XML 43 R47.htm IDEA: XBRL DOCUMENT
v2.4.1.9

Acquisitions - Additional Information (Detail) (USD $) | 0 Months Ended | 3 Months Ended | 12 Months Ended | 0 Months Ended | 1 Months Ended | 0 Months Ended |  |
--- | --- | --- | --- | --- | --- | --- | --- | ---
Aug. 12, 2014 | Dec. 31, 2014 | Sep. 30, 2014 | Jun. 30, 2014 | Mar. 31, 2014 | Dec. 31, 2013 | Sep. 30, 2013 | Jun. 30, 2013 | Mar. 31, 2013 | Dec. 31, 2014 | Dec. 31, 2013 Entity | Dec. 31, 2012 Entity | Nov. 05, 2013 | Mar. 11, 2013 | Sep. 18, 2012 | May 24, 2012 | Feb. 13, 2012 | Dec. 31, 2011 | Sep. 18, 2014
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business acquisition cash paid | $ 205,100,000 us-gaap_PaymentsToAcquireBusinessesGross |  |  |  |  |  |  |  |  |  |  | $ 641,700,000 us-gaap_PaymentsToAcquireBusinessesGross |  |  |  |  |  |  |
Additional borrowing |  |  |  |  |  |  |  |  |  | 169,500,000 us-gaap_ProceedsFromLinesOfCredit | 40,000,000 us-gaap_ProceedsFromLinesOfCredit | 119,000,000 us-gaap_ProceedsFromLinesOfCredit |  |  |  |  |  |  |
Acquisition related transaction expenses |  |  |  |  |  |  |  |  |  | 2,700,000 us-gaap_BusinessCombinationAcquisitionRelatedCosts |  |  |  |  |  |  |  |  |
Operating income |  | 79,271,000 us-gaap_OperatingIncomeLoss | 31,869,000 us-gaap_OperatingIncomeLoss | 26,741,000 us-gaap_OperatingIncomeLoss | 291,000 us-gaap_OperatingIncomeLoss | 85,980,000 us-gaap_OperatingIncomeLoss | 29,555,000 us-gaap_OperatingIncomeLoss | 11,522,000 us-gaap_OperatingIncomeLoss | (4,009,000)us-gaap_OperatingIncomeLoss | 138,172,000 us-gaap_OperatingIncomeLoss | 123,048,000 us-gaap_OperatingIncomeLoss | 74,372,000 us-gaap_OperatingIncomeLoss |  |  |  |  |  |  |
Total Purchase Price |  |  |  |  |  |  |  |  |  |  | 378,100,000 us-gaap_BusinessCombinationConsiderationTransferred1 |  |  |  |  |  |  |  |
Number of businesses acquired |  |  |  |  |  |  |  |  |  |  | 3 us-gaap_NumberOfBusinessesAcquired | 3 us-gaap_NumberOfBusinessesAcquired |  |  |  |  |  |  |
Goodwill |  | 781,163,000 us-gaap_Goodwill |  |  |  | 669,217,000 us-gaap_Goodwill |  |  |  | 781,163,000 us-gaap_Goodwill | 669,217,000 us-gaap_Goodwill |  |  |  |  |  |  | 501,141,000 us-gaap_Goodwill |
Issuance of shares from treasury stock for acquisition of S1 Corporation |  |  |  |  |  |  |  |  |  |  |  | 286,500 aciw_TreasuryStockReissuedInAcquisitionShares |  |  |  |  |  |  |
Realized gain on available-for-sale securities |  |  |  |  |  |  |  |  |  |  |  | 1,557,000 us-gaap_AvailableForSaleSecuritiesGrossRealizedGainLossNet |  |  |  |  |  |  |
Term credit facility |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Additional borrowing | 150,000,000 us-gaap_ProceedsFromLinesOfCredit / us-gaap_DebtInstrumentAxis = aciw_TermCreditFacilityMember |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Revolving Credit Facility |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Additional borrowing | 60,500,000 us-gaap_ProceedsFromLinesOfCredit / us-gaap_LineOfCreditFacilityAxis = us-gaap_RevolvingCreditFacilityMember |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Profesionales en Transacciones Electronicas S.A. - Venezuela ("PTESA-V") |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Percentage of ownership interest acquired |  |  |  |  |  |  |  |  | 100.00%us-gaap_BusinessAcquisitionPercentageOfVotingInterestsAcquired / us-gaap_BusinessAcquisitionAxis = aciw_ProfesionalesEnTransaccionesElectronicasVenezuelaMember |  |  |  |  |  |  |  |  |  |
Profesionales en Transacciones Electronicas S.A. - Ecuador ("PTESA-E") |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Percentage of ownership interest acquired |  |  |  |  |  |  |  |  | 100.00%us-gaap_BusinessAcquisitionPercentageOfVotingInterestsAcquired / us-gaap_BusinessAcquisitionAxis = aciw_ProfesionalesEnTransaccionesElectronicasEcuadorMember |  |  |  |  |  |  |  |  |  |
