XML 77 R61.htm IDEA: XBRL DOCUMENT
v3.3.1.900

Employee and Director Stock Plans - Options Outstanding and Exercisable (Detail) shares in Millions | Jan. 31, 2016 $ / shares shares
--- | ---
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Options Vested and Exercisable, Number of Shares | shares | 1.6
Options Vested and Exercisable, Weighted average exercise price | $ 37.06
$12.31 - $34.70 |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Range of per-share exercise prices, Lower Limit | 12.31
Range of per-share exercise prices, Upper Limit | $ 34.70
Options Vested and Exercisable, Number of Shares | shares | 0.5
Options Vested and Exercisable, Weighted average exercise price | $ 27.34
$36.06 - $41.62 |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Range of per-share exercise prices, Lower Limit | 36.06
Range of per-share exercise prices, Upper Limit | $ 41.62
Options Vested and Exercisable, Number of Shares | shares | 0.6
Options Vested and Exercisable, Weighted average exercise price | $ 40.62
$42.39 - $43.81 |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Range of per-share exercise prices, Lower Limit | 42.39
Range of per-share exercise prices, Upper Limit | $ 43.81
Options Vested and Exercisable, Number of Shares | shares | 0.5
Options Vested and Exercisable, Weighted average exercise price | $ 43.80

X
- Definition Share Based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, Lower Limit + References No definition available. + Details
Name: | adsk_Sharebasedcompensationsharesauthorizedunderstockoptionplansexercisepricerangelowerlimit
Namespace Prefix: | adsk_
Data Type: | num:perShareItemType
Balance Type: | na
Period Type: | instant

X
- Definition Share Based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, Upper Limit + References No definition available. + Details
Name: | adsk_Sharebasedcompensationsharesauthorizedunderstockoptionplansexercisepricerangeupperlimit
Namespace Prefix: | adsk_
Data Type: | num:perShareItemType
Balance Type: | na
Period Type: | instant

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
Name: | us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The number of shares into which fully or partially vested stock options outstanding as of the balance sheet date can be currently converted under the option plan. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1)(iii) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
Name: | us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber
Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | instant

X
- Definition The weighted-average price as of the balance sheet date at which grantees can acquire the shares reserved for issuance on vested portions of options outstanding and currently exercisable under the stock option plan. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1)(iii) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
Name: | us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice
Namespace Prefix: | us-gaap_
Data Type: | num:perShareItemType
Balance Type: | na
Period Type: | instant

X
- Details
Name: | us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis=adsk_Range1Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis=adsk_Range2Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis=adsk_Range3Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |