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Segment Information - Key Servicing Metrics (Details) - Agency Business - MSRs - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2021 | Dec. 31, 2020
Segment Information |  |
UPB of Servicing Portfolio | $ 26,959,389 | $ 24,628,456
Wtd. Avg. Servicing Fee Rate (basis points) | 44.90% | 45.40%
Wtd. Avg. Life of Servicing Portfolio (in years) | 8 years 9 months 18 days | 8 years 10 months 24 days
SFR - Fixed Rate |  |
Segment Information |  |
UPB of Servicing Portfolio | $ 191,698 |
Wtd. Avg. Servicing Fee Rate (basis points) | 20.00% |
Wtd. Avg. Life of Servicing Portfolio (in years) | 6 years 6 months |
Fannie Mae |  |
Segment Information |  |
UPB of Servicing Portfolio | $ 19,127,397 | $ 18,268,268
Wtd. Avg. Servicing Fee Rate (basis points) | 53.50% | 52.30%
Wtd. Avg. Life of Servicing Portfolio (in years) | 8 years | 8 years 2 months 12 days
Freddie Mac |  |
Segment Information |  |
UPB of Servicing Portfolio | $ 4,943,905 | $ 4,881,080
Wtd. Avg. Servicing Fee Rate (basis points) | 27.10% | 27.90%
Wtd. Avg. Life of Servicing Portfolio (in years) | 9 years 3 months 18 days | 9 years 10 months 24 days
Private Label |  |
Segment Information |  |
UPB of Servicing Portfolio | $ 1,711,326 | $ 726,992
Wtd. Avg. Servicing Fee Rate (basis points) | 20.00% | 20.00%
Wtd. Avg. Life of Servicing Portfolio (in years) | 8 years 3 months 18 days | 8 years 8 months 12 days
FHA |  |
Segment Information |  |
UPB of Servicing Portfolio | $ 985,063 | $ 752,116
Wtd. Avg. Servicing Fee Rate (basis points) | 15.40% | 16.30%
Wtd. Avg. Life of Servicing Portfolio (in years) | 21 years | 20 years 3 months 18 days

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