Profesionales En Transacciones Electronicas Venezuela And Ecuador |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Total Purchase Price |  |  |  |  |  |  |  |  | 2,800,000 us-gaap_BusinessCombinationConsiderationTransferred1 / us-gaap_BusinessAcquisitionAxis = aciw_ProfesionalesEnTransaccionesElectronicasVenezuelaAndEcuadorMember |  |  |  |  |  |  |  |  |  |
Profesionales en Transacciones Electronicas S.A. - Colombia ("PTESA-C") |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Total Purchase Price |  |  |  |  |  |  |  |  | 11,400,000 us-gaap_BusinessCombinationConsiderationTransferred1 / us-gaap_BusinessAcquisitionAxis = aciw_ProfesionalesEnTransaccionesElectronicasColombiaMember |  |  |  |  |  |  |  |  |  |
Profesionales en Transacciones Electronicas S.A |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Total Purchase Price |  |  |  |  |  |  |  |  | 14,200,000 us-gaap_BusinessCombinationConsiderationTransferred1 / us-gaap_BusinessAcquisitionAxis = aciw_ProfesionalesEnTransaccionesElectronicasMember |  |  |  |  |  |  |  |  |  |
Goodwill |  | 7,113,000 us-gaap_Goodwill / us-gaap_BusinessAcquisitionAxis = aciw_ProfesionalesEnTransaccionesElectronicasMember |  |  |  |  |  |  |  | 7,113,000 us-gaap_Goodwill / us-gaap_BusinessAcquisitionAxis = aciw_ProfesionalesEnTransaccionesElectronicasMember |  |  |  |  |  |  |  |  |
Purchase price, non tax deductible goodwill amount |  |  |  |  |  |  |  |  | 1,500,000 aciw_BusinessAcquisitionPurchasePriceAllocationGoodwillNontaxDeductibleAmount / us-gaap_BusinessAcquisitionAxis = aciw_ProfesionalesEnTransaccionesElectronicasMember |  |  |  |  |  |  |  |  |  |
Retail Decisions [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Revenue |  |  |  |  |  |  |  |  |  | 17,900,000 us-gaap_Revenues / us-gaap_BusinessAcquisitionAxis = aciw_RetailDecisionsMember |  |  |  |  |  |  |  |  |
Operating income |  |  |  |  |  |  |  |  |  | 1,900,000 us-gaap_OperatingIncomeLoss / us-gaap_BusinessAcquisitionAxis = aciw_RetailDecisionsMember |  |  |  |  |  |  |  |  |
Goodwill |  | 135,643,000 us-gaap_Goodwill / us-gaap_BusinessAcquisitionAxis = aciw_RetailDecisionsMember |  |  |  |  |  |  |  | 135,643,000 us-gaap_Goodwill / us-gaap_BusinessAcquisitionAxis = aciw_RetailDecisionsMember |  |  |  |  |  |  |  |  |
Official Payments Holdings, Inc. |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business acquisition cash paid |  |  |  |  |  |  |  |  |  |  |  |  | 139,800,000 us-gaap_PaymentsToAcquireBusinessesGross / us-gaap_BusinessAcquisitionAxis = aciw_OfficialPaymentsHoldingsIncMember |  |  |  |  |  |
Additional borrowing |  |  |  |  |  |  |  |  |  |  |  |  | 40,000,000 us-gaap_ProceedsFromLinesOfCredit / us-gaap_BusinessAcquisitionAxis = aciw_OfficialPaymentsHoldingsIncMember |  |  |  |  |  |
Acquisition related transaction expenses |  |  |  |  |  |  |  |  |  |  | 1,200,000 us-gaap_BusinessCombinationAcquisitionRelatedCosts / us-gaap_BusinessAcquisitionAxis = aciw_OfficialPaymentsHoldingsIncMember |  |  |  |  |  |  |  |
Revenue |  |  |  |  |  |  |  |  |  | 135,700,000 us-gaap_Revenues / us-gaap_BusinessAcquisitionAxis = aciw_OfficialPaymentsHoldingsIncMember | 23,300,000 us-gaap_Revenues / us-gaap_BusinessAcquisitionAxis = aciw_OfficialPaymentsHoldingsIncMember |  |  |  |  |  |  |  |
Cash paid per common stock |  |  |  |  |  |  |  |  |  |  |  |  | $ 8.35 us-gaap_BusinessAcquisitionSharePrice / us-gaap_BusinessAcquisitionAxis = aciw_OfficialPaymentsHoldingsIncMember |  |  |  |  |  |
