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Preliminary Purchase Price Allocation of Official Payments Holdings, Online Resources Corporation and PTESA (Detail) (USD $) In Thousands, unless otherwise specified | 12 Months Ended |  |
--- | --- | --- | ---
Dec. 31, 2014 | Dec. 31, 2013 | Dec. 31, 2011
Business Acquisition [Line Items] |  |  |
Goodwill | 781,163 us-gaap_Goodwill | $ 669,217 us-gaap_Goodwill | $ 501,141 us-gaap_Goodwill
Retail Decisions [Member] |  |  |
Business Acquisition [Line Items] |  |  |
Cash and cash equivalents | 795 us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCashAndEquivalents / us-gaap_BusinessAcquisitionAxis = aciw_RetailDecisionsMember |  |
Billed and accrued receivables, net | 10,126 us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsReceivables / us-gaap_BusinessAcquisitionAxis = aciw_RetailDecisionsMember |  |
Deferred income taxes, net | 250 us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedDeferredTaxAssetsCurrent / us-gaap_BusinessAcquisitionAxis = aciw_RetailDecisionsMember |  |
Other current assets | 9,932 us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsPrepaidExpenseAndOtherAssets / us-gaap_BusinessAcquisitionAxis = aciw_RetailDecisionsMember |  |
Total current assets acquired | 21,103 us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssets / us-gaap_BusinessAcquisitionAxis = aciw_RetailDecisionsMember |  |
Property and equipment | 3,354 us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedPropertyPlantAndEquipment / us-gaap_BusinessAcquisitionAxis = aciw_RetailDecisionsMember |  |
Goodwill | 135,643 us-gaap_Goodwill / us-gaap_BusinessAcquisitionAxis = aciw_RetailDecisionsMember |  |
Deferred income taxes | 1,622 us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedDeferredTaxAssetsNoncurrent / us-gaap_BusinessAcquisitionAxis = aciw_RetailDecisionsMember |  |
Other noncurrent assets | 416 us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedOtherNoncurrentAssets / us-gaap_BusinessAcquisitionAxis = aciw_RetailDecisionsMember |  |
Total assets acquired | 249,734 us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssets / us-gaap_BusinessAcquisitionAxis = aciw_RetailDecisionsMember |  |
Accounts payable | 4,624 us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesAccountsPayable / us-gaap_BusinessAcquisitionAxis = aciw_RetailDecisionsMember |  |
Accrued employee compensation | 7,289 aciw_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAccruedEmployeeCompensation / us-gaap_BusinessAcquisitionAxis = aciw_RetailDecisionsMember |  |
Other current liabilities | 6,168 us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesOther / us-gaap_BusinessAcquisitionAxis = aciw_RetailDecisionsMember |  |
Total current liabilities acquired | 18,081 us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilities / us-gaap_BusinessAcquisitionAxis = aciw_RetailDecisionsMember |  |
Deferred income taxes, net | 26,404 us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedDeferredTaxLiabilitiesNoncurrent / us-gaap_BusinessAcquisitionAxis = aciw_RetailDecisionsMember |  |
Other noncurrent liabilities acquired | 164 us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNoncurrentLiabilitiesOther / us-gaap_BusinessAcquisitionAxis = aciw_RetailDecisionsMember |  |
Total liabilities acquired | 44,649 us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilities / us-gaap_BusinessAcquisitionAxis = aciw_RetailDecisionsMember |  |
Net assets acquired | 205,085 us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet / us-gaap_BusinessAcquisitionAxis = aciw_RetailDecisionsMember |  |
Official Payments Holdings, Inc. |  |  |
Business Acquisition [Line Items] |  |  |
Cash and cash equivalents | 25,871 us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCashAndEquivalents / us-gaap_BusinessAcquisitionAxis = aciw_OfficialPaymentsHoldingsIncMember |  |
Billed and accrued receivables, net | 2,858 us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsReceivables / us-gaap_BusinessAcquisitionAxis = aciw_OfficialPaymentsHoldingsIncMember |  |
Deferred income taxes, net | 4,692 us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedDeferredTaxAssetsCurrent / us-gaap_BusinessAcquisitionAxis = aciw_OfficialPaymentsHoldingsIncMember |  |
Other current assets | 27,642 us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsPrepaidExpenseAndOtherAssets / us-gaap_BusinessAcquisitionAxis = aciw_OfficialPaymentsHoldingsIncMember |  |
Total current assets acquired | 61,063 us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssets / us-gaap_BusinessAcquisitionAxis = aciw_OfficialPaymentsHoldingsIncMember |  |
Property and equipment | 6,340 us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedPropertyPlantAndEquipment / us-gaap_BusinessAcquisitionAxis = aciw_OfficialPaymentsHoldingsIncMember |  |
Goodwill | 29,236 us-gaap_Goodwill / us-gaap_BusinessAcquisitionAxis = aciw_OfficialPaymentsHoldingsIncMember | 29,200 us-gaap_Goodwill / us-gaap_BusinessAcquisitionAxis = aciw_OfficialPaymentsHoldingsIncMember |
Other noncurrent assets | 19,178 us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedOtherNoncurrentAssets / us-gaap_BusinessAcquisitionAxis = aciw_OfficialPaymentsHoldingsIncMember |  |
Total assets acquired | 192,342 us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssets / us-gaap_BusinessAcquisitionAxis = aciw_OfficialPaymentsHoldingsIncMember |  |
Accounts payable | 9,414 us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesAccountsPayable / us-gaap_BusinessAcquisitionAxis = aciw_OfficialPaymentsHoldingsIncMember |  |
Accrued employee compensation | 15,006 aciw_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAccruedEmployeeCompensation / us-gaap_BusinessAcquisitionAxis = aciw_OfficialPaymentsHoldingsIncMember |  |
Other current liabilities | 27,312 us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesOther / us-gaap_BusinessAcquisitionAxis = aciw_OfficialPaymentsHoldingsIncMember |  |
Total current liabilities acquired | 51,732 us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilities / us-gaap_BusinessAcquisitionAxis = aciw_OfficialPaymentsHoldingsIncMember |  |
Other noncurrent liabilities acquired | 828 us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNoncurrentLiabilitiesOther / us-gaap_BusinessAcquisitionAxis = aciw_OfficialPaymentsHoldingsIncMember |  |
Total liabilities acquired | 52,560 us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilities / us-gaap_BusinessAcquisitionAxis = aciw_OfficialPaymentsHoldingsIncMember |  |
Net assets acquired | 139,782 us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet / us-gaap_BusinessAcquisitionAxis = aciw_OfficialPaymentsHoldingsIncMember |  |
Online Resources Corporation |  |  |
Business Acquisition [Line Items] |  |  |
Cash and cash equivalents | 9,930 us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCashAndEquivalents / us-gaap_BusinessAcquisitionAxis = aciw_OnlineResourcesCorporationMember |  |
Billed and accrued receivables, net | 19,394 us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsReceivables / us-gaap_BusinessAcquisitionAxis = aciw_OnlineResourcesCorporationMember |  |
Deferred income taxes, net | 11,726 us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedDeferredTaxAssetsCurrent / us-gaap_BusinessAcquisitionAxis = aciw_OnlineResourcesCorporationMember |  |
Other current assets | 17,643 us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsPrepaidExpenseAndOtherAssets / us-gaap_BusinessAcquisitionAxis = aciw_OnlineResourcesCorporationMember |  |
Total current assets acquired | 58,693 us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssets / us-gaap_BusinessAcquisitionAxis = aciw_OnlineResourcesCorporationMember |  |
Property and equipment | 7,335 us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedPropertyPlantAndEquipment / us-gaap_BusinessAcquisitionAxis = aciw_OnlineResourcesCorporationMember |  |
Goodwill | 122,247 us-gaap_Goodwill / us-gaap_BusinessAcquisitionAxis = aciw_OnlineResourcesCorporationMember |  |
Other noncurrent assets | 459 us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedOtherNoncurrentAssets / us-gaap_BusinessAcquisitionAxis = aciw_OnlineResourcesCorporationMember |  |
Total assets acquired | 322,749 us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssets / us-gaap_BusinessAcquisitionAxis = aciw_OnlineResourcesCorporationMember |  |
Accounts payable | 15,394 us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesAccountsPayable / us-gaap_BusinessAcquisitionAxis = aciw_OnlineResourcesCorporationMember |  |
Accrued employee compensation | 10,549 aciw_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAccruedEmployeeCompensation / us-gaap_BusinessAcquisitionAxis = aciw_OnlineResourcesCorporationMember |  |
Note payable | 7,500 us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesLongTermDebt / us-gaap_BusinessAcquisitionAxis = aciw_OnlineResourcesCorporationMember |  |
Other current liabilities | 7,559 us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesOther / us-gaap_BusinessAcquisitionAxis = aciw_OnlineResourcesCorporationMember |  |
Total current liabilities acquired | 41,002 us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilities / us-gaap_BusinessAcquisitionAxis = aciw_OnlineResourcesCorporationMember |  |
Deferred income taxes, net | 18,290 us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedDeferredTaxLiabilitiesNoncurrent / us-gaap_BusinessAcquisitionAxis = aciw_OnlineResourcesCorporationMember |  |
Other noncurrent liabilities acquired | 3,339 us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNoncurrentLiabilitiesOther / us-gaap_BusinessAcquisitionAxis = aciw_OnlineResourcesCorporationMember |  |
Total liabilities acquired | 62,631 us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilities / us-gaap_BusinessAcquisitionAxis = aciw_OnlineResourcesCorporationMember |  |
Net assets acquired | 260,118 us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet / us-gaap_BusinessAcquisitionAxis = aciw_OnlineResourcesCorporationMember |  |
Profesionales en Transacciones Electronicas S.A |  |  |
Business Acquisition [Line Items] |  |  |
Cash and cash equivalents | 193 us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCashAndEquivalents / us-gaap_BusinessAcquisitionAxis = aciw_ProfesionalesEnTransaccionesElectronicasMember |  |
Billed and accrued receivables, net | 327 us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsReceivables / us-gaap_BusinessAcquisitionAxis = aciw_ProfesionalesEnTransaccionesElectronicasMember |  |
Other current assets | 95 us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsPrepaidExpenseAndOtherAssets / us-gaap_BusinessAcquisitionAxis = aciw_ProfesionalesEnTransaccionesElectronicasMember |  |
Total current assets acquired | 615 us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssets / us-gaap_BusinessAcquisitionAxis = aciw_ProfesionalesEnTransaccionesElectronicasMember |  |
Property and equipment | 6 us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedPropertyPlantAndEquipment / us-gaap_BusinessAcquisitionAxis = aciw_ProfesionalesEnTransaccionesElectronicasMember |  |
Goodwill | 7,113 us-gaap_Goodwill / us-gaap_BusinessAcquisitionAxis = aciw_ProfesionalesEnTransaccionesElectronicasMember |  |
Other noncurrent assets | 7 us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedOtherNoncurrentAssets / us-gaap_BusinessAcquisitionAxis = aciw_ProfesionalesEnTransaccionesElectronicasMember |  |
Total assets acquired | 15,473 us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssets / us-gaap_BusinessAcquisitionAxis = aciw_ProfesionalesEnTransaccionesElectronicasMember |  |
Accounts payable | 341 us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesAccountsPayable / us-gaap_BusinessAcquisitionAxis = aciw_ProfesionalesEnTransaccionesElectronicasMember |  |
Accrued employee compensation | 261 aciw_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAccruedEmployeeCompensation / us-gaap_BusinessAcquisitionAxis = aciw_ProfesionalesEnTransaccionesElectronicasMember |  |
Total current liabilities acquired | 602 us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilities / us-gaap_BusinessAcquisitionAxis = aciw_ProfesionalesEnTransaccionesElectronicasMember |  |
Deferred income taxes, net | 225 us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedDeferredTaxLiabilitiesNoncurrent / us-gaap_BusinessAcquisitionAxis = aciw_ProfesionalesEnTransaccionesElectronicasMember |  |
Other noncurrent liabilities acquired | 439 us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNoncurrentLiabilitiesOther / us-gaap_BusinessAcquisitionAxis = aciw_ProfesionalesEnTransaccionesElectronicasMember |  |
Total liabilities acquired | 1,266 us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilities / us-gaap_BusinessAcquisitionAxis = aciw_ProfesionalesEnTransaccionesElectronicasMember |  |
Net assets acquired | 14,207 us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet / us-gaap_BusinessAcquisitionAxis = aciw_ProfesionalesEnTransaccionesElectronicasMember |  |
Software | Retail Decisions [Member] |  |  |
Business Acquisition [Line Items] |  |  |
Amortizable intangible assets | 33,136 us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibles / us-gaap_BusinessAcquisitionAxis = aciw_RetailDecisionsMember / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_ComputerSoftwareIntangibleAssetMember |  |
Software | Retail Decisions [Member] | Minimum |  |  |
Business Acquisition [Line Items] |  |  |
Acquired intangible assets, weighted-average useful lives | 5 years |  |
Software | Retail Decisions [Member] | Maximum |  |  |
Business Acquisition [Line Items] |  |  |
Acquired intangible assets, weighted-average useful lives | 7 years |  |
Software | Official Payments Holdings, Inc. |  |  |
Business Acquisition [Line Items] |  |  |
Acquired intangible assets, weighted-average useful lives | 10 years |  |
Amortizable intangible assets | 26,125 us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibles / us-gaap_BusinessAcquisitionAxis = aciw_OfficialPaymentsHoldingsIncMember / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_ComputerSoftwareIntangibleAssetMember |  |
Software | Online Resources Corporation |  |  |
Business Acquisition [Line Items] |  |  |
Acquired intangible assets, weighted-average useful lives | 10 years |  |
Amortizable intangible assets | 62,215 us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibles / us-gaap_BusinessAcquisitionAxis = aciw_OnlineResourcesCorporationMember / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_ComputerSoftwareIntangibleAssetMember |  |
