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Fair Value of Financial Instruments - Quantitative Information about Significant Unobservable Inputs Used in Valuation of Level 3 Assets and Liabilities Measured at Fair Value (Details) $ in Thousands | 9 Months Ended |
--- | --- | ---
Sep. 30, 2019 USD ($) $ / loan | Dec. 31, 2018 USD ($)
Liabilities |  |
Contingent consideration | $ | $ 25,167 | $ 0
ABS Issued |  |
Liabilities |  |
ABS issued | $ | $ 2,781,001 |
ABS Issued | Prepayment rate (annual CPR) | Minimum |  |
Liabilities |  |
ABS issued, measurement input | 0.08 |
ABS Issued | Prepayment rate (annual CPR) | Maximum |  |
Liabilities |  |
ABS issued, measurement input | 0.40 |
ABS Issued | Prepayment rate (annual CPR) | Weighted Average |  |
Liabilities |  |
ABS issued, measurement input | 0.20 |
ABS Issued | Discount rate | Minimum |  |
Liabilities |  |
ABS issued, measurement input | 0.03 |
ABS Issued | Discount rate | Maximum |  |
Liabilities |  |
ABS issued, measurement input | 0.15 |
ABS Issued | Discount rate | Weighted Average |  |
Liabilities |  |
ABS issued, measurement input | 0.04 |
ABS Issued | Default rate | Minimum |  |
Liabilities |  |
ABS issued, measurement input | 0 |
ABS Issued | Default rate | Maximum |  |
Liabilities |  |
ABS issued, measurement input | 0.07 |
ABS Issued | Default rate | Weighted Average |  |
Liabilities |  |
ABS issued, measurement input | 0.02 |
ABS Issued | Loss severity | Minimum |  |
Liabilities |  |
ABS issued, measurement input | 0.20 |
ABS Issued | Loss severity | Maximum |  |
Liabilities |  |
ABS issued, measurement input | 0.29 |
ABS Issued | Loss severity | Weighted Average |  |
Liabilities |  |
ABS issued, measurement input | 0.21 |
Freddie Mac SLST |  |
Liabilities |  |
ABS issued | $ | $ 1,987,473 |
Freddie Mac SLST | Prepayment rate (annual CPR) | Minimum |  |
Liabilities |  |
ABS issued, measurement input | 0.06 |
Freddie Mac SLST | Prepayment rate (annual CPR) | Maximum |  |
Liabilities |  |
ABS issued, measurement input | 0.06 |
Freddie Mac SLST | Prepayment rate (annual CPR) | Weighted Average |  |
Liabilities |  |
ABS issued, measurement input | 0.06 |
Freddie Mac SLST | Discount rate | Minimum |  |
Liabilities |  |
ABS issued, measurement input | 0.02 |
Freddie Mac SLST | Discount rate | Maximum |  |
Liabilities |  |
ABS issued, measurement input | 0.13 |
Freddie Mac SLST | Discount rate | Weighted Average |  |
Liabilities |  |
ABS issued, measurement input | 0.03 |
Freddie Mac SLST | Default rate | Minimum |  |
Liabilities |  |
ABS issued, measurement input | 0.22 |
Freddie Mac SLST | Default rate | Maximum |  |
Liabilities |  |
ABS issued, measurement input | 0.22 |
Freddie Mac SLST | Default rate | Weighted Average |  |
Liabilities |  |
ABS issued, measurement input | 0.22 |
Freddie Mac SLST | Loss severity | Minimum |  |
Liabilities |  |
ABS issued, measurement input | 0.30 |
Freddie Mac SLST | Loss severity | Maximum |  |
Liabilities |  |
ABS issued, measurement input | 0.30 |
Freddie Mac SLST | Loss severity | Weighted Average |  |
Liabilities |  |
ABS issued, measurement input | 0.30 |
Freddie Mac K-Series |  |
Liabilities |  |
ABS issued | $ | $ 3,577,577 |
Freddie Mac K-Series | Prepayment rate (annual CPR) | Minimum |  |
Liabilities |  |
ABS issued, measurement input | 0 |
Freddie Mac K-Series | Prepayment rate (annual CPR) | Maximum |  |
Liabilities |  |
ABS issued, measurement input | 0 |
Freddie Mac K-Series | Prepayment rate (annual CPR) | Weighted Average |  |
Liabilities |  |
ABS issued, measurement input | 0 |
Freddie Mac K-Series | Discount rate | Minimum |  |
Liabilities |  |
ABS issued, measurement input | 0.02 |