Goodwill |  | 29,236,000 us-gaap_Goodwill / us-gaap_BusinessAcquisitionAxis = aciw_OfficialPaymentsHoldingsIncMember |  |  |  | 29,200,000 us-gaap_Goodwill / us-gaap_BusinessAcquisitionAxis = aciw_OfficialPaymentsHoldingsIncMember |  |  |  | 29,236,000 us-gaap_Goodwill / us-gaap_BusinessAcquisitionAxis = aciw_OfficialPaymentsHoldingsIncMember | 29,200,000 us-gaap_Goodwill / us-gaap_BusinessAcquisitionAxis = aciw_OfficialPaymentsHoldingsIncMember |  |  |  |  |  |  |  |
Online Resources Corporation |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Acquisition related transaction expenses |  |  |  |  |  |  |  |  |  |  | 5,400,000 us-gaap_BusinessCombinationAcquisitionRelatedCosts / us-gaap_BusinessAcquisitionAxis = aciw_OnlineResourcesCorporationMember |  |  |  |  |  |  |  |
Revenue |  |  |  |  |  |  |  |  |  | 151,300,000 us-gaap_Revenues / us-gaap_BusinessAcquisitionAxis = aciw_OnlineResourcesCorporationMember | 120,800,000 us-gaap_Revenues / us-gaap_BusinessAcquisitionAxis = aciw_OnlineResourcesCorporationMember |  |  |  |  |  |  |  |
Operating income |  |  |  |  |  |  |  |  |  |  | 6,400,000 us-gaap_OperatingIncomeLoss / us-gaap_BusinessAcquisitionAxis = aciw_OnlineResourcesCorporationMember |  |  |  |  |  |  |  |
Total Purchase Price |  |  |  |  |  |  |  |  |  |  |  |  |  | 260,100,000 us-gaap_BusinessCombinationConsiderationTransferred1 / us-gaap_BusinessAcquisitionAxis = aciw_OnlineResourcesCorporationMember |  |  |  |  |
Cash paid per common stock |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 3.85 us-gaap_BusinessAcquisitionSharePrice / us-gaap_BusinessAcquisitionAxis = aciw_OnlineResourcesCorporationMember |  |  |  |  |
Goodwill |  | 122,247,000 us-gaap_Goodwill / us-gaap_BusinessAcquisitionAxis = aciw_OnlineResourcesCorporationMember |  |  |  |  |  |  |  | 122,247,000 us-gaap_Goodwill / us-gaap_BusinessAcquisitionAxis = aciw_OnlineResourcesCorporationMember |  |  |  |  |  |  |  |  |
Business acquisition common stock purchase price |  |  |  |  |  |  |  |  |  |  |  |  |  | 132,900,000 aciw_BusinessAcquisitionCommonSharesValue / us-gaap_BusinessAcquisitionAxis = aciw_OnlineResourcesCorporationMember |  |  |  |  |
Distra Pty Ltd |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business acquisition cash paid |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 49,800,000 us-gaap_PaymentsToAcquireBusinessesGross / us-gaap_BusinessAcquisitionAxis = aciw_DistraPtyLtdMember |  |  |  |
Goodwill |  |  |  |  |  | 21,307,000 us-gaap_Goodwill / us-gaap_BusinessAcquisitionAxis = aciw_DistraPtyLtdMember |  |  |  |  | 21,307,000 us-gaap_Goodwill / us-gaap_BusinessAcquisitionAxis = aciw_DistraPtyLtdMember |  |  |  |  |  |  |  |
Percentage of ownership interest acquired |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 100.00%us-gaap_BusinessAcquisitionPercentageOfVotingInterestsAcquired / us-gaap_BusinessAcquisitionAxis = aciw_DistraPtyLtdMember
North Data Uruguay S.A. |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Total Purchase Price |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 4,600,000 us-gaap_BusinessCombinationConsiderationTransferred1 / us-gaap_BusinessAcquisitionAxis = aciw_NorthDataMember |  |  |
Goodwill |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 3,500,000 us-gaap_Goodwill / us-gaap_BusinessAcquisitionAxis = aciw_NorthDataMember |  |  |
Business acquisition, cash acquired |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 100,000 us-gaap_CashAcquiredFromAcquisition / us-gaap_BusinessAcquisitionAxis = aciw_NorthDataMember |  |  |
S1 Corporation |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business acquisition cash paid |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 368,700,000 us-gaap_PaymentsToAcquireBusinessesGross / us-gaap_BusinessAcquisitionAxis = aciw_SOneCorporationMember |  |
Acquisition related transaction expenses |  |  |  |  |  |  |  |  |  |  |  | 6,100,000 us-gaap_BusinessCombinationAcquisitionRelatedCosts / us-gaap_BusinessAcquisitionAxis = aciw_SOneCorporationMember |  |  |  |  |  |  |
