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Mortgage Servicing Rights - Schedule of Servicing Income and Expense Included in Mortgage Banking Income (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
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Jun. 30, 2017 | Jun. 30, 2016 | Jun. 30, 2017 | Jun. 30, 2016
Servicing income: |  |  |  |
Servicing income | $ 2,747 | $ 2,655 | $ 5,495 | $ 4,651
Change in fair value of mortgage servicing rights | (1,840) |  | (2,341) |
Gross servicing income | 907 | 2,655 | 3,154 | 4,651
Servicing expenses: |  |  |  |
Servicing asset amortization |  | 1,968 |  | 3,425
Servicing asset impairment |  | 4,914 |  | 5,687
Loss on sale of mortgage servicing rights | 249 |  | 249 |
Other servicing expenses | 1,204 | 538 | 2,138 | 946
Gross servicing expenses | 1,453 | 7,420 | 2,387 | 10,058
Net servicing (loss) income | $ (546) | $ (4,765) | $ 767 | $ (5,407)

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- Definition Change in fair value of mortgage servicing rights. + References No definition available. + Details
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- Definition Gain (loss) on sale of mortgage servicing rights. + References No definition available. + Details
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- Definition Gross servicing expenses. + References No definition available. + Details
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- Definition Other servicing expenses. + References No definition available. + Details
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- Definition Servicing expenses. + References No definition available. + Details
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- Definition Servicing income. + References No definition available. + Details
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- Definition Servicing income (loss). + References No definition available. + Details
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- Definition All amounts that, per contract, are due to the servicer in exchange for servicing the financial asset and would no longer be received by a servicer if the beneficial owners of the serviced assets (or their trustees or agents) were to exercise their actual or potential authority under the contract to shift the servicing to another servicer. Depending on the servicing contract, those fees may include some or all of the difference between the interest rate collected on the asset being serviced and the rate to be paid to the beneficial owners of the asset. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 860 -SubTopic 50 -Section 50 -Paragraph 2 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=68078379&loc=d3e122596-111746 + Details
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- Definition The total amount of contractually specified servicing fees, late fees, and ancillary fees earned for each period for which results of operations are presented. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 860 -SubTopic 50 -Section 50 -Paragraph 2 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=68078379&loc=d3e122596-111746 + Details
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- Definition Amount of other-than-temporary impairment (OTTI) applied to contract to service financial assets under which the benefits of servicing are expected to more than adequately compensate the servicer. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 860 -SubTopic 50 -Section 50 -Paragraph 4 -Subparagraph (a)(6) -URI http://asc.fasb.org/extlink&oid=68078379&loc=d3e122739-111746 + Details
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- Definition Amount of amortization of contract to service financial assets under which the benefits of servicing are expected to more than adequately compensate the servicer. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 860 -SubTopic 50 -Section 50 -Paragraph 4 -Subparagraph (a)(4) -URI http://asc.fasb.org/extlink&oid=68078379&loc=d3e122739-111746 + Details
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