Freddie Mac K-Series | Discount rate | Maximum |  |
Liabilities |  |
ABS issued, measurement input | 0.09 |
Freddie Mac K-Series | Discount rate | Weighted Average |  |
Liabilities |  |
ABS issued, measurement input | 0.02 |
Freddie Mac K-Series | Default rate | Minimum |  |
Liabilities |  |
ABS issued, measurement input | 0.01 |
Freddie Mac K-Series | Default rate | Maximum |  |
Liabilities |  |
ABS issued, measurement input | 0.01 |
Freddie Mac K-Series | Default rate | Weighted Average |  |
Liabilities |  |
ABS issued, measurement input | 0.01 |
Freddie Mac K-Series | Loss severity | Minimum |  |
Liabilities |  |
ABS issued, measurement input | 0.20 |
Freddie Mac K-Series | Loss severity | Maximum |  |
Liabilities |  |
ABS issued, measurement input | 0.20 |
Freddie Mac K-Series | Loss severity | Weighted Average |  |
Liabilities |  |
ABS issued, measurement input | 0.20 |
Loan purchase commitments |  |
Assets |  |
Loan purchase commitments, net | $ | $ 3,042 |
Loan purchase commitments | Prepayment rate (annual CPR) | Minimum |  |
Assets |  |
Residential loan purchase commitments, net | 0.15 |
Loan purchase commitments | Prepayment rate (annual CPR) | Maximum |  |
Assets |  |
Residential loan purchase commitments, net | 0.20 |
Loan purchase commitments | Prepayment rate (annual CPR) | Weighted Average |  |
Assets |  |
Residential loan purchase commitments, net | 0.20 |
Loan purchase commitments | Whole loan spread to TBA price | Minimum |  |
Assets |  |
Residential loan purchase commitments, net | 0.56 |
Loan purchase commitments | Whole loan spread to TBA price | Maximum |  |
Assets |  |
Residential loan purchase commitments, net | 1.56 |
Loan purchase commitments | Whole loan spread to TBA price | Weighted Average |  |
Assets |  |
Residential loan purchase commitments, net | 1.55 |
Loan purchase commitments | Mortgage servicing income | Minimum |  |
Assets |  |
Residential loan purchase commitments, net | 0.0006 |
Loan purchase commitments | Mortgage servicing income | Maximum |  |
Assets |  |
Residential loan purchase commitments, net | 0.0014 |
Loan purchase commitments | Mortgage servicing income | Weighted Average |  |
Assets |  |
Residential loan purchase commitments, net | 0.001 |
Loan purchase commitments | MSR multiple | Minimum |  |
Assets |  |
Residential loan purchase commitments, net | 0.6 |
Loan purchase commitments | MSR multiple | Maximum |  |
Assets |  |
Residential loan purchase commitments, net | 4.6 |
Loan purchase commitments | MSR multiple | Weighted Average |  |
Assets |  |
Residential loan purchase commitments, net | 2.5 |
Loan purchase commitments | Pull-through rate | Minimum |  |
Assets |  |
Residential loan purchase commitments, net | 0.09 |
Loan purchase commitments | Pull-through rate | Maximum |  |
Assets |  |
Residential loan purchase commitments, net | 1 |
Loan purchase commitments | Pull-through rate | Weighted Average |  |
Assets |  |
Residential loan purchase commitments, net | 0.71 |
Loan purchase commitments | Whole loan spread to swap rate - fixed rate | Minimum |  |
Assets |  |
Residential loan purchase commitments, net | 0.0115 |
Loan purchase commitments | Whole loan spread to swap rate - fixed rate | Maximum |  |
Assets |  |
Residential loan purchase commitments, net | 0.0375 |
Loan purchase commitments | Whole loan spread to swap rate - fixed rate | Weighted Average |  |
Assets |  |
Residential loan purchase commitments, net | 0.0257 |
Loan purchase commitments | Whole loan spread to swap rate - hybrid | Minimum |  |
Assets |  |
Residential loan purchase commitments, net | 0.0090 |
Loan purchase commitments | Whole loan spread to swap rate - hybrid | Maximum |  |
