FAIR VALUE MEASUREMENTS - Information Regarding Inputs used in Valuing Excess MSRs Owned Directly and through Equity Method Investees (Details)	6 Months Ended
	Jun. 30, 2022 $ / Loan
Prepayment Rate | Excess MSRs | Minimum
Directly Held
Servicing asset, measurement input	0.021
Prepayment Rate | Excess MSRs | Maximum
Directly Held
Servicing asset, measurement input	0.091
Prepayment Rate | Excess MSRs | Weighted Average
Directly Held
Servicing asset, measurement input	0.048
Prepayment Rate | MSRs and MSR Financing Receivables | Minimum
Directly Held
Servicing asset, measurement input	0.005
Prepayment Rate | MSRs and MSR Financing Receivables | Maximum
Directly Held
Servicing asset, measurement input	0.833
Prepayment Rate | MSRs and MSR Financing Receivables | Weighted Average
Directly Held
Servicing asset, measurement input	0.079
Prepayment Rate | Agency | MSRs and MSR Financing Receivables | Minimum
Directly Held
Servicing asset, measurement input	0.005
Prepayment Rate | Agency | MSRs and MSR Financing Receivables | Maximum
Directly Held
Servicing asset, measurement input	0.832
Prepayment Rate | Agency | MSRs and MSR Financing Receivables | Weighted Average
Directly Held
Servicing asset, measurement input	0.074
Prepayment Rate | Non-Agency | MSRs and MSR Financing Receivables | Minimum
Directly Held
Servicing asset, measurement input	0.018
Prepayment Rate | Non-Agency | MSRs and MSR Financing Receivables | Maximum
Directly Held
Servicing asset, measurement input	0.833
Prepayment Rate | Non-Agency | MSRs and MSR Financing Receivables | Weighted Average
Directly Held
Servicing asset, measurement input	0.078
Prepayment Rate | Ginnie Mae | MSRs and MSR Financing Receivables | Minimum
Directly Held
Servicing asset, measurement input	0.042
Prepayment Rate | Ginnie Mae | MSRs and MSR Financing Receivables | Maximum
Directly Held
Servicing asset, measurement input	0.823
Prepayment Rate | Ginnie Mae | MSRs and MSR Financing Receivables | Weighted Average
Directly Held
Servicing asset, measurement input	0.096
Prepayment Rate | Directly Held | Excess MSRs | Minimum
Directly Held
Servicing asset, measurement input	0.021
Prepayment Rate | Directly Held | Excess MSRs | Maximum
Directly Held
Servicing asset, measurement input	0.091
Prepayment Rate | Directly Held | Excess MSRs | Weighted Average
Directly Held
Servicing asset, measurement input	0.047
Prepayment Rate | Directly Held | Agency | Original Pools | Minimum
Directly Held
Servicing asset, measurement input	0.033
Prepayment Rate | Directly Held | Agency | Original Pools | Maximum
Directly Held
Servicing asset, measurement input	0.060
Prepayment Rate | Directly Held | Agency | Original Pools | Weighted Average
Directly Held
Servicing asset, measurement input	0.047
Prepayment Rate | Directly Held | Agency | Recaptured Pools | Minimum
Directly Held
Servicing asset, measurement input	0.033
Prepayment Rate | Directly Held | Agency | Recaptured Pools | Maximum
Directly Held
Servicing asset, measurement input	0.054
Prepayment Rate | Directly Held | Agency | Recaptured Pools | Weighted Average
Directly Held
Servicing asset, measurement input	0.043
Prepayment Rate | Directly Held | Agency | Excess MSRs | Minimum
Directly Held
Servicing asset, measurement input	0.033
Prepayment Rate | Directly Held | Agency | Excess MSRs | Maximum
Directly Held
Servicing asset, measurement input	0.060
Prepayment Rate | Directly Held | Agency | Excess MSRs | Weighted Average
Directly Held
Servicing asset, measurement input	0.045
Prepayment Rate | Directly Held | Non-Agency | Original Pools | Minimum
Directly Held
Servicing asset, measurement input	0.031
Prepayment Rate | Directly Held | Non-Agency | Original Pools | Maximum
Directly Held
Servicing asset, measurement input	0.091
Prepayment Rate | Directly Held | Non-Agency | Original Pools | Weighted Average
Directly Held
Servicing asset, measurement input	0.057
Prepayment Rate | Directly Held | Non-Agency | Recaptured Pools | Minimum
Directly Held
Servicing asset, measurement input	0.021
Prepayment Rate | Directly Held | Non-Agency | Recaptured Pools | Maximum
Directly Held
Servicing asset, measurement input	0.031
Prepayment Rate | Directly Held | Non-Agency | Recaptured Pools | Weighted Average
Directly Held
Servicing asset, measurement input	0.025
