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Interest Income - Schedule of Components of Interest Income (Details) (USD $) In Thousands, unless otherwise specified | 12 Months Ended
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Dec. 31, 2014 | Dec. 31, 2013 | Dec. 31, 2012
Other Income and Expenses [Abstract] |  |  |
Loans held for sale | $ 20,299 us-gaap_InterestAndFeeIncomeLoansHeldForSaleMortgages | $ 18,563 us-gaap_InterestAndFeeIncomeLoansHeldForSaleMortgages | $ 2,946 us-gaap_InterestAndFeeIncomeLoansHeldForSaleMortgages
Other | 2,692 us-gaap_InterestIncomeOther | 3,792 us-gaap_InterestIncomeOther | 5,383 us-gaap_InterestIncomeOther
Interest Income | $ 22,991 us-gaap_InterestIncomeOperating | $ 22,355 us-gaap_InterestIncomeOperating | $ 8,329 us-gaap_InterestIncomeOperating

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- Definition Interest and fee income from mortgage loans considered to be held-for-sale. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 225 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-04.1) -URI http://asc.fasb.org/extlink&oid=6879574&loc=d3e536633-122882 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Paragraph 1 -Article 9 + Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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- Definition Amount of operating interest income, including, but not limited to, amortization and accretion of premiums and discounts on securities. + 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(e)) -URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688 + Details
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Period Type: | duration

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- Definition Amount of interest income earned from interest bearing assets not separately disclosed. + References No definition available. + Details
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Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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- Details
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