Assets |  |
Residential loan purchase commitments, net | 0.0330 |
Loan purchase commitments | Whole loan spread to swap rate - hybrid | Weighted Average |  |
Assets |  |
Residential loan purchase commitments, net | 0.0128 |
Contingent consideration |  |
Liabilities |  |
Contingent consideration | $ | $ 25,167 |
Contingent consideration | Discount rate | Minimum |  |
Liabilities |  |
Contingent consideration, measurement input | 0.23 |
Contingent consideration | Discount rate | Maximum |  |
Liabilities |  |
Contingent consideration, measurement input | 0.23 |
Contingent consideration | Discount rate | Weighted Average |  |
Liabilities |  |
Contingent consideration, measurement input | 0.23 |
Contingent consideration | Probability of outcomes | Minimum |  |
Liabilities |  |
Contingent consideration, measurement input | 0 |
Contingent consideration | Probability of outcomes | Maximum |  |
Liabilities |  |
Contingent consideration, measurement input | 1 |
Contingent consideration | Probability of outcomes | Weighted Average |  |
Liabilities |  |
Contingent consideration, measurement input | 0.90 |
Jumbo fixed-rate loans |  |
Assets |  |
Residential loans, at fair value | $ | $ 2,452,300 |
Jumbo fixed-rate loans | Prepayment rate (annual CPR) | Minimum |  |
Assets |  |
Residential loans, measurement input | 0.20 |
Jumbo fixed-rate loans | Prepayment rate (annual CPR) | Maximum |  |
Assets |  |
Residential loans, measurement input | 0.20 |
Jumbo fixed-rate loans | Prepayment rate (annual CPR) | Weighted Average |  |
Assets |  |
Residential loans, measurement input | 0.20 |
Jumbo fixed-rate loans | Whole loan spread to TBA price | Minimum |  |
Assets |  |
Residential loans, measurement input | 0.56 |
Jumbo fixed-rate loans | Whole loan spread to TBA price | Maximum |  |
Assets |  |
Residential loans, measurement input | 1.56 |
Jumbo fixed-rate loans | Whole loan spread to TBA price | Weighted Average |  |
Assets |  |
Residential loans, measurement input | 1.55 |
Jumbo fixed-rate loans | Whole loan spread to swap rate | Minimum |  |
Assets |  |
Residential loans, measurement input | 0.0094 |
Jumbo fixed-rate loans | Whole loan spread to swap rate | Maximum |  |
Assets |  |
Residential loans, measurement input | 0.0375 |
Jumbo fixed-rate loans | Whole loan spread to swap rate | Weighted Average |  |
Assets |  |
Residential loans, measurement input | 0.0184 |
Jumbo hybrid loans |  |
Assets |  |
Residential loans, at fair value | $ | $ 321,793 |
Jumbo hybrid loans | Prepayment rate (annual CPR) | Minimum |  |
Assets |  |
Residential loans, measurement input | 0.15 |
Jumbo hybrid loans | Prepayment rate (annual CPR) | Maximum |  |
Assets |  |
Residential loans, measurement input | 0.15 |
Jumbo hybrid loans | Prepayment rate (annual CPR) | Weighted Average |  |
Assets |  |
Residential loans, measurement input | 0.15 |
Jumbo hybrid loans | Whole loan spread to swap rate | Minimum |  |
Assets |  |
Residential loans, measurement input | 0.0090 |
Jumbo hybrid loans | Whole loan spread to swap rate | Maximum |  |
Assets |  |
Residential loans, measurement input | 0.0345 |
Jumbo hybrid loans | Whole loan spread to swap rate | Weighted Average |  |
Assets |  |
Residential loans, measurement input | 0.0146 |
Jumbo loans committed to sell |  |
Assets |  |
Residential loans, at fair value | $ | $ 418,905 |
Jumbo loans committed to sell | Whole loan committed sales price | Minimum |  |
Assets |  |
Residential loans, measurement input | 101.88 |
Jumbo loans committed to sell | Whole loan committed sales price | Maximum |  |
Assets |  |
Residential loans, measurement input | 102.91 |