Prepayment Rate | Directly Held | Non-Agency | Excess MSRs | Minimum
Directly Held
Servicing asset, measurement input	0.021
Prepayment Rate | Directly Held | Non-Agency | Excess MSRs | Maximum
Directly Held
Servicing asset, measurement input	0.091
Prepayment Rate | Directly Held | Non-Agency | Excess MSRs | Weighted Average
Directly Held
Servicing asset, measurement input	0.050
Prepayment Rate | Held through Equity Method Investees | Excess MSRs | Minimum
Directly Held
Servicing asset, measurement input	0.045
Prepayment Rate | Held through Equity Method Investees | Excess MSRs | Maximum
Directly Held
Servicing asset, measurement input	0.059
Prepayment Rate | Held through Equity Method Investees | Excess MSRs | Weighted Average
Directly Held
Servicing asset, measurement input	0.049
Prepayment Rate | Held through Equity Method Investees | Agency | Original Pools | Minimum
Directly Held
Servicing asset, measurement input	0.047
Prepayment Rate | Held through Equity Method Investees | Agency | Original Pools | Maximum
Directly Held
Servicing asset, measurement input	0.059
Prepayment Rate | Held through Equity Method Investees | Agency | Original Pools | Weighted Average
Directly Held
Servicing asset, measurement input	0.053
Prepayment Rate | Held through Equity Method Investees | Agency | Recaptured Pools | Minimum
Directly Held
Servicing asset, measurement input	0.045
Prepayment Rate | Held through Equity Method Investees | Agency | Recaptured Pools | Maximum
Directly Held
Servicing asset, measurement input	0.049
Prepayment Rate | Held through Equity Method Investees | Agency | Recaptured Pools | Weighted Average
Directly Held
Servicing asset, measurement input	0.046
Delinquency | Excess MSRs | Minimum
Directly Held
Servicing asset, measurement input	0.001
Delinquency | Excess MSRs | Maximum
Directly Held
Servicing asset, measurement input	0.086
Delinquency | Excess MSRs | Weighted Average
Directly Held
Servicing asset, measurement input	0.020
Delinquency | MSRs and MSR Financing Receivables | Minimum
Directly Held
Servicing asset, measurement input	0.001
Delinquency | MSRs and MSR Financing Receivables | Maximum
Directly Held
Servicing asset, measurement input	0.750
Delinquency | MSRs and MSR Financing Receivables | Weighted Average
Directly Held
Servicing asset, measurement input	0.038
Delinquency | Agency | MSRs and MSR Financing Receivables | Minimum
Directly Held
Servicing asset, measurement input	0.001
Delinquency | Agency | MSRs and MSR Financing Receivables | Maximum
Directly Held
Servicing asset, measurement input	0.750
Delinquency | Agency | MSRs and MSR Financing Receivables | Weighted Average
Directly Held
Servicing asset, measurement input	0.015
Delinquency | Non-Agency | MSRs and MSR Financing Receivables | Minimum
Directly Held
Servicing asset, measurement input	0.004
Delinquency | Non-Agency | MSRs and MSR Financing Receivables | Maximum
Directly Held
Servicing asset, measurement input	0.667
Delinquency | Non-Agency | MSRs and MSR Financing Receivables | Weighted Average
Directly Held
Servicing asset, measurement input	0.121
Delinquency | Ginnie Mae | MSRs and MSR Financing Receivables | Minimum
Directly Held
Servicing asset, measurement input	0.001
Delinquency | Ginnie Mae | MSRs and MSR Financing Receivables | Maximum
Directly Held
Servicing asset, measurement input	0.750
Delinquency | Ginnie Mae | MSRs and MSR Financing Receivables | Weighted Average
Directly Held
Servicing asset, measurement input	0.072
Delinquency | Directly Held | Excess MSRs | Minimum
Directly Held
Servicing asset, measurement input	0.001
Delinquency | Directly Held | Excess MSRs | Maximum
Directly Held
Servicing asset, measurement input	0.086
Delinquency | Directly Held | Excess MSRs | Weighted Average
Directly Held
Servicing asset, measurement input	0.027
Delinquency | Directly Held | Agency | Original Pools | Minimum
Directly Held
Servicing asset, measurement input	0.001
Delinquency | Directly Held | Agency | Original Pools | Maximum
Directly Held
Servicing asset, measurement input	0.061
Delinquency | Directly Held | Agency | Original Pools | Weighted Average
Directly Held
Servicing asset, measurement input	0.007
Delinquency | Directly Held | Agency | Recaptured Pools | Minimum
Directly Held
Servicing asset, measurement input	0.001
Delinquency | Directly Held | Agency | Recaptured Pools | Maximum