Customer relationships | Retail Decisions [Member] |  |  |
Business Acquisition [Line Items] |  |  |
Acquired intangible assets, weighted-average useful lives | 18 years |  |
Amortizable intangible assets | 50,480 us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibles / us-gaap_BusinessAcquisitionAxis = aciw_RetailDecisionsMember / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_CustomerRelationshipsMember |  |
Customer relationships | Official Payments Holdings, Inc. |  |  |
Business Acquisition [Line Items] |  |  |
Amortizable intangible assets | 47,400 us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibles / us-gaap_BusinessAcquisitionAxis = aciw_OfficialPaymentsHoldingsIncMember / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_CustomerRelationshipsMember | 47,400 us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibles / us-gaap_BusinessAcquisitionAxis = aciw_OfficialPaymentsHoldingsIncMember / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_CustomerRelationshipsMember |
Customer relationships | Official Payments Holdings, Inc. | Minimum |  |  |
Business Acquisition [Line Items] |  |  |
Acquired intangible assets, weighted-average useful lives | 14 years |  |
Customer relationships | Official Payments Holdings, Inc. | Maximum |  |  |
Business Acquisition [Line Items] |  |  |
Acquired intangible assets, weighted-average useful lives | 15 years |  |
Customer relationships | Online Resources Corporation |  |  |
Business Acquisition [Line Items] |  |  |
Amortizable intangible assets | 68,750 us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibles / us-gaap_BusinessAcquisitionAxis = aciw_OnlineResourcesCorporationMember / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_CustomerRelationshipsMember |  |
Customer relationships | Online Resources Corporation | Minimum |  |  |
Business Acquisition [Line Items] |  |  |
Acquired intangible assets, weighted-average useful lives | 14 years |  |
Customer relationships | Online Resources Corporation | Maximum |  |  |
Business Acquisition [Line Items] |  |  |
Acquired intangible assets, weighted-average useful lives | 15 years |  |
Customer relationships | Profesionales en Transacciones Electronicas S.A |  |  |
Business Acquisition [Line Items] |  |  |
Amortizable intangible assets | 7,732 us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibles / us-gaap_BusinessAcquisitionAxis = aciw_ProfesionalesEnTransaccionesElectronicasMember / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_CustomerRelationshipsMember |  |
Customer relationships | Profesionales en Transacciones Electronicas S.A | Minimum |  |  |
Business Acquisition [Line Items] |  |  |
Acquired intangible assets, weighted-average useful lives | 14 years |  |
Customer relationships | Profesionales en Transacciones Electronicas S.A | Maximum |  |  |
Business Acquisition [Line Items] |  |  |
Acquired intangible assets, weighted-average useful lives | 15 years |  |
Trademarks | Retail Decisions [Member] |  |  |
Business Acquisition [Line Items] |  |  |
Acquired intangible assets, weighted-average useful lives | 5 years |  |
Amortizable intangible assets | 3,980 us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibles / us-gaap_BusinessAcquisitionAxis = aciw_RetailDecisionsMember / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_TrademarksMember |  |
Trademarks | Official Payments Holdings, Inc. |  |  |
Business Acquisition [Line Items] |  |  |
Amortizable intangible assets | 3,000 us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibles / us-gaap_BusinessAcquisitionAxis = aciw_OfficialPaymentsHoldingsIncMember / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_TrademarksMember |  |
Trademarks | Official Payments Holdings, Inc. | Minimum |  |  |
Business Acquisition [Line Items] |  |  |
Acquired intangible assets, weighted-average useful lives | 3 years |  |
Trademarks | Official Payments Holdings, Inc. | Maximum |  |  |
Business Acquisition [Line Items] |  |  |
Acquired intangible assets, weighted-average useful lives | 5 years |  |
Trademarks | Online Resources Corporation |  |  |
Business Acquisition [Line Items] |  |  |
Amortizable intangible assets | 3,050 us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibles / us-gaap_BusinessAcquisitionAxis = aciw_OnlineResourcesCorporationMember / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_TrademarksMember |  |
Trademarks | Online Resources Corporation | Minimum |  |  |
Business Acquisition [Line Items] |  |  |
Acquired intangible assets, weighted-average useful lives | 3 years |  |
Trademarks | Online Resources Corporation | Maximum |  |  |
Business Acquisition [Line Items] |  |  |
Acquired intangible assets, weighted-average useful lives | 5 years |  |

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