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Orrstown Financial Services, Inc. (Parent Company Only) Financial Information - Condensed Statements of Cash Flows (Detail) (USD $) In Thousands, unless otherwise specified | 12 Months Ended
--- | ---
Dec. 31, 2014 | Dec. 31, 2013 | Dec. 31, 2012
Cash flows from operating activities: |  |  |
Net income (loss) | $ 29,142 us-gaap_NetIncomeLoss | $ 10,004 us-gaap_NetIncomeLoss | $ (38,454)us-gaap_NetIncomeLoss
Adjustments to reconcile net income (loss) to cash used in operating activities: |  |  |
Deferred income taxes | (16,223)us-gaap_IncreaseDecreaseInDeferredIncomeTaxes | 0 us-gaap_IncreaseDecreaseInDeferredIncomeTaxes | 20,384 us-gaap_IncreaseDecreaseInDeferredIncomeTaxes
Losses on sale of investment securities | (1,935)us-gaap_GainLossOnSaleOfSecuritiesNet | (332)us-gaap_GainLossOnSaleOfSecuritiesNet | (4,824)us-gaap_GainLossOnSaleOfSecuritiesNet
Share-based compensation | 190 us-gaap_ShareBasedCompensation | 129 us-gaap_ShareBasedCompensation | 23 us-gaap_ShareBasedCompensation
Other, net | 1,629 us-gaap_IncreaseDecreaseInOtherOperatingCapitalNet | 12,356 us-gaap_IncreaseDecreaseInOtherOperatingCapitalNet | (13,516)us-gaap_IncreaseDecreaseInOtherOperatingCapitalNet
Net cash provided by operating activities | 17,258 us-gaap_NetCashProvidedByUsedInOperatingActivities | 32,960 us-gaap_NetCashProvidedByUsedInOperatingActivities | 18,658 us-gaap_NetCashProvidedByUsedInOperatingActivities
Cash flows from investing activities: |  |  |
Sales of securities available for sale | 169,573 us-gaap_ProceedsFromSaleOfAvailableForSaleSecurities | 74,273 us-gaap_ProceedsFromSaleOfAvailableForSaleSecurities | 94,099 us-gaap_ProceedsFromSaleOfAvailableForSaleSecurities
Maturities of available for sale securities | 41,520 us-gaap_ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities | 86,581 us-gaap_ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities | 85,481 us-gaap_ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities
Net cash provided by (used in) investing activities | 727 us-gaap_NetCashProvidedByUsedInInvestingActivities | (89,681)us-gaap_NetCashProvidedByUsedInInvestingActivities | 195,726 us-gaap_NetCashProvidedByUsedInInvestingActivities
Cash flows from financing activities: |  |  |
Proceeds from issuance of common stock | 105 us-gaap_ProceedsFromIssuanceOfCommonStock | 253 us-gaap_ProceedsFromIssuanceOfCommonStock | 189 us-gaap_ProceedsFromIssuanceOfCommonStock
Net cash used in financing activities | (24,136)us-gaap_NetCashProvidedByUsedInFinancingActivities | (56,407)us-gaap_NetCashProvidedByUsedInFinancingActivities | (173,365)us-gaap_NetCashProvidedByUsedInFinancingActivities
Net decrease in cash | (6,151)us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease | (113,128)us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease | 41,019 us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease
Cash and cash equivalents at beginning of year | 37,560 us-gaap_CashCashEquivalentsAndFederalFundsSold | 150,688 us-gaap_CashCashEquivalentsAndFederalFundsSold | 109,669 us-gaap_CashCashEquivalentsAndFederalFundsSold
Cash and cash equivalents at end of year | 31,409 us-gaap_CashCashEquivalentsAndFederalFundsSold | 37,560 us-gaap_CashCashEquivalentsAndFederalFundsSold | 150,688 us-gaap_CashCashEquivalentsAndFederalFundsSold
Parent Company [Member] |  |  |
Cash flows from operating activities: |  |  |
Net income (loss) | 29,142 us-gaap_NetIncomeLoss / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 10,004 us-gaap_NetIncomeLoss / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | (38,454)us-gaap_NetIncomeLoss / dei_LegalEntityAxis = us-gaap_ParentCompanyMember
Adjustments to reconcile net income (loss) to cash used in operating activities: |  |  |
Deferred income taxes | (25)us-gaap_IncreaseDecreaseInDeferredIncomeTaxes / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 0 us-gaap_IncreaseDecreaseInDeferredIncomeTaxes / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 0 us-gaap_IncreaseDecreaseInDeferredIncomeTaxes / dei_LegalEntityAxis = us-gaap_ParentCompanyMember
Gains on affiliate dissolution | (54)us-gaap_GainLossOnSaleOfBusiness / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 0 us-gaap_GainLossOnSaleOfBusiness / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 0 us-gaap_GainLossOnSaleOfBusiness / dei_LegalEntityAxis = us-gaap_ParentCompanyMember
Losses on sale of investment securities | 0 us-gaap_GainLossOnSaleOfSecuritiesNet / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 0 us-gaap_GainLossOnSaleOfSecuritiesNet / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 101 us-gaap_GainLossOnSaleOfSecuritiesNet / dei_LegalEntityAxis = us-gaap_ParentCompanyMember
Equity in undistributed (income) loss of bank subsidiary | (29,932)orrf_IncomeLossFromEquityUndistributedBankSubsidiary / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | (11,019)orrf_IncomeLossFromEquityUndistributedBankSubsidiary / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 37,487 orrf_IncomeLossFromEquityUndistributedBankSubsidiary / dei_LegalEntityAxis = us-gaap_ParentCompanyMember
Share-based compensation | 17 us-gaap_ShareBasedCompensation / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 129 us-gaap_ShareBasedCompensation / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 23 us-gaap_ShareBasedCompensation / dei_LegalEntityAxis = us-gaap_ParentCompanyMember
Net change in other liabilities | (26)us-gaap_IncreaseDecreaseInOperatingLiabilities / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 62 us-gaap_IncreaseDecreaseInOperatingLiabilities / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 35 us-gaap_IncreaseDecreaseInOperatingLiabilities / dei_LegalEntityAxis = us-gaap_ParentCompanyMember
Other, net | (270)us-gaap_IncreaseDecreaseInOtherOperatingCapitalNet / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | (182)us-gaap_IncreaseDecreaseInOtherOperatingCapitalNet / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 210 us-gaap_IncreaseDecreaseInOtherOperatingCapitalNet / dei_LegalEntityAxis = us-gaap_ParentCompanyMember