Revenue |  |  |  |  |  |  |  |  |  |  |  | 161,900,000 us-gaap_Revenues / us-gaap_BusinessAcquisitionAxis = aciw_SOneCorporationMember |  |  |  |  |  |  |
Operating income |  |  |  |  |  |  |  |  |  |  |  | (6,900,000)us-gaap_OperatingIncomeLoss / us-gaap_BusinessAcquisitionAxis = aciw_SOneCorporationMember |  |  |  |  |  |  |
Total Purchase Price |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 587,284,000 us-gaap_BusinessCombinationConsiderationTransferred1 / us-gaap_BusinessAcquisitionAxis = aciw_SOneCorporationMember |  |
Goodwill |  |  |  |  |  | 256,244,000 us-gaap_Goodwill / us-gaap_BusinessAcquisitionAxis = aciw_SOneCorporationMember |  |  |  |  | 256,244,000 us-gaap_Goodwill / us-gaap_BusinessAcquisitionAxis = aciw_SOneCorporationMember |  |  |  |  |  |  |  |
Acquisition transaction paid in shares |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 5,900,000 us-gaap_BusinessAcquisitionEquityInterestsIssuedOrIssuableNumberOfSharesIssued / us-gaap_BusinessAcquisitionAxis = aciw_SOneCorporationMember |  |
Issuance of shares from treasury stock for acquisition of S1 Corporation |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 95,500 aciw_TreasuryStockReissuedInAcquisitionShares / us-gaap_BusinessAcquisitionAxis = aciw_SOneCorporationMember |  |
Cash price per share S1 stockholders could elect to receive for one share of S1 stock |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 10.00 aciw_BusinessAcquisitionCashPricePerShare / us-gaap_BusinessAcquisitionAxis = aciw_SOneCorporationMember |  |
Pro-Rata share of the Company stock a S1 stockholder could elect to receive for one share of S1 stock |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 0.3148 aciw_BusinessAcquisitionCostOfAcquiredEntityStockPerShare / us-gaap_BusinessAcquisitionAxis = aciw_SOneCorporationMember |  |
Proration of exchange percentage of S1 share |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 33.80%aciw_BusinessAcquisitionProrationOfExchangePercentageOfAggregateSharesOfAcquiredEntityForSharesOfEntity / us-gaap_BusinessAcquisitionAxis = aciw_SOneCorporationMember |  |
Proration of exchange percentage, S1 share for cash |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 66.20%aciw_BusinessAcquisitionProrationOfExchangePercentageOfAggregateSharesOfAcquiredEntityForCashOfEntity / us-gaap_BusinessAcquisitionAxis = aciw_SOneCorporationMember |  |
Share price used to calculate cash payment for fractional shares |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 34.14 aciw_BusinessAcquisitionCostOfAcquiredEntitySharesDistributedStockPrice / us-gaap_BusinessAcquisitionAxis = aciw_SOneCorporationMember |  |
Realized gain on available-for-sale securities |  |  |  |  |  |  |  |  |  |  |  | 1,600,000 us-gaap_AvailableForSaleSecuritiesGrossRealizedGainLossNet / us-gaap_BusinessAcquisitionAxis = aciw_SOneCorporationMember |  |  |  |  |  |  |
Acquisition transaction paid in cash |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 73,700,000 aciw_BusinessAcquisitionAvailableCashAndCashEquivalentsToBeUsedForPurchase / us-gaap_BusinessAcquisitionAxis = aciw_SOneCorporationMember |  |
Customer relationships | Profesionales en Transacciones Electronicas S.A |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Amortizable intangible assets |  | 7,732,000 us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibles / us-gaap_BusinessAcquisitionAxis = aciw_ProfesionalesEnTransaccionesElectronicasMember / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_CustomerRelationshipsMember |  |  |  |  |  |  |  | 7,732,000 us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibles / us-gaap_BusinessAcquisitionAxis = aciw_ProfesionalesEnTransaccionesElectronicasMember / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_CustomerRelationshipsMember |  |  |  |  |  |  |  |  |
