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Market Valuation Adjustments, Net (Detail) (USD $) In Thousands, unless otherwise specified | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2014 | Sep. 30, 2013 | Sep. 30, 2014 | Sep. 30, 2013
Mortgage banking activities market valuation adjustments |  |  |  |  |  |  |  |
Trading securities | $ (1,332) |  | $ (1,866) |  | $ (14,419) |  | $ 36,399 |
Derivative instruments, net | (2,404) |  | 442 |  | (18,159) |  | 51,009 |
Loan purchase and forward sale commitments | 2,487 |  |  |  | 6,077 |  |  |
Total mortgage banking activities market valuation adjustments, net | 16,502 | [1] | (9,057) | [1] | 21,697 | [1] | 72,895 | [1]
MSRs | 2,321 |  | 460 |  | (5,944) |  | 9,628 |
Other market valuation adjustments |  |  |  |  |  |  |  |
Other market valuation adjustments, net | (3,706) | [2] | 462 | [2] | (13,966) | [2] | (6,099) | [2]
Total Market Valuation Adjustments, Net | 15,117 |  | (8,135) |  | 1,787 |  | 76,425 |
Residential Loans at Fair Value |  |  |  |  |  |  |  |
Mortgage banking activities market valuation adjustments |  |  |  |  |  |  |  |
Loans, at fair value | 13,446 |  | (10,804) |  | 34,554 |  | (17,339) |
Commercial Loans at Fair Value |  |  |  |  |  |  |  |
Mortgage banking activities market valuation adjustments |  |  |  |  |  |  |  |
Loans, at fair value | 4,305 |  | 3,171 |  | 13,644 |  | 2,826 |
Residential Loans at Lower of Cost or Fair Value |  |  |  |  |  |  |  |
Other market valuation adjustments |  |  |  |  |  |  |  |
Other market valuation adjustments, net | 43 |  | (11) |  | 54 |  | 68 |
Held For Investment Loans At Fair Value |  |  |  |  |  |  |  |
Other market valuation adjustments |  |  |  |  |  |  |  |
Other market valuation adjustments, net | (991) |  |  |  | (991) |  |  |
Trading Securities |  |  |  |  |  |  |  |
Other market valuation adjustments |  |  |  |  |  |  |  |
Other market valuation adjustments, net | (577) |  | 540 |  | (653) |  | (4,168) |
Impairments on AFS Securities |  |  |  |  |  |  |  |
Other market valuation adjustments |  |  |  |  |  |  |  |
Other market valuation adjustments, net | (188) |  |  |  | (565) |  | (1,666) |
REO |  |  |  |  |  |  |  |
Other market valuation adjustments |  |  |  |  |  |  |  |
Other market valuation adjustments, net | (361) |  | (76) |  | (825) |  | (407) |
Other Derivative Instruments |  |  |  |  |  |  |  |
Other market valuation adjustments |  |  |  |  |  |  |  |
Other market valuation adjustments, net | $ (1,632) |  | $ 9 |  | $ (10,986) |  | $ 74 |
[1] | Income from mortgage banking activities presented above does not include fee income or provisions for repurchases that is a component of mortgage banking income presented on our consolidated statements of income as these amounts do not represent a market valuation adjustment.
[2] | For the three months ended September 30, 2014, other-than-temporary impairments were $188, all of which was recognized through the income statement. For the three months ended September 30, 2013, there were no other-than-temporary impairments. For the nine months ended September 30, 2014, other-than-temporary impairments were $4,774, of which $565 were recognized through the Income Statement and $4,209 were recognized in Accumulated Other Comprehensive Income. For the nine months ended September 30, 2013, other-than-temporary impairments were $1,666, all of which was recognized through the income statement.

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- Definition The aggregate net change in market value for certain assets and liabilities that was included in earnings for the period. This includes changes in market values for assets and liabilities accounted for at fair value, as well as the credit portion of other-than-temporary impairments on securities available for sale, impairments on loans held-for-sale and real estate owned. + References No definition available. + Details
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- Definition For each line item in the statement of financial position, the amounts of gains and losses from fair value changes included in earnings. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 30 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6957238&loc=d3e14172-108612 + Details
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