XML 120 R104.htm IDEA: XBRL DOCUMENT
v3.8.0.1

NEW WINDSOR ACQUISITION (Fair Value Adjustments) (Details) - New Windsor $ in Thousands | Jul. 01, 2017 USD ($)
--- | ---
Business Acquisition [Line Items] |
Gross amortized cost basis at July 1, 2017 | $ 272,646
Interest rate fair value adjustment on pools of homogeneous loans | (731)
Credit fair value adjustment | (4,501)
Fair value of acquired loans at July 1, 2017 | 263,450
Purchased credit impaired loans |
Business Acquisition [Line Items] |
Credit fair value adjustment | $ (3,964)

X
- Definition Business Combination, Acquired Receivables, Credit Fair Value Adjustments + References No definition available. + Details
Name: | acnb_BusinessCombinationAcquiredReceivablesCreditFairValueAdjustments
Namespace Prefix: | acnb_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Business Combination, Acquired Receivables, Interest Rate Fair Value Adjustments + References No definition available. + Details
Name: | acnb_BusinessCombinationAcquiredReceivablesInterestRateFairValueAdjustments
Namespace Prefix: | acnb_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- 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
Name: | us-gaap_BusinessAcquisitionLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Fair value of acquired receivable from business combination, excluding certain loans and debt securities acquired in transfer. + 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 (b)(1) -URI http://asc.fasb.org/extlink&oid=84161108&loc=d3e4845-128472 + Details
Name: | us-gaap_BusinessCombinationAcquiredReceivablesFairValue
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition For receivables acquired in a business combination, excluding certain loans and debt securities acquired in a transfer (as defined), this element represents the gross contractual amounts receivable, by major class of receivable, such as loans, direct finance leases (as defined), and any other class of receivables. + 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 (b)(2) -URI http://asc.fasb.org/extlink&oid=84161108&loc=d3e4845-128472 + Details
Name: | us-gaap_BusinessCombinationAcquiredReceivablesGrossContractualAmount
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Details
Name: | us-gaap_BusinessAcquisitionAxis=acnb_NewWindsorMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ReceivablesAcquiredWithDeterioratedCreditQualityAxis=us-gaap_ReceivablesAcquiredWithDeterioratedCreditQualityMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |