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Mortgage Banking Activities, Net - Components of Mortgage Banking Activities (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2017 | Jun. 30, 2016 | Jun. 30, 2017 | Jun. 30, 2016
Mortgage Loans on Real Estate [Line Items] |  |  |  |
Mortgage banking activities, net | $ 12,046 | $ 7,728 | $ 29,650 | $ 14,946
Residential Mortgage Banking Activities |  |  |  |
Mortgage Loans on Real Estate [Line Items] |  |  |  |
Other income, net | 1,166 | 286 | 1,374 | 224
Mortgage banking activities, net | 12,046 | 7,728 | 29,650 | 17,008
Residential Mortgage Banking Activities | Residential loans, at fair value |  |  |  |
Mortgage Loans on Real Estate [Line Items] |  |  |  |
Changes in fair value of assets | 16,190 | 16,711 | 34,986 | 34,785
Residential Mortgage Banking Activities | Sequoia securities |  |  |  |
Mortgage Loans on Real Estate [Line Items] |  |  |  |
Changes in fair value of assets | 0 | (29) | 0 | 1,455
Residential Mortgage Banking Activities | Risk management derivatives, net |  |  |  |
Mortgage Loans on Real Estate [Line Items] |  |  |  |
Risk management derivatives | (5,310) | (9,240) | (6,710) | (19,456)
Commercial Mortgage Banking Activities |  |  |  |
Mortgage Loans on Real Estate [Line Items] |  |  |  |
Mortgage banking activities, net | $ 0 | $ 0 | $ 0 | $ (2,062)

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- Definition The net income attributable to mortgage banking activities. This includes market valuations related to residential and commercial loans, Sequoia IOs, and mortgage banking derivatives, as well as realized gains or losses associated with mortgage loan sales. + References No definition available. + Details
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- Definition Amount of unrealized gain (loss) related to the fair value of price risk derivatives designated as fair value hedging instruments, as offset by the gain (loss) on the hedged item to the extent that the fair value hedge is determined to be effective. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4C -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=64837297&loc=SL5624171-113959 + Details
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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- Definition Amount of fee and financial service revenue classified as other. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.1(d)) -URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688 + Details
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