of the VIE is deemed to be WCO's net assets.
Corporate Joint Venture \| Transactions With Walter Capital Opportunity Corp
Qualitative and Quantitative Information, Transferor's Continuing Involvement [Line Items]
Net Assets	$ 13,335	26,422
Corporate Joint Venture \| Transactions With Walter Capital Opportunity Corp \| Servicer And Protective Advances, Net
Qualitative and Quantitative Information, Transferor's Continuing Involvement [Line Items]
Carrying Value of Assets Recorded on the Consolidated Balance Sheets	5,275	6,980
Corporate Joint Venture \| Transactions With Walter Capital Opportunity Corp \| Receivables, Net
Qualitative and Quantitative Information, Transferor's Continuing Involvement [Line Items]
Carrying Value of Assets Recorded on the Consolidated Balance Sheets	107	1,392
Corporate Joint Venture \| Transactions With Walter Capital Opportunity Corp \| Other Assets
Qualitative and Quantitative Information, Transferor's Continuing Involvement [Line Items]
Carrying Value of Assets Recorded on the Consolidated Balance Sheets	7,953	19,403
Corporate Joint Venture \| Transactions With Walter Capital Opportunity Corp \| Payables and Accrued Liabilities
Qualitative and Quantitative Information, Transferor's Continuing Involvement [Line Items]
Carrying Value of Liabilities Recorded on the Consolidated Balance Sheets	$ 0	$ (1,353)

Amount of net assets (liabilities).

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