Net cash provided by operating activities | (1,148)us-gaap_NetCashProvidedByUsedInOperatingActivities / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | (1,006)us-gaap_NetCashProvidedByUsedInOperatingActivities / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | (598)us-gaap_NetCashProvidedByUsedInOperatingActivities / dei_LegalEntityAxis = us-gaap_ParentCompanyMember
Cash flows from investing activities: |  |  |
Sales of securities available for sale | 0 us-gaap_ProceedsFromSaleOfAvailableForSaleSecurities / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 0 us-gaap_ProceedsFromSaleOfAvailableForSaleSecurities / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 1,109 us-gaap_ProceedsFromSaleOfAvailableForSaleSecurities / dei_LegalEntityAxis = us-gaap_ParentCompanyMember
Maturities of available for sale securities | 0 us-gaap_ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 0 us-gaap_ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 1,895 us-gaap_ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities / dei_LegalEntityAxis = us-gaap_ParentCompanyMember
Investment in bank subsidiary | (161)us-gaap_PaymentsToAcquireInvestments / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 0 us-gaap_PaymentsToAcquireInvestments / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | (4,000)us-gaap_PaymentsToAcquireInvestments / dei_LegalEntityAxis = us-gaap_ParentCompanyMember
Other | 89 us-gaap_PaymentsForProceedsFromOtherInvestingActivities / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 0 us-gaap_PaymentsForProceedsFromOtherInvestingActivities / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 0 us-gaap_PaymentsForProceedsFromOtherInvestingActivities / dei_LegalEntityAxis = us-gaap_ParentCompanyMember
Net cash provided by (used in) investing activities | (72)us-gaap_NetCashProvidedByUsedInInvestingActivities / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 0 us-gaap_NetCashProvidedByUsedInInvestingActivities / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | (996)us-gaap_NetCashProvidedByUsedInInvestingActivities / dei_LegalEntityAxis = us-gaap_ParentCompanyMember
Cash flows from financing activities: |  |  |
Dividends paid | 0 us-gaap_PaymentsOfDividendsCommonStock / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 0 us-gaap_PaymentsOfDividendsCommonStock / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 0 us-gaap_PaymentsOfDividendsCommonStock / dei_LegalEntityAxis = us-gaap_ParentCompanyMember
Proceeds from issuance of common stock | 105 us-gaap_ProceedsFromIssuanceOfCommonStock / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 253 us-gaap_ProceedsFromIssuanceOfCommonStock / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 189 us-gaap_ProceedsFromIssuanceOfCommonStock / dei_LegalEntityAxis = us-gaap_ParentCompanyMember
Net cash used in financing activities | 105 us-gaap_NetCashProvidedByUsedInFinancingActivities / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 253 us-gaap_NetCashProvidedByUsedInFinancingActivities / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 189 us-gaap_NetCashProvidedByUsedInFinancingActivities / dei_LegalEntityAxis = us-gaap_ParentCompanyMember
Net decrease in cash | (1,115)us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | (753)us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | (1,405)us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease / dei_LegalEntityAxis = us-gaap_ParentCompanyMember
Cash and cash equivalents at beginning of year | 1,504 us-gaap_CashCashEquivalentsAndFederalFundsSold / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 2,257 us-gaap_CashCashEquivalentsAndFederalFundsSold / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 3,662 us-gaap_CashCashEquivalentsAndFederalFundsSold / dei_LegalEntityAxis = us-gaap_ParentCompanyMember
Cash and cash equivalents at end of year | $ 389 us-gaap_CashCashEquivalentsAndFederalFundsSold / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | $ 1,504 us-gaap_CashCashEquivalentsAndFederalFundsSold / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | $ 2,257 us-gaap_CashCashEquivalentsAndFederalFundsSold / dei_LegalEntityAxis = us-gaap_ParentCompanyMember

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- Definition The cash inflow associated with maturities (principal being due), prepayments and calls (requests of early payments) on securities not classified as either held-to-maturity securities or trading securities which are classified as available-for-sale securities. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Investing Activities -URI http://asc.fasb.org/extlink&oid=6516133 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 45 -Paragraph 11 -URI http://asc.fasb.org/extlink&oid=6871852&loc=d3e26853-111562 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 12 -Subparagraph (a),(b) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3179-108585 + Details
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- Definition The cash inflow associated with the sale of debt and equity securities classified as available-for-sale securities. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Investing Activities -URI http://asc.fasb.org/extlink&oid=6516133 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 45 -Paragraph 11 -URI http://asc.fasb.org/extlink&oid=6871852&loc=d3e26853-111562 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 12 -Subparagraph (a),(b) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3179-108585 + Details
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- Definition The aggregate amount of noncash, equity-based employee remuneration. This may include the value of stock or unit options, amortization of restricted stock or units, and adjustment for officers' compensation. As noncash, this element is an add back when calculating net cash generated by operating activities using the indirect method. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3602-108585 + Details
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