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Revenue - Summary of Changes in Deferred Revenue (Details) $ in Thousands | 6 Months Ended
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Jun. 30, 2021 USD ($)
Change in Contract with Customer, Liability [Roll Forward] |
Deferred revenue, beginning balance | $ 129,413
Deferral of revenue | 67,734
Recognition of deferred revenue | (67,134)
Foreign currency translation | 14
Deferred revenue, ending balance | $ 130,027

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- Definition Change in Contract with Customer, Liability [Roll Forward] + References No definition available. + Details
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- Definition Amount of revenue deferred in the current period for which consideration has been received or is receivable and an obligation exists to transfer goods or services to the customer. + References No definition available. + Details
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Namespace Prefix: | aciw_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
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- Definition Amount of increase (decrease) in Contract With Customer Liability Foreign Currency Translation. + References No definition available. + Details
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- Definition Amount of revenue recognized previously included in balance of obligation to transfer good or service to customer for which consideration from customer has been received or is due. + References No definition available. + Details
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Namespace Prefix: | aciw_
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Period Type: | duration

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- Definition Amount of obligation to transfer good or service to customer for which consideration has been received or is receivable. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=121556615&loc=SL49130531-203044 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 8 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=121604090&loc=SL49130549-203045 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=121556615&loc=SL49130532-203044 + Details
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