Customer relationships | Retail Decisions [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Amortizable intangible assets |  | 50,480,000 us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibles / us-gaap_BusinessAcquisitionAxis = aciw_RetailDecisionsMember / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_CustomerRelationshipsMember |  |  |  |  |  |  |  | 50,480,000 us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibles / us-gaap_BusinessAcquisitionAxis = aciw_RetailDecisionsMember / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_CustomerRelationshipsMember |  |  |  |  |  |  |  |  |
Acquired intangible assets, weighted-average useful lives |  |  |  |  |  |  |  |  |  | 18 years |  |  |  |  |  |  |  |  |
Customer relationships | Official Payments Holdings, Inc. |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Amortizable intangible assets |  | 47,400,000 us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibles / us-gaap_BusinessAcquisitionAxis = aciw_OfficialPaymentsHoldingsIncMember / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_CustomerRelationshipsMember |  |  |  | 47,400,000 us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibles / us-gaap_BusinessAcquisitionAxis = aciw_OfficialPaymentsHoldingsIncMember / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_CustomerRelationshipsMember |  |  |  | 47,400,000 us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibles / us-gaap_BusinessAcquisitionAxis = aciw_OfficialPaymentsHoldingsIncMember / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_CustomerRelationshipsMember | 47,400,000 us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibles / us-gaap_BusinessAcquisitionAxis = aciw_OfficialPaymentsHoldingsIncMember / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_CustomerRelationshipsMember |  |  |  |  |  |  |  |
Customer relationships | Online Resources Corporation |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Amortizable intangible assets |  | 68,750,000 us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibles / us-gaap_BusinessAcquisitionAxis = aciw_OnlineResourcesCorporationMember / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_CustomerRelationshipsMember |  |  |  |  |  |  |  | 68,750,000 us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibles / us-gaap_BusinessAcquisitionAxis = aciw_OnlineResourcesCorporationMember / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_CustomerRelationshipsMember |  |  |  |  |  |  |  |  |
Customer relationships | Distra Pty Ltd |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Amortizable intangible assets |  |  |  |  |  | 6,200,000 us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibles / us-gaap_BusinessAcquisitionAxis = aciw_DistraPtyLtdMember / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_CustomerRelationshipsMember |  |  |  |  | 6,200,000 us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibles / us-gaap_BusinessAcquisitionAxis = aciw_DistraPtyLtdMember / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_CustomerRelationshipsMember |  |  |  |  |  |  |  |
Customer relationships | North Data Uruguay S.A. |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Amortizable intangible assets |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 2,200,000 us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibles / us-gaap_BusinessAcquisitionAxis = aciw_NorthDataMember / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_CustomerRelationshipsMember |  |  |
Acquired intangible assets, weighted-average useful lives |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 12 years 7 months 6 days |  |  |
