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Segment Information - Key Servicing Metrics (Details) - Agency Business - MSRs - USD ($) $ in Thousands	6 Months Ended	12 Months Ended
	Jun. 30, 2023	Dec. 31, 2022
Segment Information
Servicing Portfolio UPB	$ 29,446,551	$ 27,998,029
Weighted average servicing fee rate (basis points)	40.10%	41.10%
Wtd. Avg. Life of Servicing Portfolio (years)	8 years 4 months 24 days	8 years 7 months 6 days
SFR - Fixed Rate
Segment Information
Servicing Portfolio UPB	$ 290,266	$ 274,764
Weighted average servicing fee rate (basis points)	20.00%	19.80%
Wtd. Avg. Life of Servicing Portfolio (years)	5 years 10 months 24 days	6 years
Fannie Mae
Segment Information
Servicing Portfolio UPB	$ 20,002,570	$ 19,038,124
Weighted average servicing fee rate (basis points)	48.90%	50.20%
Wtd. Avg. Life of Servicing Portfolio (years)	7 years 8 months 12 days	8 years
Freddie Mac
Segment Information
Servicing Portfolio UPB	$ 5,245,325	$ 5,153,207
Weighted average servicing fee rate (basis points)	24.80%	25.00%
Wtd. Avg. Life of Servicing Portfolio (years)	8 years 9 months 18 days	9 years
Private Label
Segment Information
Servicing Portfolio UPB	$ 2,305,000	$ 2,074,859
Weighted average servicing fee rate (basis points)	19.30%	18.50%
Wtd. Avg. Life of Servicing Portfolio (years)	7 years 6 months	7 years 7 months 6 days
FHA
Segment Information
Servicing Portfolio UPB	$ 1,303,812	$ 1,155,893
Weighted average servicing fee rate (basis points)	14.50%	14.90%
Wtd. Avg. Life of Servicing Portfolio (years)	20 years	19 years 6 months
Bridge loan
Segment Information
Servicing Portfolio UPB	$ 299,578	$ 301,182
Weighted average servicing fee rate (basis points)	11.10%	12.50%
Wtd. Avg. Life of Servicing Portfolio (years)	3 years 6 months	1 year 8 months 12 days

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