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Business Combinations Assets Acquired and Liabilities Assumed (Details) - USD ($) |  | 3 Months Ended | 9 Months Ended
--- | --- | --- | ---
Sep. 08, 2016 | Sep. 30, 2017 | Sep. 30, 2017
Business Acquisition [Line Items] |  |  |
Finite-Lived Intangible Asset, Useful Life | 10 years |  |
First Clover Leaf [Member] |  |  |
Business Acquisition [Line Items] |  |  |
Business Combination Recognized Identifiable Assets Acquired and LIabilities Assumed, cash on hand | $ 59,320,000 |  |
Business Combination, Recognized Identifiable Assets and Liabilities Assumed, Securities | (109,174,000) |  |
Business Combination, Recognized Identifiable Assets and Liabilities Assumed, Loans | (438,265,000) |  |
Business Combination Recognized Identifiable Assets Acquired and Liabilities Assumed Allowance For Loan Losses | 0 |  |
Business Combination, Recognized Identifiable Assets and Liabilities Assumed, Repossessed Assets | (1,987,000) |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Premises And Equipment | (11,581,000) |  |
Business Acquisition, Goodwill, Non-deductible Amount | 19,143,000 |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill | 4,660,000 |  |
Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed, Other Assets | (26,849,000) |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Assets | 670,979,000 |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Deposits | 536,686,000 |  |
Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed, Securities Sold Under Agreements to Repurchase | 23,263,000 |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, FHLB Advances | 15,113,000 |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Subordinated Debentures | 3,269,000 |  |
Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed, Other Liabilities | 4,177,000 |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Liabilities | 582,508,000 |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net | 88,471,000 |  |
Aggregate Total Of Cash Paid In Business Combination | 22,545,000 |  |
Business Acquisition, Equity Interest Issued or Issuable, Value Assigned | 65,926,000 |  |
Business Combination, Value of Total Consideration Paid | 88,471,000 |  |
Business Combination, Aggregate Acquisition Costs |  |  | $ 3,302,000
Business Combination, Acquisition Related Costs |  | $ 1,962,000 |
Acquired Book Value [Member] | First Clover Leaf [Member] |  |  |
Business Acquisition [Line Items] |  |  |
Business Combination Recognized Identifiable Assets Acquired and LIabilities Assumed, cash on hand | 59,320,000 |  |
Business Combination, Recognized Identifiable Assets and Liabilities Assumed, Securities | (109,911,000) |  |
Business Combination, Recognized Identifiable Assets and Liabilities Assumed, Loans | (448,668,000) |  |
Business Combination Recognized Identifiable Assets Acquired and Liabilities Assumed Allowance For Loan Losses | (6,928,000) |  |
Business Combination, Recognized Identifiable Assets and Liabilities Assumed, Repossessed Assets | (2,741,000) |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Premises And Equipment | (9,618,000) |  |
Business Acquisition, Goodwill, Non-deductible Amount | 11,385,000 |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill | 99,000 |  |
Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed, Other Assets | (23,974,000) |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Assets | 658,788,000 |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Deposits | 534,692,000 |  |
Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed, Securities Sold Under Agreements to Repurchase | 23,263,000 |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, FHLB Advances | 15,000,000 |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Subordinated Debentures | 4,000,000 |  |
Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed, Other Liabilities | 2,103,000 |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Liabilities | 579,058,000 |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net | 79,730,000 |  |
Fair Value Adjustment [Member] | First Clover Leaf [Member] |  |  |
Business Acquisition [Line Items] |  |  |
Business Combination Recognized Identifiable Assets Acquired and LIabilities Assumed, cash on hand | 0 |  |
Business Combination, Recognized Identifiable Assets and Liabilities Assumed, Securities | (737,000) |  |
Business Combination, Recognized Identifiable Assets and Liabilities Assumed, Loans | (10,403,000) |  |
Business Combination Recognized Identifiable Assets Acquired and Liabilities Assumed Allowance For Loan Losses | (6,928,000) |  |
Business Combination, Recognized Identifiable Assets and Liabilities Assumed, Repossessed Assets | (754,000) |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Premises And Equipment | 1,963,000 |  |
Business Acquisition, Goodwill, Non-deductible Amount | 7,758,000 |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill | 4,561,000 |  |
Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed, Other Assets | 2,875,000 |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Assets | 12,191,000 |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Deposits | 1,994,000 |  |
Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed, Securities Sold Under Agreements to Repurchase | 0 |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, FHLB Advances | 113,000 |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Subordinated Debentures | (731,000) |  |
Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed, Other Liabilities | 2,074,000 |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Liabilities | 3,450,000 |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net | 8,741,000 |  |
Fair Value Adjustments, Accretable portion [Member] | First Clover Leaf [Member] |  |  |
Business Acquisition [Line Items] |  |  |
Business Combination, Recognized Identifiable Assets and Liabilities Assumed, Loans | $ 8,400,000 |  |

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- Definition Business Combination Recognized Identifiable Assets Acquired And LIabilities Assumed, Total Cash is the sum of the cash on hand at branches acquired and the cash settlement for difference between assets acquired and liabilities assumed + References No definition available. + Details
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- Definition Business Combination Recognized Identifiable Assets Acquired and Liabilities Assumed Allowance For Loan Losses + References No definition available. + Details
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- Definition Business Combination: Approximate Deposits to be acquired + References No definition available. + Details
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- Definition Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, FHLB Advances + References No definition available. + Details
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- Definition Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Premises And Equipment + References No definition available. + Details
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- Definition Approximate amount of loans to acquired in Business Combination + References No definition available. + Details
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- Definition Business Combination, Value of Total Consideration Paid + References No definition available. + Details
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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- Definition This element represents acquisition-related costs incurred to effect a business combination which costs have been expensed during the period. Such costs include finder's fees; advisory, legal, accounting, valuation, and other professional or consulting fees; general administrative costs, including the costs of maintaining an internal acquisitions department; and may include costs of registering and issuing debt and equity securities. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 10 -Section 25 -Paragraph 23 -URI http://asc.fasb.org/extlink&oid=73531572&loc=d3e1043-128460 + Details
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- Definition Amount of equity interests of the acquirer, including instruments or interests issued or issuable in consideration for the business combination. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 30 -Paragraph 7 -URI http://asc.fasb.org/extlink&oid=6911251&loc=d3e6578-128477 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 30 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=6911251&loc=d3e6613-128477 + Details
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- Definition Amount of assets acquired at the acquisition date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=73530397&loc=d3e4845-128472 + Details
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- Definition Amount of intangible assets, excluding goodwill, acquired at the acquisition date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=73530397&loc=d3e4845-128472 + Details
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- Definition Amount of liabilities assumed at the acquisition date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=73530397&loc=d3e4845-128472 + Details
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- Definition Amount recognized as of the acquisition date for the identifiable assets acquired in excess of (less than) the aggregate liabilities assumed. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 10 -Section 55 -Paragraph 37 -URI http://asc.fasb.org/extlink&oid=73531372&loc=d3e2207-128464 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=73530397&loc=d3e4845-128472 + Details
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- Definition Useful life of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References No definition available. + Details
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