Customer relationships | S1 Corporation |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Amortizable intangible assets |  |  |  |  |  | 108,690,000 us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibles / us-gaap_BusinessAcquisitionAxis = aciw_SOneCorporationMember / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_CustomerRelationshipsMember |  |  |  |  | 108,690,000 us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibles / us-gaap_BusinessAcquisitionAxis = aciw_SOneCorporationMember / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_CustomerRelationshipsMember |  |  |  |  |  |  |  |
Maximum | Official Payments Holdings, Inc. |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Operating income |  |  |  |  |  |  |  |  |  |  | (100,000)us-gaap_OperatingIncomeLoss / us-gaap_BusinessAcquisitionAxis = aciw_OfficialPaymentsHoldingsIncMember / us-gaap_RangeAxis = us-gaap_MaximumMember |  |  |  |  |  |  |  |
Maximum | Customer relationships | Profesionales en Transacciones Electronicas S.A |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Acquired intangible assets, weighted-average useful lives |  |  |  |  |  |  |  |  |  | 15 years |  |  |  |  |  |  |  |  |
Maximum | Customer relationships | Official Payments Holdings, Inc. |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Acquired intangible assets, weighted-average useful lives |  |  |  |  |  |  |  |  |  | 15 years |  |  |  |  |  |  |  |  |
Maximum | Customer relationships | Online Resources Corporation |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Acquired intangible assets, weighted-average useful lives |  |  |  |  |  |  |  |  |  | 15 years |  |  |  |  |  |  |  |  |
Maximum | Customer relationships | Distra Pty Ltd |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Acquired intangible assets, weighted-average useful lives |  |  |  |  |  |  |  |  |  |  | 20 years |  |  |  |  |  |  |  |
Maximum | Customer relationships | S1 Corporation |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Acquired intangible assets, weighted-average useful lives |  |  |  |  |  |  |  |  |  |  | 20 years |  |  |  |  |  |  |  |
Series A-1 Convertible Preferred Stock | Online Resources Corporation |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business acquisition preferred stock purchase price |  |  |  |  |  |  |  |  |  |  |  |  |  | 127,200,000 aciw_BusinessAcquisitionPreferredSharesValue / us-gaap_BusinessAcquisitionAxis = aciw_OnlineResourcesCorporationMember / us-gaap_StatementClassOfStockAxis = aciw_SeriesAOnePreferredStockMember |  |  |  |  |
Available-for-sale Securities | S1 Corporation |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Issuance of shares for acquisition of S1 Corporation |  |  |  |  |  |  |  |  |  |  |  | 1,107,000 aciw_BusinessAcquisitionNumberOfSharePreviouslyHeld / us-gaap_BusinessAcquisitionAxis = aciw_SOneCorporationMember / us-gaap_InformationByFinancialStatementLineItemAxis = us-gaap_AvailableforsaleSecuritiesMember |  |  |  |  |  |  |
New Senior Secured Credit Facilities |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Additional borrowings under credit facility |  |  |  |  |  |  |  |  |  | 300,000,000 us-gaap_ProceedsFromSecuredLinesOfCredit / us-gaap_LongtermDebtTypeAxis = aciw_NewSeniorSecuredCreditFacilitiesMember |  |  |  |  |  |  |  |  |
New Senior Secured Credit Facilities | S1 Corporation |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Additional borrowings under credit facility |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 295,000,000 us-gaap_ProceedsFromSecuredLinesOfCredit / us-gaap_BusinessAcquisitionAxis = aciw_SOneCorporationMember / us-gaap_LongtermDebtTypeAxis = aciw_NewSeniorSecuredCreditFacilitiesMember |  |

