Regulatory Requirements - Narrative (Details) $ in Millions	12 Months Ended
Dec. 31, 2019 USD ($)
Compliance with Regulatory Capital Requirements for Mortgage Companies [Line Items]
Number of days from fiscal year end that servicer is obliged to provide audited financial statements	90 days
Capital	$ 341.5
Percentage portfolio of loans serviced or subserviced	2.00%
Fannie Mae
Compliance with Regulatory Capital Requirements for Mortgage Companies [Line Items]
Capital requirement based on outstanding UPB of owned and subserviced portfolio	$ 268.7
California Department of Business Oversight
Compliance with Regulatory Capital Requirements for Mortgage Companies [Line Items]
Amount of debt forgiveness for borrowers	$ 198.0

The amount of total capital as defined in the regulations.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 948
-SubTopic 10
-Section 50
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=6490092&loc=d3e47304-110998

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 505
-Section 50
-Paragraph 1H
-Subparagraph (c)(1)
-URI http://asc.fasb.org/extlink&oid=117337116&loc=d3e65071-112826

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 948
-SubTopic 10
-Section 50
-Paragraph 3
-Subparagraph (c)(1)
-URI http://asc.fasb.org/extlink&oid=6490092&loc=d3e47080-110998

Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 505
-Section 50
-Paragraph 1H
-Subparagraph (c)(2)
-URI http://asc.fasb.org/extlink&oid=117337116&loc=d3e65071-112826

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