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Loans and Allowance for Credit Losses - Allowance for Credit Losses (Details) $ in Thousands | 3 Months Ended | 6 Months Ended |
--- | --- | --- | ---
Jun. 30, 2017 USD ($) component quarter | Jun. 30, 2016 USD ($) | Jun. 30, 2017 USD ($) component quarter | Jun. 30, 2016 USD ($) | Dec. 31, 2016 USD ($)
Financing Receivable, Allowance for Credit Losses [Line Items] |  |  |  |  |
Number of primary components | component | 2 |  | 2 |  |
Lookback period used in reserve analysis | quarter | 20 |  | 20 |  |
Financing Receivable, Allowance for Credit Losses [Roll Forward] |  |  |  |  |
Allowance for credit losses, beginning balance | $ 9,214 | $ 10,136 | $ 9,326 | $ 9,610 |
Provision charged to operations | (150) | (4,600) | (250) | (4,850) |
Losses charged to allowance | (27) | (105) | (210) | (118) |
Recoveries | 260 | 4,441 | 431 | 5,230 |
Allowance for credit losses, ending balance | 9,297 | 9,872 | 9,297 | 9,872 |
Ending balance: individually evaluated for impairment | 76 |  | 76 |  | $ 307
Ending balance: collectively evaluated for impairment | 9,221 |  | 9,221 |  | 9,019
Commercial |  |  |  |  |
Financing Receivable, Allowance for Credit Losses [Roll Forward] |  |  |  |  |
Allowance for credit losses, beginning balance | 2,021 | 3,743 | 2,180 | 3,562 |
Provision charged to operations | (7) | (4,673) | (244) | (4,825) |
Losses charged to allowance | 0 | 0 | (44) | (4) |
Recoveries | 182 | 3,902 | 304 | 4,239 |
Allowance for credit losses, ending balance | 2,196 | 2,972 | 2,196 | 2,972 |
Ending balance: individually evaluated for impairment | 1 |  | 1 |  | 3
Ending balance: collectively evaluated for impairment | 2,195 |  | 2,195 |  | 2,177
Real Estate Portfolio Segment |  |  |  |  |
Financing Receivable, Allowance for Credit Losses [Roll Forward] |  |  |  |  |
Allowance for credit losses, beginning balance | 6,225 | 5,281 | 6,200 | 5,204 |
Provision charged to operations | (346) | (56) | (304) | (395) |
Losses charged to allowance | 0 | 0 | (22) | 0 |
Recoveries | 52 | 435 | 57 | 851 |
Allowance for credit losses, ending balance | 5,931 | 5,660 | 5,931 | 5,660 |
Ending balance: individually evaluated for impairment | 29 |  | 29 |  | 241
Ending balance: collectively evaluated for impairment | 5,902 |  | 5,902 |  | 5,959
Consumer |  |  |  |  |
Financing Receivable, Allowance for Credit Losses [Roll Forward] |  |  |  |  |
Allowance for credit losses, beginning balance | 775 | 894 | 852 | 734 |
Provision charged to operations | 19 | 55 | 15 | 188 |
Losses charged to allowance | (27) | (105) | (144) | (114) |
Recoveries | 26 | 104 | 70 | 140 |
Allowance for credit losses, ending balance | 793 | 948 | 793 | 948 |
Ending balance: individually evaluated for impairment | 46 |  | 46 |  | 63
Ending balance: collectively evaluated for impairment | 747 |  | 747 |  | 789
Unallocated |  |  |  |  |
Financing Receivable, Allowance for Credit Losses [Roll Forward] |  |  |  |  |
Allowance for credit losses, beginning balance | 193 | 218 | 94 | 110 |
Provision charged to operations | 184 | 74 | 283 | 182 |
Losses charged to allowance | 0 | 0 | 0 | 0 |
Recoveries | 0 | 0 | 0 | 0 |
Allowance for credit losses, ending balance | 377 | $ 292 | 377 | $ 292 |
Ending balance: individually evaluated for impairment | 0 |  | 0 |  | 0
Ending balance: collectively evaluated for impairment | $ 377 |  | $ 377 |  | $ 94

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- Definition Financing Receivable, Allowance for Credit Losses, Methodology Change, Number of Rolling Quarters Used in Analysis + References No definition available. + Details
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- Definition Loans and Leases Receivable, Allowance, Number of Components + References No definition available. + Details
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- Definition A valuation allowance for financing receivables that are expected to be uncollectible. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=84173941&loc=SL6953423-111524 + Details
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- Definition The valuation allowance for financing receivables that are expected to be uncollectible that were collectively evaluated for impairment. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (g) -URI http://asc.fasb.org/extlink&oid=84173941&loc=SL6953423-111524 + Details
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- Definition Amount of recovery of financing receivables doubtful of collection that were previously charged off. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (c)(4) -URI http://asc.fasb.org/extlink&oid=84173941&loc=SL6953423-111524 + Details
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