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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 | 3 Months Ended
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Mar. 31, 2018 USD ($)
Asset-backed securities issued |
Liabilities |
Beginning balance | $ 1,164,585
Acquisitions | 441,741
Sales | 0
Principal paydowns | (84,974)
Gains (losses) in net income, net | 20,735
Unrealized gains in OCI, net | 0
Other settlements, net | 0
Ending balance | 1,542,087
Residential Loans |
Assets |
Beginning balance | 5,114,317
Acquisitions | 1,814,944
Sales | (1,594,521)
Principal paydowns | (175,525)
Gains (losses) in net income, net | (12,502)
Unrealized losses in OCI, net | 0
Other settlements, net | (1,268)
Ending balance | 5,145,445
Trading securities retained, at fair value |
Assets |
Beginning balance | 968,844
Acquisitions | 140,560
Sales | (193,130)
Principal paydowns | (5,834)
Gains (losses) in net income, net | (3,008)
Unrealized losses in OCI, net | 0
Other settlements, net | 0
Ending balance | 907,432
AFS Securities |
Assets |
Beginning balance | 507,666
Acquisitions | 3,905
Sales | (50,742)
Principal paydowns | (10,412)
Gains (losses) in net income, net | 13,423
Unrealized losses in OCI, net | (13,552)
Other settlements, net | 0
Ending balance | 450,288
MSRs |
Assets |
Beginning balance | 63,598
Acquisitions | 0
Sales | 0
Principal paydowns | 0
Gains (losses) in net income, net | 2,898
Unrealized losses in OCI, net | 0
Other settlements, net | 0
Ending balance | 66,496
Guarantee Asset |
Assets |
Beginning balance | 2,869
Acquisitions | 0
Sales | 0
Principal paydowns | 0
Gains (losses) in net income, net | 186
Unrealized losses in OCI, net | 0
Other settlements, net | 0
Ending balance | 3,055
Derivatives |
Assets |
Beginning balance | 1,714
Acquisitions | 0
Sales | 0
Principal paydowns | 0
Gains (losses) in net income, net | (6,923)
Unrealized losses in OCI, net | 0
Other settlements, net | 5,335
Ending balance | $ 126

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- Definition Amount of gain (loss) recognized in the income statement for financial instrument classified as an asset measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=66048111&loc=d3e19207-110258 + Details
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