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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 | 9 Months Ended
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Sep. 30, 2019 USD ($)
Contingent Consideration |
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |
Beginning balance - December 31, 2018 | $ 0
Acquisitions | 24,621
Principal paydowns | 0
Gains (losses) in net income, net | 546
Other settlements, net | 0
Ending Balance - September 30, 2019 | 25,167
ABS Issued |
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |
Beginning balance - December 31, 2018 | 5,410,073
Acquisitions | 3,423,561
Principal paydowns | (718,293)
Gains (losses) in net income, net | 230,710
Other settlements, net | 0
Ending Balance - September 30, 2019 | 8,346,051
Residential Loans |
Assets |
Beginning balance | 7,254,631
Acquisitions | 5,257,800
Originations | 0
Sales | (2,941,592)
Principal paydowns | (1,068,878)
Gains (losses) in net income, net | 179,964
Unrealized losses in OCI, net | 0
Other settlements, net | (229)
Ending balance | 8,681,696
Business purpose residential loans |
Assets |
Beginning balance | 141,258
Acquisitions | 29,093
Originations | 296,955
Sales | (46,855)
Principal paydowns | (84,410)
Gains (losses) in net income, net | 4,990
Unrealized losses in OCI, net | 0
Other settlements, net | (4,996)
Ending balance | 336,035
Multifamily loans |
Assets |
Beginning balance | 2,144,598
Acquisitions | 1,481,554
Originations | 0
Sales | 0
Principal paydowns | (12,904)
Gains (losses) in net income, net | 178,374
Unrealized losses in OCI, net | 0
Other settlements, net | 0
Ending balance | 3,791,622
Trading securities |
Assets |
Beginning balance | 1,118,612
Acquisitions | 296,484
Originations | 0
Sales | (418,168)
Principal paydowns | (33,730)
Gains (losses) in net income, net | 55,538
Unrealized losses in OCI, net | 0
Other settlements, net | (4,951)
Ending balance | 1,013,785
AFS Securities |
Assets |
Beginning balance | 333,882
Acquisitions | 21,115
Originations | 0
Sales | (82,384)
Principal paydowns | (28,981)
Gains (losses) in net income, net | 24,052
Unrealized losses in OCI, net | 3,957
Other settlements, net | 0
Ending balance | 271,641
Servicer Advance Investments |
Assets |
Beginning balance | 300,468
Acquisitions | 69,610
Originations | 0
Sales | 0
Principal paydowns | (150,512)
Gains (losses) in net income, net | 3,025
Unrealized losses in OCI, net | 0
Other settlements, net | 0
Ending balance | 222,591
MSRs |
Assets |
Beginning balance | 60,281
Acquisitions | 868
Originations | 0
Sales | 0
Principal paydowns | 0
Gains (losses) in net income, net | (21,312)
Unrealized losses in OCI, net | 0
Other settlements, net | 0
Ending balance | 39,837
Excess MSRs |
Assets |
Beginning balance | 27,312
Acquisitions | 7,762
Originations | 0
Sales | 0
Principal paydowns | 0
Gains (losses) in net income, net | (2,137)
Unrealized losses in OCI, net | 0
Other settlements, net | 0
Ending balance | 32,937
Shared Home Appreciation Options |
Assets |
Beginning balance | 0
Acquisitions | 11,343
Originations | 0
Sales | 0
Principal paydowns | 0
Gains (losses) in net income, net | 29
Unrealized losses in OCI, net | 0
Other settlements, net | 0
Ending balance | 11,372
Shared Home Appreciation Options |
Assets |
Beginning balance | 2,618
Acquisitions | 0
Principal paydowns | 0
Gains (losses) in net income, net | (834)
Other settlements, net | 0
Ending balance | 1,784
Derivatives |
Assets |
Beginning balance | 2,181
Acquisitions | 0
Principal paydowns | 0
Gains (losses) in net income, net | 42,415
Other settlements, net | (41,508)
Ending balance | $ 3,088

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