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Fair Value of Financial Instruments - Changes in Level 3 Assets and Liabilities Measured at Fair Value on Recurring Basis (Details) $ in Thousands | 6 Months Ended
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Jun. 30, 2021 USD ($)
ABS Issued |
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |
Beginning balance - December 31, 2020 | $ 6,900,362
Acquisitions | 1,629,218
Principal paydowns | (1,055,541)
Gains (losses) in net income (loss), net | (113,273)
Other settlements, net | 0
Ending balance - June 30, 2021 | 7,360,766
Residential Loans |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |
Beginning balance - December 31, 2020 | 4,249,014
Acquisitions | 6,684,292
Originations | 0
Sales | (4,531,811)
Principal paydowns | (727,627)
Gains (losses) in net income (loss), net | 70,184
Unrealized losses in OCI, net | 0
Other settlements, net | (1,487)
Ending balance - June 30, 2021 | 5,742,565
Business purpose loans |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |
Beginning balance - December 31, 2020 | 4,136,353
Acquisitions | 0
Originations | 913,704
Sales | (9,231)
Principal paydowns | (599,889)
Gains (losses) in net income (loss), net | (17,835)
Unrealized losses in OCI, net | 0
Other settlements, net | (14,213)
Ending balance - June 30, 2021 | 4,408,889
Multifamily loans |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |
Beginning balance - December 31, 2020 | 492,221
Acquisitions | 0
Originations | 0
Sales | 0
Principal paydowns | (3,806)
Gains (losses) in net income (loss), net | (3,258)
Unrealized losses in OCI, net | 0
Other settlements, net | 0
Ending balance - June 30, 2021 | 485,157
Trading Securities |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |
Beginning balance - December 31, 2020 | 125,667
Acquisitions | 26,367
Originations | 0
Sales | (31,949)
Principal paydowns | (807)
Gains (losses) in net income (loss), net | 23,147
Unrealized losses in OCI, net | 0
Other settlements, net | 0
Ending balance - June 30, 2021 | 142,425
AFS Securities |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |
Beginning balance - December 31, 2020 | 218,458
Acquisitions | 1,600
Originations | 0
Sales | (4,785)
Principal paydowns | (28,979)
Gains (losses) in net income (loss), net | 14,172
Unrealized losses in OCI, net | 11,995
Other settlements, net | 0
Ending balance - June 30, 2021 | 212,461
Servicer Advance Investments |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |
Beginning balance - December 31, 2020 | 231,489
Acquisitions | 0
Originations | 0
Sales | 0
Principal paydowns | (45,838)
Gains (losses) in net income (loss), net | (1,100)
Unrealized losses in OCI, net | 0
Other settlements, net | 0
Ending balance - June 30, 2021 | 184,551
MSRs |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |
Beginning balance - December 31, 2020 | 8,815
Acquisitions | 2,283
Originations | 0
Sales | 0
Principal paydowns | 0
Gains (losses) in net income (loss), net | (2,251)
Unrealized losses in OCI, net | 0
Other settlements, net | (126)
Ending balance - June 30, 2021 | 8,721
Excess MSRs |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |
Beginning balance - December 31, 2020 | 34,418
Acquisitions | 0
Originations | 0
Sales | 0
Principal paydowns | 0
Gains (losses) in net income (loss), net | (4,430)
Unrealized losses in OCI, net | 0
Other settlements, net | 0
Ending balance - June 30, 2021 | 29,988
Shared Home Appreciation Options |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |
Beginning balance - December 31, 2020 | 42,440
Acquisitions | 0
Originations | 0
Sales | 0
Principal paydowns | (5,516)
Gains (losses) in net income (loss), net | 7,395
Unrealized losses in OCI, net | 0
Other settlements, net | 0
Ending balance - June 30, 2021 | 44,319
Derivatives |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |
Beginning balance - December 31, 2020 | 14,450
Acquisitions | 0
Principal paydowns | 0
Gains (losses) in net income (loss), net | (197)
Other settlements, net | (784)
Ending balance - June 30, 2021 | $ 13,469

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