Jumbo loans committed to sell | Whole loan committed sales price | Weighted Average |  |
Assets |  |
Residential loans, measurement input | 102.27 |
Legacy Sequoia |  |
Assets |  |
Residential loans, at fair value | $ | $ 429,159 |
Liabilities |  |
Fair value of securities owned | $ | 266,000 |
Sequoia Choice |  |
Assets |  |
Residential loans, at fair value | $ | 2,618,316 |
Liabilities |  |
Fair value of securities owned | $ | 454,000 |
Freddie Mac SLST |  |
Assets |  |
Residential loans, at fair value | $ | 2,441,223 |
Liabilities |  |
Fair value of securities owned | $ | 214,000 |
Business purpose residential loans, at fair value |  |
Assets |  |
Residential loans, at fair value | $ | $ 129,145 |
Business purpose residential loans, at fair value | Prepayment rate (annual CPR) | Minimum |  |
Assets |  |
Residential loans, measurement input | 0.01 |
Business purpose residential loans, at fair value | Prepayment rate (annual CPR) | Maximum |  |
Assets |  |
Residential loans, measurement input | 0.10 |
Business purpose residential loans, at fair value | Prepayment rate (annual CPR) | Weighted Average |  |
Assets |  |
Residential loans, measurement input | 0.05 |
Business purpose residential loans, at fair value | Discount rate | Minimum |  |
Assets |  |
Residential loans, measurement input | 0.05 |
Business purpose residential loans, at fair value | Discount rate | Maximum |  |
Assets |  |
Residential loans, measurement input | 0.08 |
Business purpose residential loans, at fair value | Discount rate | Weighted Average |  |
Assets |  |
Residential loans, measurement input | 0.08 |
Business purpose residential loans, at fair value | Senior credit spread | Minimum |  |
Assets |  |
Residential loans, measurement input | 0.0110 |
Business purpose residential loans, at fair value | Senior credit spread | Maximum |  |
Assets |  |
Residential loans, measurement input | 0.0110 |
Business purpose residential loans, at fair value | Senior credit spread | Weighted Average |  |
Assets |  |
Residential loans, measurement input | 0.0110 |
Business purpose residential loans, at fair value | Subordinate credit spread | Minimum |  |
Assets |  |
Residential loans, measurement input | 0.0143 |
Business purpose residential loans, at fair value | Subordinate credit spread | Maximum |  |
Assets |  |
Residential loans, measurement input | 0.1250 |
Business purpose residential loans, at fair value | Subordinate credit spread | Weighted Average |  |
Assets |  |
Residential loans, measurement input | 0.0308 |
Business purpose residential loans, at fair value | Senior credit support | Minimum |  |
Assets |  |
MSR, measurement input | 0.35 |
Business purpose residential loans, at fair value | Senior credit support | Maximum |  |
Assets |  |
MSR, measurement input | 0.36 |
Business purpose residential loans, at fair value | Senior credit support | Weighted Average |  |
Assets |  |
MSR, measurement input | 0.36 |
Residential bridge loans |  |
Assets |  |
Residential loans, at fair value | $ | $ 206,890 |
Residential bridge loans | Discount rate | Minimum |  |
Assets |  |
Residential loans, measurement input | 0.06 |
Residential bridge loans | Discount rate | Maximum |  |
Assets |  |
Residential loans, measurement input | 0.10 |
Residential bridge loans | Discount rate | Weighted Average |  |
Assets |  |
Residential loans, measurement input | 0.07 |
Freddie Mac K-Series |  |
Assets |  |
Residential loans, at fair value | $ | $ 3,791,622 |
Trading and AFS securities |  |
Assets |  |
Trading and AFS securities | $ | $ 1,285,426 |
Trading and AFS securities | Prepayment rate (annual CPR) | Minimum |  |
Assets |  |