Directly Held
Servicing asset, measurement input	0.014
Delinquency | Directly Held | Agency | Recaptured Pools | Weighted Average
Directly Held
Servicing asset, measurement input	0.005
Delinquency | Directly Held | Agency | Excess MSRs | Minimum
Directly Held
Servicing asset, measurement input	0.001
Delinquency | Directly Held | Agency | Excess MSRs | Maximum
Directly Held
Servicing asset, measurement input	0.061
Delinquency | Directly Held | Agency | Excess MSRs | Weighted Average
Directly Held
Servicing asset, measurement input	0.006
Delinquency | Directly Held | Non-Agency | Original Pools | Minimum
Directly Held
Servicing asset, measurement input	0.012
Delinquency | Directly Held | Non-Agency | Original Pools | Maximum
Directly Held
Servicing asset, measurement input	0.086
Delinquency | Directly Held | Non-Agency | Original Pools | Weighted Average
Directly Held
Servicing asset, measurement input	0.062
Delinquency | Directly Held | Non-Agency | Recaptured Pools | Minimum
Directly Held
Servicing asset, measurement input	0.001
Delinquency | Directly Held | Non-Agency | Recaptured Pools | Maximum
Directly Held
Servicing asset, measurement input	0.002
Delinquency | Directly Held | Non-Agency | Recaptured Pools | Weighted Average
Directly Held
Servicing asset, measurement input	0.002
Delinquency | Directly Held | Non-Agency | Excess MSRs | Minimum
Directly Held
Servicing asset, measurement input	0.001
Delinquency | Directly Held | Non-Agency | Excess MSRs | Maximum
Directly Held
Servicing asset, measurement input	0.086
Delinquency | Directly Held | Non-Agency | Excess MSRs | Weighted Average
Directly Held
Servicing asset, measurement input	0.062
Delinquency | Held through Equity Method Investees | Excess MSRs | Minimum
Directly Held
Servicing asset, measurement input	0.002
Delinquency | Held through Equity Method Investees | Excess MSRs | Maximum
Directly Held
Servicing asset, measurement input	0.012
Delinquency | Held through Equity Method Investees | Excess MSRs | Weighted Average
Directly Held
Servicing asset, measurement input	0.007
Delinquency | Held through Equity Method Investees | Agency | Original Pools | Minimum
Directly Held
Servicing asset, measurement input	0.005
Delinquency | Held through Equity Method Investees | Agency | Original Pools | Maximum
Directly Held
Servicing asset, measurement input	0.012
Delinquency | Held through Equity Method Investees | Agency | Original Pools | Weighted Average
Directly Held
Servicing asset, measurement input	0.007
Delinquency | Held through Equity Method Investees | Agency | Recaptured Pools | Minimum
Directly Held
Servicing asset, measurement input	0.002
Delinquency | Held through Equity Method Investees | Agency | Recaptured Pools | Maximum
Directly Held
Servicing asset, measurement input	0.012
Delinquency | Held through Equity Method Investees | Agency | Recaptured Pools | Weighted Average
Directly Held
Servicing asset, measurement input	0.007
Recapture Rate | Excess MSRs | Minimum
Directly Held
Servicing asset, measurement input	0
Recapture Rate | Excess MSRs | Maximum
Directly Held
Servicing asset, measurement input	0.098
Recapture Rate | Excess MSRs | Weighted Average
Directly Held
Servicing asset, measurement input	0.021
Recapture Rate | MSRs and MSR Financing Receivables | Minimum
Directly Held
Servicing asset, measurement input	0
Recapture Rate | MSRs and MSR Financing Receivables | Maximum
Directly Held
Servicing asset, measurement input	0.603
Recapture Rate | MSRs and MSR Financing Receivables | Weighted Average
Directly Held
Servicing asset, measurement input	0.100
Recapture Rate | Agency | MSRs and MSR Financing Receivables | Minimum
Directly Held
Servicing asset, measurement input	0
Recapture Rate | Agency | MSRs and MSR Financing Receivables | Maximum
Directly Held
Servicing asset, measurement input	0.603
Recapture Rate | Agency | MSRs and MSR Financing Receivables | Weighted Average
Directly Held
Servicing asset, measurement input	0.058
Recapture Rate | Non-Agency | MSRs and MSR Financing Receivables | Minimum
Directly Held
Servicing asset, measurement input	0.017
Recapture Rate | Non-Agency | MSRs and MSR Financing Receivables | Maximum
Directly Held
Servicing asset, measurement input	0.346
Recapture Rate | Non-Agency | MSRs and MSR Financing Receivables | Weighted Average