X
- Definition Cash and cash equivalents on hand that the Company used to fund a portion of the purchase price. + References No definition available. + Details
Name: | aciw_BusinessAcquisitionAvailableCashAndCashEquivalentsToBeUsedForPurchase
Namespace Prefix: | aciw_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Business acquisition cash price per share. + References No definition available. + Details
Name: | aciw_BusinessAcquisitionCashPricePerShare
Namespace Prefix: | aciw_
Data Type: | num:perShareItemType
Balance Type: | na
Period Type: | instant

X
- Definition For an acquired entity, total price of the common shares that were acquired. + References No definition available. + Details
Name: | aciw_BusinessAcquisitionCommonSharesValue
Namespace Prefix: | aciw_
Data Type: | xbrli:monetaryItemType
Balance Type: | na
Period Type: | duration

X
- Definition Business Acquisition, Cost of Acquired Entity, Shares Distributed Stock Price + References No definition available. + Details
Name: | aciw_BusinessAcquisitionCostOfAcquiredEntitySharesDistributedStockPrice
Namespace Prefix: | aciw_
Data Type: | num:perShareItemType
Balance Type: | na
Period Type: | instant

X
- Definition Prorata share of the Company stock a S1 stockholder could elect to receive for one share of S1 stock. + References No definition available. + Details
Name: | aciw_BusinessAcquisitionCostOfAcquiredEntityStockPerShare
Namespace Prefix: | aciw_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | instant

X
- Definition The number of shares of S1 Corporation the Company held as available-for-sale prior to the acquisition. + References No definition available. + Details
Name: | aciw_BusinessAcquisitionNumberOfSharePreviouslyHeld
Namespace Prefix: | aciw_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | instant

X
- Definition For an acquired entity, total price of the preferred shares that were acquired. + References No definition available. + Details
Name: | aciw_BusinessAcquisitionPreferredSharesValue
Namespace Prefix: | aciw_
Data Type: | xbrli:monetaryItemType
Balance Type: | na
Period Type: | duration

X
- Definition Business Acquisition, Proration of Exchange Percentage of Aggregate Shares of Acquired Entity for Cash + References No definition available. + Details
Name: | aciw_BusinessAcquisitionProrationOfExchangePercentageOfAggregateSharesOfAcquiredEntityForCashOfEntity
Namespace Prefix: | aciw_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Business Acquisition, Proration of Exchange Percentage of Aggregate Shares of Acquired Entity for Shares of the Entity + References No definition available. + Details
Name: | aciw_BusinessAcquisitionProrationOfExchangePercentageOfAggregateSharesOfAcquiredEntityForSharesOfEntity
Namespace Prefix: | aciw_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Portion of goodwill acquired in business combination that is not deductible for tax purposes. + References No definition available. + Details
Name: | aciw_BusinessAcquisitionPurchasePriceAllocationGoodwillNontaxDeductibleAmount
Namespace Prefix: | aciw_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Number of Treasury shares issued during the period pursuant to acquisitions. + References No definition available. + Details
Name: | aciw_TreasuryStockReissuedInAcquisitionShares
Namespace Prefix: | aciw_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Definition Weighted average amortization period of finite-lived intangible assets acquired either individually or as part of a group of assets, 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 350 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (a)(3) -URI http://asc.fasb.org/extlink&oid=26713463&loc=d3e16265-109275 + Details
Name: | us-gaap_AcquiredFiniteLivedIntangibleAssetsWeightedAverageUsefulLife
Namespace Prefix: | us-gaap_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition This item represents the difference between the gross realized gains and losses realized on the sale of debt or equity securities categorized neither as held-to-maturity nor trading securities. Additionally, this item would include any losses recognized for other than temporary impairments (OTTI) of the subject investments in debt and equity securities. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 9 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=27724398&loc=d3e27357-111563 + Details
Name: | us-gaap_AvailableForSaleSecuritiesGrossRealizedGainLossNet
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Number of shares of equity interests issued or issuable to acquire entity. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (b)(4) -URI http://asc.fasb.org/extlink&oid=35744584&loc=d3e6927-128479 + Details
Name: | us-gaap_BusinessAcquisitionEquityInterestsIssuedOrIssuableNumberOfSharesIssued
Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