Trading and AFS securities | 0 |
Trading and AFS securities | Prepayment rate (annual CPR) | Maximum |  |
Assets |  |
Trading and AFS securities | 0.60 |
Trading and AFS securities | Prepayment rate (annual CPR) | Weighted Average |  |
Assets |  |
Trading and AFS securities | 0.13 |
Trading and AFS securities | Discount rate | Minimum |  |
Assets |  |
Trading and AFS securities | 0.02 |
Trading and AFS securities | Discount rate | Maximum |  |
Assets |  |
Trading and AFS securities | 0.15 |
Trading and AFS securities | Discount rate | Weighted Average |  |
Assets |  |
Trading and AFS securities | 0.05 |
Trading and AFS securities | Default rate | Minimum |  |
Assets |  |
Trading and AFS securities | 0 |
Trading and AFS securities | Default rate | Maximum |  |
Assets |  |
Trading and AFS securities | 0.20 |
Trading and AFS securities | Default rate | Weighted Average |  |
Assets |  |
Trading and AFS securities | 0.01 |
Trading and AFS securities | Loss severity | Minimum |  |
Assets |  |
Trading and AFS securities | 0 |
Trading and AFS securities | Loss severity | Maximum |  |
Assets |  |
Trading and AFS securities | 0.40 |
Trading and AFS securities | Loss severity | Weighted Average |  |
Assets |  |
Trading and AFS securities | 0.21 |
Servicer advance investments |  |
Assets |  |
Mortgage servicing rights | $ | $ 222,591 |
Servicer advance investments | Minimum |  |
Assets |  |
Expected remaining life | 2 years |
Servicer advance investments | Maximum |  |
Assets |  |
Expected remaining life | 2 years |
Servicer advance investments | Weighted Average |  |
Assets |  |
Expected remaining life | 2 years |
Servicer advance investments | Prepayment rate (annual CPR) | Minimum |  |
Assets |  |
MSR, measurement input | 0.08 |
Servicer advance investments | Prepayment rate (annual CPR) | Maximum |  |
Assets |  |
MSR, measurement input | 0.15 |
Servicer advance investments | Prepayment rate (annual CPR) | Weighted Average |  |
Assets |  |
MSR, measurement input | 0.14 |
Servicer advance investments | Discount rate | Minimum |  |
Assets |  |
MSR, measurement input | 0.05 |
Servicer advance investments | Discount rate | Maximum |  |
Assets |  |
MSR, measurement input | 0.05 |
Servicer advance investments | Discount rate | Weighted Average |  |
Assets |  |
MSR, measurement input | 0.05 |
MSRs |  |
Assets |  |
Mortgage servicing rights | $ | $ 39,837 |
MSRs | Prepayment rate (annual CPR) | Minimum |  |
Assets |  |
MSR, measurement input | 0.06 |
MSRs | Prepayment rate (annual CPR) | Maximum |  |
Assets |  |
MSR, measurement input | 0.53 |
MSRs | Prepayment rate (annual CPR) | Weighted Average |  |
Assets |  |
MSR, measurement input | 0.14 |
MSRs | Discount rate | Minimum |  |
Assets |  |
MSR, measurement input | 0.11 |
MSRs | Discount rate | Maximum |  |
Assets |  |
MSR, measurement input | 0.13 |
MSRs | Discount rate | Weighted Average |  |
Assets |  |
MSR, measurement input | 0.11 |
MSRs | Per loan annual cost to service | Minimum |  |
Assets |  |
MSR, measurement input | 82 |
MSRs | Per loan annual cost to service | Maximum |  |
Assets |  |
MSR, measurement input | 82 |
MSRs | Per loan annual cost to service | Weighted Average |  |
Assets |  |
MSR, measurement input | 82 |
Excess MSRs |  |
Assets |  |
Mortgage servicing rights | $ | $ 32,937 |
Excess MSRs | Prepayment rate (annual CPR) | Minimum |  |
Assets |  |
MSR, measurement input | 0.09 |
Excess MSRs | Prepayment rate (annual CPR) | Maximum |  |
Assets |  |
MSR, measurement input | 0.14 |
Excess MSRs | Prepayment rate (annual CPR) | Weighted Average |  |
Assets |  |
MSR, measurement input | 0.11 |
Excess MSRs | Discount rate | Minimum |  |