Directly Held
Servicing asset, measurement input	0.088
Recapture Rate | Ginnie Mae | MSRs and MSR Financing Receivables | Minimum
Directly Held
Servicing asset, measurement input	0.024
Recapture Rate | Ginnie Mae | MSRs and MSR Financing Receivables | Maximum
Directly Held
Servicing asset, measurement input	0.144
Recapture Rate | Ginnie Mae | MSRs and MSR Financing Receivables | Weighted Average
Directly Held
Servicing asset, measurement input	0.071
Recapture Rate | Directly Held | Excess MSRs | Minimum
Directly Held
Servicing asset, measurement input	0
Recapture Rate | Directly Held | Excess MSRs | Maximum
Directly Held
Servicing asset, measurement input	0.098
Recapture Rate | Directly Held | Excess MSRs | Weighted Average
Directly Held
Servicing asset, measurement input	0.022
Recapture Rate | Directly Held | Agency | Original Pools | Minimum
Directly Held
Servicing asset, measurement input	0.006
Recapture Rate | Directly Held | Agency | Original Pools | Maximum
Directly Held
Servicing asset, measurement input	0.081
Recapture Rate | Directly Held | Agency | Original Pools | Weighted Average
Directly Held
Servicing asset, measurement input	0.021
Recapture Rate | Directly Held | Agency | Recaptured Pools | Minimum
Directly Held
Servicing asset, measurement input	0
Recapture Rate | Directly Held | Agency | Recaptured Pools | Maximum
Directly Held
Servicing asset, measurement input	0.073
Recapture Rate | Directly Held | Agency | Recaptured Pools | Weighted Average
Directly Held
Servicing asset, measurement input	0.014
Recapture Rate | Directly Held | Agency | Excess MSRs | Minimum
Directly Held
Servicing asset, measurement input	0
Recapture Rate | Directly Held | Agency | Excess MSRs | Maximum
Directly Held
Servicing asset, measurement input	0.081
Recapture Rate | Directly Held | Agency | Excess MSRs | Weighted Average
Directly Held
Servicing asset, measurement input	0.018
Recapture Rate | Directly Held | Non-Agency | Original Pools | Minimum
Directly Held
Servicing asset, measurement input	0
Recapture Rate | Directly Held | Non-Agency | Original Pools | Maximum
Directly Held
Servicing asset, measurement input	0.098
Recapture Rate | Directly Held | Non-Agency | Original Pools | Weighted Average
Directly Held
Servicing asset, measurement input	0.032
Recapture Rate | Directly Held | Non-Agency | Recaptured Pools | Minimum
Directly Held
Servicing asset, measurement input	0.006
Recapture Rate | Directly Held | Non-Agency | Recaptured Pools | Maximum
Directly Held
Servicing asset, measurement input	0.050
Recapture Rate | Directly Held | Non-Agency | Recaptured Pools | Weighted Average
Directly Held
Servicing asset, measurement input	0.010
Recapture Rate | Directly Held | Non-Agency | Excess MSRs | Minimum
Directly Held
Servicing asset, measurement input	0
Recapture Rate | Directly Held | Non-Agency | Excess MSRs | Maximum
Directly Held
Servicing asset, measurement input	0.098
Recapture Rate | Directly Held | Non-Agency | Excess MSRs | Weighted Average
Directly Held
Servicing asset, measurement input	0.027
Recapture Rate | Held through Equity Method Investees | Excess MSRs | Minimum
Directly Held
Servicing asset, measurement input	0.007
Recapture Rate | Held through Equity Method Investees | Excess MSRs | Maximum
Directly Held
Servicing asset, measurement input	0.030
Recapture Rate | Held through Equity Method Investees | Excess MSRs | Weighted Average
Directly Held
Servicing asset, measurement input	0.019
Recapture Rate | Held through Equity Method Investees | Agency | Original Pools | Minimum
Directly Held
Servicing asset, measurement input	0.011
Recapture Rate | Held through Equity Method Investees | Agency | Original Pools | Maximum
Directly Held
Servicing asset, measurement input	0.030
Recapture Rate | Held through Equity Method Investees | Agency | Original Pools | Weighted Average
Directly Held
Servicing asset, measurement input	0.023
Recapture Rate | Held through Equity Method Investees | Agency | Recaptured Pools | Minimum
Directly Held
Servicing asset, measurement input	0.007
Recapture Rate | Held through Equity Method Investees | Agency | Recaptured Pools | Maximum
Directly Held
Servicing asset, measurement input	0.025
Recapture Rate | Held through Equity Method Investees | Agency | Recaptured Pools | Weighted Average
