3.22.1 html 19 69 1 false 4 0 false 5 false false R1.htm 000100 - Document - Document and Entity Information Sheet http://aspentech.com/role/DocumentAndEntityInformation Document and Entity Information Cover 1 false false R2.htm 010000 - Statement - Unaudited Condensed Consolidated Statements of Earnings Sheet http://aspentech.com/role/UnauditedCondensedConsolidatedStatementsOfEarnings Unaudited Condensed Consolidated Statements of Earnings Statements 2 false false R3.htm 020000 - Statement - Unaudited Condensed Consolidated Statements of Comprehensive Income Sheet http://aspentech.com/role/UnauditedCondensedConsolidatedStatementsOfComprehensiveIncome Unaudited Condensed Consolidated Statements of Comprehensive Income Statements 3 false false R4.htm 030000 - Statement - Unaudited Condensed Consolidated Balance Sheet Sheet http://aspentech.com/role/UnauditedCondensedConsolidatedBalanceSheet Unaudited Condensed Consolidated Balance Sheet Statements 4 false false R5.htm 030100 - Statement - Unaudited Condensed Consolidated Balance Sheet (Parenthetical) Sheet http://aspentech.com/role/UnauditedCondensedConsolidatedBalanceSheetParenthetical Unaudited Condensed Consolidated Balance Sheet (Parenthetical) Statements 5 false false R6.htm 040000 - Statement - Unaudited Condensed Consolidated Statements of Equity Sheet http://aspentech.com/role/UnauditedCondensedConsolidatedStatementsOfEquity Unaudited Condensed Consolidated Statements of Equity Statements 6 false false R7.htm 050000 - Statement - Unaudited Condensed Consolidated Statements of Cash Flows Sheet http://aspentech.com/role/UnauditedCondensedConsolidatedStatementsOfCashFlows Unaudited Condensed Consolidated Statements of Cash Flows Statements 7 false false R8.htm 060100 - Disclosure - ORGANIZATION, BASIS OF PRESENTATION, BUSINESS DESCRIPTION AND SIGNIFICANT ACCOUNTING POLICIES Sheet http://aspentech.com/role/OrganizationBasisOfPresentationBusinessDescriptionAndSignificantAccountingPolicies ORGANIZATION, BASIS OF PRESENTATION, BUSINESS DESCRIPTION AND SIGNIFICANT ACCOUNTING POLICIES Notes 8 false false R9.htm 060200 - Disclosure - THE TRANSACTION PARTIES Sheet http://aspentech.com/role/TransactionParties THE TRANSACTION PARTIES Notes 9 false false R10.htm 060300 - Disclosure - RELATED PARTY TRANSACTIONS Sheet http://aspentech.com/role/RelatedPartyTransactions RELATED PARTY TRANSACTIONS Notes 10 false false R11.htm 060400 - Disclosure - COMMITMENTS AND CONTINGENCIES Sheet http://aspentech.com/role/CommitmentsAndContingencies COMMITMENTS AND CONTINGENCIES Notes 11 false false R12.htm 070100 - Disclosure - ORGANIZATION, BASIS OF PRESENTATION, BUSINESS DESCRIPTION AND SIGNIFICANT ACCOUNTING POLICIES (Policies) Sheet http://aspentech.com/role/OrganizationBasisOfPresentationBusinessDescriptionAndSignificantAccountingPoliciesPolicies ORGANIZATION, BASIS OF PRESENTATION, BUSINESS DESCRIPTION AND SIGNIFICANT ACCOUNTING POLICIES (Policies) Policies 12 false false R13.htm 090100 - Disclosure - ORGANIZATION, BASIS OF PRESENTATION, BUSINESS DESCRIPTION AND SIGNIFICANT ACCOUNTING POLICIES (Details) Sheet http://aspentech.com/role/OrganizationBasisOfPresentationBusinessDescriptionAndSignificantAccountingPoliciesDetails ORGANIZATION, BASIS OF PRESENTATION, BUSINESS DESCRIPTION AND SIGNIFICANT ACCOUNTING POLICIES (Details) Details http://aspentech.com/role/OrganizationBasisOfPresentationBusinessDescriptionAndSignificantAccountingPoliciesPolicies 13 false false R14.htm 090300 - Disclosure - RELATED PARTY TRANSACTIONS (Details) Sheet http://aspentech.com/role/RelatedPartyTransactionsDetails RELATED PARTY TRANSACTIONS (Details) Details http://aspentech.com/role/RelatedPartyTransactions 14 false false All Reports Book All Reports brhc10037680_10q.htm azpn-20220331.xsd azpn-20220331_cal.xml azpn-20220331_def.xml azpn-20220331_lab.xml azpn-20220331_pre.xml brhc10037680_ex31.htm brhc10037680_ex32.htm http://fasb.org/us-gaap/2021-01-31 http://xbrl.sec.gov/dei/2021q4 true true