Assets |  |
MSR, measurement input | 0.11 |
Excess MSRs | Discount rate | Maximum |  |
Assets |  |
MSR, measurement input | 0.16 |
Excess MSRs | Discount rate | Weighted Average |  |
Assets |  |
MSR, measurement input | 0.14 |
Excess MSRs | Excess mortgage servicing income | Minimum |  |
Assets |  |
MSR, measurement input | 0.0008 |
Excess MSRs | Excess mortgage servicing income | Maximum |  |
Assets |  |
MSR, measurement input | 0.0017 |
Excess MSRs | Excess mortgage servicing income | Weighted Average |  |
Assets |  |
MSR, measurement input | 0.0013 |
Home appreciation options |  |
Assets |  |
Shared home appreciation options | $ | $ 11,372 |
Guarantee asset |  |
Assets |  |
Guarantee asset | $ | $ 1,784 |
Guarantee asset | Prepayment rate (annual CPR) | Minimum |  |
Assets |  |
Guarantee asset | 0.16 |
Shared home appreciation options | 0.10 |
Guarantee asset | Prepayment rate (annual CPR) | Maximum |  |
Assets |  |
Guarantee asset | 0.16 |
Shared home appreciation options | 0.30 |
Guarantee asset | Prepayment rate (annual CPR) | Weighted Average |  |
Assets |  |
Guarantee asset | 0.16 |
Shared home appreciation options | 0.23 |
Guarantee asset | Discount rate | Minimum |  |
Assets |  |
Guarantee asset | 0.11 |
Shared home appreciation options | 0.11 |
Guarantee asset | Discount rate | Maximum |  |
Assets |  |
Guarantee asset | 0.11 |
Shared home appreciation options | 0.11 |
Guarantee asset | Discount rate | Weighted Average |  |
Assets |  |
Guarantee asset | 0.11 |
Shared home appreciation options | 0.11 |
Guarantee asset | Home price appreciation | Minimum |  |
Assets |  |
Shared home appreciation options | 0.03 |
Guarantee asset | Home price appreciation | Maximum |  |
Assets |  |
Shared home appreciation options | 0.03 |
Guarantee asset | Home price appreciation | Weighted Average |  |
Assets |  |
Shared home appreciation options | 0.03 |
REO |  |
Assets |  |
REO | $ | $ 4,525 |
REO | Loss severity | Minimum |  |
Assets |  |
REO, measurement input | 0.16 |
REO | Loss severity | Maximum |  |
Assets |  |
REO, measurement input | 0.16 |
REO | Loss severity | Weighted Average |  |
Assets |  |
REO, measurement input | 0.16 |

X
- Definition Debt Securities, Trading And Available-for-sale, Expected Remaining Life + References No definition available. + Details
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- Definition Home Appreciation Options, Fair value Disclosure + References No definition available. + Details
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- Definition Amount of liability recognized arising from contingent consideration in a business combination. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=35744584&loc=d3e6927-128479 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 35 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=116859824&loc=d3e6819-128478 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 25 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=6911189&loc=d3e6408-128476 + Details
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- Definition Value of input used to measure contingent consideration liability from business combination. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (bbb)(2) -URI http://asc.fasb.org/extlink&oid=117815213&loc=d3e19207-110258 + Details
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- Definition Fair value portion of debt instrument payable, including, but not limited to, notes payable and loans payable. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 10 -URI http://asc.fasb.org/extlink&oid=118260190&loc=d3e13433-108611 + Details
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