Directly Held
Servicing asset, measurement input	0.017
Mortgage Servicing Amount or Excess Mortgage Servicing Amount (bps) | Excess MSRs | Minimum
Directly Held
Servicing asset, measurement input	0.0006
Mortgage Servicing Amount or Excess Mortgage Servicing Amount (bps) | Excess MSRs | Maximum
Directly Held
Servicing asset, measurement input	0.0031
Mortgage Servicing Amount or Excess Mortgage Servicing Amount (bps) | Excess MSRs | Weighted Average
Directly Held
Servicing asset, measurement input	0.0020
Mortgage Servicing Amount or Excess Mortgage Servicing Amount (bps) | MSRs and MSR Financing Receivables | Minimum
Directly Held
Servicing asset, measurement input	0.0001
Mortgage Servicing Amount or Excess Mortgage Servicing Amount (bps) | MSRs and MSR Financing Receivables | Maximum
Directly Held
Servicing asset, measurement input	0.0213
Mortgage Servicing Amount or Excess Mortgage Servicing Amount (bps) | MSRs and MSR Financing Receivables | Weighted Average
Directly Held
Servicing asset, measurement input	0.0033
Mortgage Servicing Amount or Excess Mortgage Servicing Amount (bps) | Agency | MSRs and MSR Financing Receivables | Minimum
Directly Held
Servicing asset, measurement input	0.0001
Mortgage Servicing Amount or Excess Mortgage Servicing Amount (bps) | Agency | MSRs and MSR Financing Receivables | Maximum
Directly Held
Servicing asset, measurement input	0.0100
Mortgage Servicing Amount or Excess Mortgage Servicing Amount (bps) | Agency | MSRs and MSR Financing Receivables | Weighted Average
Directly Held
Servicing asset, measurement input	0.0029
Mortgage Servicing Amount or Excess Mortgage Servicing Amount (bps) | Non-Agency | MSRs and MSR Financing Receivables | Minimum
Directly Held
Servicing asset, measurement input	0.0019
Mortgage Servicing Amount or Excess Mortgage Servicing Amount (bps) | Non-Agency | MSRs and MSR Financing Receivables | Maximum
Directly Held
Servicing asset, measurement input	0.0213
Mortgage Servicing Amount or Excess Mortgage Servicing Amount (bps) | Non-Agency | MSRs and MSR Financing Receivables | Weighted Average
Directly Held
Servicing asset, measurement input	0.0048
Mortgage Servicing Amount or Excess Mortgage Servicing Amount (bps) | Ginnie Mae | MSRs and MSR Financing Receivables | Minimum
Directly Held
Servicing asset, measurement input	0.0018
Mortgage Servicing Amount or Excess Mortgage Servicing Amount (bps) | Ginnie Mae | MSRs and MSR Financing Receivables | Maximum
Directly Held
Servicing asset, measurement input	0.0082
Mortgage Servicing Amount or Excess Mortgage Servicing Amount (bps) | Ginnie Mae | MSRs and MSR Financing Receivables | Weighted Average
Directly Held
Servicing asset, measurement input	0.0040
Mortgage Servicing Amount or Excess Mortgage Servicing Amount (bps) | Directly Held | Excess MSRs | Minimum
Directly Held
Servicing asset, measurement input	0.0006
Mortgage Servicing Amount or Excess Mortgage Servicing Amount (bps) | Directly Held | Excess MSRs | Maximum
Directly Held
Servicing asset, measurement input	0.0031
Mortgage Servicing Amount or Excess Mortgage Servicing Amount (bps) | Directly Held | Excess MSRs | Weighted Average
Directly Held
Servicing asset, measurement input	0.0019
Mortgage Servicing Amount or Excess Mortgage Servicing Amount (bps) | Directly Held | Agency | Original Pools | Minimum
Directly Held
Servicing asset, measurement input	0.0015
Mortgage Servicing Amount or Excess Mortgage Servicing Amount (bps) | Directly Held | Agency | Original Pools | Maximum
Directly Held
Servicing asset, measurement input	0.0031
Mortgage Servicing Amount or Excess Mortgage Servicing Amount (bps) | Directly Held | Agency | Original Pools | Weighted Average
Directly Held
Servicing asset, measurement input	0.0021
Mortgage Servicing Amount or Excess Mortgage Servicing Amount (bps) | Directly Held | Agency | Recaptured Pools | Minimum
Directly Held
Servicing asset, measurement input	0.0020
Mortgage Servicing Amount or Excess Mortgage Servicing Amount (bps) | Directly Held | Agency | Recaptured Pools | Maximum
Directly Held
Servicing asset, measurement input	0.0027
Mortgage Servicing Amount or Excess Mortgage Servicing Amount (bps) | Directly Held | Agency | Recaptured Pools | Weighted Average
Directly Held
Servicing asset, measurement input	0.0023