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

X
- Definition Percentage of voting equity interests acquired at the acquisition date in the business combination. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=25497992&loc=d3e1392-128463 + Details
Name: | us-gaap_BusinessAcquisitionPercentageOfVotingInterestsAcquired
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Price of a single share of a number of saleable stocks paid or offered to be paid in a business combination. + References No definition available. + Details
Name: | us-gaap_BusinessAcquisitionSharePrice
Namespace Prefix: | us-gaap_
Data Type: | num:perShareItemType
Balance Type: | na
Period Type: | instant

X
- 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=34752592&loc=d3e1043-128460 + Details
Name: | us-gaap_BusinessCombinationAcquisitionRelatedCosts
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amount of consideration transferred, consisting of acquisition-date fair value of assets transferred by the acquirer, liabilities incurred by the acquirer, and equity interest issued by the acquirer. + 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 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=35744584&loc=d3e6927-128479 + Details
Name: | us-gaap_BusinessCombinationConsiderationTransferred1
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition The amount of identifiable intangible assets recognized as of 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=39739317&loc=d3e4845-128472 Reference 2: 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=35744172&loc=d3e2207-128464 + Details
Name: | us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibles
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition The cash inflow associated with the acquisition of business during the period (for example, cash that was held by the acquired business). + 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 230 -SubTopic 10 -Section 45 -Paragraph 12 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3179-108585 + Details
Name: | us-gaap_CashAcquiredFromAcquisition
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6388280&loc=d3e13770-109266 + Details
Name: | us-gaap_Goodwill
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition The number of businesses acquired by the entity during the period. + References No definition available. + Details
Name: | us-gaap_NumberOfBusinessesAcquired
Namespace Prefix: | us-gaap_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition The net result for the period of deducting operating expenses from operating revenues. + References No definition available. + Details
Name: | us-gaap_OperatingIncomeLoss
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition The cash outflow associated with the acquisition of business during the period. The cash portion only of the acquisition price. + 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 230 -SubTopic 10 -Section 45 -Paragraph 13 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3213-108585 + Details
Name: | us-gaap_PaymentsToAcquireBusinessesGross
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Amount of cash inflow from contractual arrangement with the lender, including but not limited to, letter of credit, standby letter of credit and revolving credit arrangements. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(f)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 08 -Paragraph f -Article 4 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Financing Activities -URI http://asc.fasb.org/extlink&oid=6513228 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 14 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3255-108585 + Details
Name: | us-gaap_ProceedsFromLinesOfCredit
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition The cash inflow from a contractual arrangement with the lender, including letter of credit, standby letter of credit and revolving credit arrangements, under which borrowings can be made up to a specific amount at any point in time with either short term or long term maturity that is collateralized (backed by pledge, mortgage or other lien in the entity's assets). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Financing Activities -URI http://asc.fasb.org/extlink&oid=6513228 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 14 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3255-108585 + Details
Name: | us-gaap_ProceedsFromSecuredLinesOfCredit
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.1) -URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 1 -Article 5 + Details
Name: | us-gaap_Revenues
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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

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

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

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

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

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

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

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

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

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

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

X
- Details
Name: | us-gaap_DebtInstrumentAxis=aciw_TermCreditFacilityMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis=us-gaap_CustomerRelationshipsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_InformationByFinancialStatementLineItemAxis=us-gaap_AvailableforsaleSecuritiesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_LineOfCreditFacilityAxis=us-gaap_RevolvingCreditFacilityMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_LongtermDebtTypeAxis=aciw_NewSeniorSecuredCreditFacilitiesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RangeAxis=us-gaap_MaximumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementClassOfStockAxis=aciw_SeriesAOnePreferredStockMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |