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Recently Issued Accounting Standards (Details) (USD $) In Millions, unless otherwise specified | Apr. 30, 2015
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New Accounting Pronouncements and Changes in Accounting Principles [Abstract] |
Debt issuance costs reclassified to a reduction in long-term notes payable, net | $ 3.9 adsk_NewAccountingPronouncementorChangeinAccountingPrincipleDebtIssuanceCostsReclassifiedtoaReductioninLongtermNotesPayableNet

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- Definition New Accounting Pronouncement or Change in Accounting Principle, Debt Issuance Costs Reclassified to a Reduction in Long-term Notes Payable, Net + References No definition available. + Details
Name: | adsk_NewAccountingPronouncementorChangeinAccountingPrincipleDebtIssuanceCostsReclassifiedtoaReductioninLongtermNotesPayableNet
Namespace Prefix: | adsk_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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