Mortgage Servicing Amount or Excess Mortgage Servicing Amount (bps) | Directly Held | Agency | Excess MSRs | Minimum
Directly Held
Servicing asset, measurement input	0.0015
Mortgage Servicing Amount or Excess Mortgage Servicing Amount (bps) | Directly Held | Agency | Excess MSRs | Maximum
Directly Held
Servicing asset, measurement input	0.0031
Mortgage Servicing Amount or Excess Mortgage Servicing Amount (bps) | Directly Held | Agency | Excess MSRs | Weighted Average
Directly Held
Servicing asset, measurement input	0.0022
Mortgage Servicing Amount or Excess Mortgage Servicing Amount (bps) | Directly Held | Non-Agency | Original Pools | Minimum
Directly Held
Servicing asset, measurement input	0.0006
Mortgage Servicing Amount or Excess Mortgage Servicing Amount (bps) | Directly Held | Non-Agency | Original Pools | Maximum
Directly Held
Servicing asset, measurement input	0.0025
Mortgage Servicing Amount or Excess Mortgage Servicing Amount (bps) | Directly Held | Non-Agency | Original Pools | Weighted Average
Directly Held
Servicing asset, measurement input	0.0015
Mortgage Servicing Amount or Excess Mortgage Servicing Amount (bps) | Directly Held | Non-Agency | Recaptured Pools | Minimum
Directly Held
Servicing asset, measurement input	0.0022
Mortgage Servicing Amount or Excess Mortgage Servicing Amount (bps) | Directly Held | Non-Agency | Recaptured Pools | Maximum
Directly Held
Servicing asset, measurement input	0.0025
Mortgage Servicing Amount or Excess Mortgage Servicing Amount (bps) | Directly Held | Non-Agency | Recaptured Pools | Weighted Average
Directly Held
Servicing asset, measurement input	0.0023
Mortgage Servicing Amount or Excess Mortgage Servicing Amount (bps) | Directly Held | Non-Agency | Excess MSRs | Minimum
Directly Held
Servicing asset, measurement input	0.0006
Mortgage Servicing Amount or Excess Mortgage Servicing Amount (bps) | Directly Held | Non-Agency | Excess MSRs | Maximum
Directly Held
Servicing asset, measurement input	0.0025
Mortgage Servicing Amount or Excess Mortgage Servicing Amount (bps) | Directly Held | Non-Agency | Excess MSRs | Weighted Average
Directly Held
Servicing asset, measurement input	0.0017
Mortgage Servicing Amount or Excess Mortgage Servicing Amount (bps) | Held through Equity Method Investees | Excess MSRs | Minimum
Directly Held
Servicing asset, measurement input	0.0015
Mortgage Servicing Amount or Excess Mortgage Servicing Amount (bps) | Held through Equity Method Investees | Excess MSRs | Maximum
Directly Held
Servicing asset, measurement input	0.0026
Mortgage Servicing Amount or Excess Mortgage Servicing Amount (bps) | Held through Equity Method Investees | Excess MSRs | Weighted Average
Directly Held
Servicing asset, measurement input	0.0022
Mortgage Servicing Amount or Excess Mortgage Servicing Amount (bps) | Held through Equity Method Investees | Agency | Original Pools | Minimum
Directly Held
Servicing asset, measurement input	0.0015
Mortgage Servicing Amount or Excess Mortgage Servicing Amount (bps) | Held through Equity Method Investees | Agency | Original Pools | Maximum
Directly Held
Servicing asset, measurement input	0.0025
Mortgage Servicing Amount or Excess Mortgage Servicing Amount (bps) | Held through Equity Method Investees | Agency | Original Pools | Weighted Average
Directly Held
Servicing asset, measurement input	0.0019
Mortgage Servicing Amount or Excess Mortgage Servicing Amount (bps) | Held through Equity Method Investees | Agency | Recaptured Pools | Minimum
Directly Held
Servicing asset, measurement input	0.0021
Mortgage Servicing Amount or Excess Mortgage Servicing Amount (bps) | Held through Equity Method Investees | Agency | Recaptured Pools | Maximum
Directly Held
Servicing asset, measurement input	0.0026
Mortgage Servicing Amount or Excess Mortgage Servicing Amount (bps) | Held through Equity Method Investees | Agency | Recaptured Pools | Weighted Average
Directly Held
Servicing asset, measurement input	0.0024
Collateral Weighted Average Maturity (Years) | Excess MSRs | Minimum
Directly Held
Collateral Weighted Average Maturity (Years)	11 years
Collateral Weighted Average Maturity (Years) | Excess MSRs | Maximum
Directly Held
Collateral Weighted Average Maturity (Years)	29 years
Collateral Weighted Average Maturity (Years) | Excess MSRs | Weighted Average
Directly Held
Collateral Weighted Average Maturity (Years)	21 years
