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Intangible Assets (Details 4) (Mortgage Service Rights) | 6 Months Ended
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Jun. 30, 2013 | Jun. 30, 2012
Mortgage Service Rights |  |
Assumptions used in estimating the fair value of mortgage service rights |  |
Weighted - Average Constant Prepayment Rate (as a percent) | 16.02% | 18.13%
Weighted - Average Note Rate (as a percent) | 4.04% | 4.49%
Weighted - Average Discount Rate (as a percent) | 8.05% | 8.04%
Weighted - Average Expected Life (in years) | 20 years | 20 years

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- Definition The weighted average note rate used to estimate the fair value of servicing assets and servicing liabilities. + References No definition available. + Details
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- Definition Discount rate used to estimate the fair value of servicing assets and servicing liabilities. + 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 (d) -URI http://asc.fasb.org/extlink&oid=7882072&loc=d3e122596-111746 + Details
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- Definition Estimated rate of prepayments of principal on servicing assets and servicing liabilities. + 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 (d) -URI http://asc.fasb.org/extlink&oid=7882072&loc=d3e122596-111746 + Details
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- Definition Weighted average life of financial assets and financial liabilities, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + 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 (d) -URI http://asc.fasb.org/extlink&oid=7882072&loc=d3e122596-111746 + Details
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