Goodwill and Intangible Assets - Narrative (Details) - USD ($)	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Goodwill [Line Items]
Goodwill	$ 120,000,000	$ 120,000,000
Impairment of goodwill	0	0
Amortization expense	6,000,000	12,000,000
Impairment of technology and intangible assets	0	0
Servicing
Goodwill [Line Items]
Goodwill	80,000,000	80,000,000
Originations
Goodwill [Line Items]
Goodwill	28,000,000	28,000,000
Xome Segment [Member]
Goodwill [Line Items]
Goodwill	$ 12,000,000	$ 12,000,000