Collateral Weighted Average Maturity (Years) | MSRs and MSR Financing Receivables | Minimum
Directly Held
Collateral Weighted Average Maturity (Years)	0 years
Collateral Weighted Average Maturity (Years) | MSRs and MSR Financing Receivables | Maximum
Directly Held
Collateral Weighted Average Maturity (Years)	40 years
Collateral Weighted Average Maturity (Years) | MSRs and MSR Financing Receivables | Weighted Average
Directly Held
Collateral Weighted Average Maturity (Years)	24 years
Collateral Weighted Average Maturity (Years) | Agency | MSRs and MSR Financing Receivables | Minimum
Directly Held
Collateral Weighted Average Maturity (Years)	0 years
Collateral Weighted Average Maturity (Years) | Agency | MSRs and MSR Financing Receivables | Maximum
Directly Held
Collateral Weighted Average Maturity (Years)	40 years
Collateral Weighted Average Maturity (Years) | Agency | MSRs and MSR Financing Receivables | Weighted Average
Directly Held
Collateral Weighted Average Maturity (Years)	23 years
Collateral Weighted Average Maturity (Years) | Non-Agency | MSRs and MSR Financing Receivables | Minimum
Directly Held
Collateral Weighted Average Maturity (Years)	0 years
Collateral Weighted Average Maturity (Years) | Non-Agency | MSRs and MSR Financing Receivables | Maximum
Directly Held
Collateral Weighted Average Maturity (Years)	31 years
Collateral Weighted Average Maturity (Years) | Non-Agency | MSRs and MSR Financing Receivables | Weighted Average
Directly Held
Collateral Weighted Average Maturity (Years)	24 years
Collateral Weighted Average Maturity (Years) | Ginnie Mae | MSRs and MSR Financing Receivables | Minimum
Directly Held
Collateral Weighted Average Maturity (Years)	0 years
Collateral Weighted Average Maturity (Years) | Ginnie Mae | MSRs and MSR Financing Receivables | Maximum
Directly Held
Collateral Weighted Average Maturity (Years)	37 years
Collateral Weighted Average Maturity (Years) | Ginnie Mae | MSRs and MSR Financing Receivables | Weighted Average
Directly Held
Collateral Weighted Average Maturity (Years)	28 years
Collateral Weighted Average Maturity (Years) | Directly Held | Excess MSRs | Minimum
Directly Held
Collateral Weighted Average Maturity (Years)	11 years
Collateral Weighted Average Maturity (Years) | Directly Held | Excess MSRs | Maximum
Directly Held
Collateral Weighted Average Maturity (Years)	29 years
Collateral Weighted Average Maturity (Years) | Directly Held | Excess MSRs | Weighted Average
Directly Held
Collateral Weighted Average Maturity (Years)	21 years
Collateral Weighted Average Maturity (Years) | Directly Held | Agency | Original Pools | Minimum
Directly Held
Collateral Weighted Average Maturity (Years)	11 years
Collateral Weighted Average Maturity (Years) | Directly Held | Agency | Original Pools | Maximum
Directly Held
Collateral Weighted Average Maturity (Years)	20 years
Collateral Weighted Average Maturity (Years) | Directly Held | Agency | Original Pools | Weighted Average
Directly Held
Collateral Weighted Average Maturity (Years)	18 years
Collateral Weighted Average Maturity (Years) | Directly Held | Agency | Recaptured Pools | Minimum
Directly Held
Collateral Weighted Average Maturity (Years)	18 years
Collateral Weighted Average Maturity (Years) | Directly Held | Agency | Recaptured Pools | Maximum
Directly Held
Collateral Weighted Average Maturity (Years)	23 years
Collateral Weighted Average Maturity (Years) | Directly Held | Agency | Recaptured Pools | Weighted Average
Directly Held
Collateral Weighted Average Maturity (Years)	22 years
Collateral Weighted Average Maturity (Years) | Directly Held | Agency | Excess MSRs | Minimum
Directly Held
Collateral Weighted Average Maturity (Years)	11 years
Collateral Weighted Average Maturity (Years) | Directly Held | Agency | Excess MSRs | Maximum
Directly Held
Collateral Weighted Average Maturity (Years)	23 years
Collateral Weighted Average Maturity (Years) | Directly Held | Agency | Excess MSRs | Weighted Average
Directly Held
Collateral Weighted Average Maturity (Years)	20 years
Collateral Weighted Average Maturity (Years) | Directly Held | Non-Agency | Original Pools | Minimum
Directly Held
Collateral Weighted Average Maturity (Years)	17 years
Collateral Weighted Average Maturity (Years) | Directly Held | Non-Agency | Original Pools | Maximum
Directly Held
Collateral Weighted Average Maturity (Years)	29 years
Collateral Weighted Average Maturity (Years) | Directly Held | Non-Agency | Original Pools | Weighted Average
Directly Held
Collateral Weighted Average Maturity (Years)	23 years
Collateral Weighted Average Maturity (Years) | Directly Held | Non-Agency | Recaptured Pools | Minimum
Directly Held
Collateral Weighted Average Maturity (Years)	21 years
Collateral Weighted Average Maturity (Years) | Directly Held | Non-Agency | Recaptured Pools | Maximum
Directly Held
Collateral Weighted Average Maturity (Years)	23 years
Collateral Weighted Average Maturity (Years) | Directly Held | Non-Agency | Recaptured Pools | Weighted Average
Directly Held
Collateral Weighted Average Maturity (Years)	23 years
Collateral Weighted Average Maturity (Years) | Directly Held | Non-Agency | Excess MSRs | Minimum
Directly Held
Collateral Weighted Average Maturity (Years)	17 years
Collateral Weighted Average Maturity (Years) | Directly Held | Non-Agency | Excess MSRs | Maximum
Directly Held
Collateral Weighted Average Maturity (Years)	29 years
Collateral Weighted Average Maturity (Years) | Directly Held | Non-Agency | Excess MSRs | Weighted Average
Directly Held
Collateral Weighted Average Maturity (Years)	23 years
Collateral Weighted Average Maturity (Years) | Held through Equity Method Investees | Excess MSRs | Minimum
Directly Held
Collateral Weighted Average Maturity (Years)	16 years
Collateral Weighted Average Maturity (Years) | Held through Equity Method Investees | Excess MSRs | Maximum
Directly Held
Collateral Weighted Average Maturity (Years)	22 years
Collateral Weighted Average Maturity (Years) | Held through Equity Method Investees | Excess MSRs | Weighted Average
Directly Held
Collateral Weighted Average Maturity (Years)	20 years
Collateral Weighted Average Maturity (Years) | Held through Equity Method Investees | Agency | Original Pools | Minimum
Directly Held
Collateral Weighted Average Maturity (Years)	16 years
Collateral Weighted Average Maturity (Years) | Held through Equity Method Investees | Agency | Original Pools | Maximum
Directly Held
Collateral Weighted Average Maturity (Years)	18 years
Collateral Weighted Average Maturity (Years) | Held through Equity Method Investees | Agency | Original Pools | Weighted Average
Directly Held
Collateral Weighted Average Maturity (Years)	17 years
Collateral Weighted Average Maturity (Years) | Held through Equity Method Investees | Agency | Recaptured Pools | Minimum
Directly Held
Collateral Weighted Average Maturity (Years)	20 years
Collateral Weighted Average Maturity (Years) | Held through Equity Method Investees | Agency | Recaptured Pools | Maximum
Directly Held
Collateral Weighted Average Maturity (Years)	22 years
Collateral Weighted Average Maturity (Years) | Held through Equity Method Investees | Agency | Recaptured Pools | Weighted Average
Directly Held
Collateral Weighted Average Maturity (Years)	21 years
Measurement Input, Servicing Cost | Agency | MSRs and MSR Financing Receivables | Minimum
Directly Held
Servicing asset, measurement input	6.10
Measurement Input, Servicing Cost | Agency | MSRs and MSR Financing Receivables | Maximum
Directly Held
Servicing asset, measurement input	7.00
Measurement Input, Servicing Cost | Agency | MSRs and MSR Financing Receivables | Weighted Average
Directly Held
Servicing asset, measurement input	6.70
Measurement Input, Servicing Cost | Non-Agency | MSRs and MSR Financing Receivables | Minimum
Directly Held
Servicing asset, measurement input	7.30
Measurement Input, Servicing Cost | Non-Agency | MSRs and MSR Financing Receivables | Maximum
Directly Held
Servicing asset, measurement input	15.10
Measurement Input, Servicing Cost | Non-Agency | MSRs and MSR Financing Receivables | Weighted Average
Directly Held
Servicing asset, measurement input	10.10
Measurement Input, Servicing Cost | Ginnie Mae | MSRs and MSR Financing Receivables | Minimum
Directly Held
Servicing asset, measurement input	8.20
Measurement Input, Servicing Cost | Ginnie Mae | MSRs and MSR Financing Receivables | Maximum
Directly Held
Servicing asset, measurement input	8.30
Measurement Input, Servicing Cost | Ginnie Mae | MSRs and MSR Financing Receivables | Weighted Average
Directly Held
Servicing asset, measurement input	8.30