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v2.4.1.9

Segments - Concerning the Operations Of Reportable Segments (Details) (USD $) In Millions, unless otherwise specified | 3 Months Ended | 12 Months Ended
--- | --- | ---
Jan. 31, 2015 | Oct. 31, 2014 | Jul. 31, 2014 | Apr. 30, 2014 | Jan. 31, 2014 | Oct. 31, 2013 | Jul. 31, 2013 | Apr. 30, 2013 | Jan. 31, 2015 | Jan. 31, 2014 | Jan. 31, 2013
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net revenue | $ 664.6 us-gaap_SalesRevenueNet | $ 618.0 us-gaap_SalesRevenueNet | $ 637.1 us-gaap_SalesRevenueNet | $ 592.5 us-gaap_SalesRevenueNet | $ 586.6 us-gaap_SalesRevenueNet | $ 555.2 us-gaap_SalesRevenueNet | $ 561.7 us-gaap_SalesRevenueNet | $ 570.4 us-gaap_SalesRevenueNet | $ 2,512.2 us-gaap_SalesRevenueNet |  | $ 2,273.9 us-gaap_SalesRevenueNet |  | $ 2,312.2 us-gaap_SalesRevenueNet |
Gross profit | 575.1 us-gaap_GrossProfit | 532.0 us-gaap_GrossProfit | 549.2 us-gaap_GrossProfit | 513.8 us-gaap_GrossProfit | 514.7 us-gaap_GrossProfit | 488.1 us-gaap_GrossProfit | 493.9 us-gaap_GrossProfit | 502.9 us-gaap_GrossProfit | 2,170.1 us-gaap_GrossProfit |  | 1,999.6 us-gaap_GrossProfit |  | 2,073.7 us-gaap_GrossProfit |
Depreciation and Amortization |  |  |  |  |  |  |  |  | 145.9 us-gaap_DepreciationDepletionAndAmortization |  | 128.9 us-gaap_DepreciationDepletionAndAmortization |  | 127.8 us-gaap_DepreciationDepletionAndAmortization |
Architecture, Engineering, and Construction |  |  |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net revenue |  |  |  |  |  |  |  |  | 872.6 us-gaap_SalesRevenueNet / us-gaap_StatementBusinessSegmentsAxis = adsk_ArchitectureEngineeringAndConstructionMember | [1] | 730.6 us-gaap_SalesRevenueNet / us-gaap_StatementBusinessSegmentsAxis = adsk_ArchitectureEngineeringAndConstructionMember | [1] | 701.1 us-gaap_SalesRevenueNet / us-gaap_StatementBusinessSegmentsAxis = adsk_ArchitectureEngineeringAndConstructionMember | [1]
Gross profit |  |  |  |  |  |  |  |  | 785.8 us-gaap_GrossProfit / us-gaap_StatementBusinessSegmentsAxis = adsk_ArchitectureEngineeringAndConstructionMember | [1] | 663.8 us-gaap_GrossProfit / us-gaap_StatementBusinessSegmentsAxis = adsk_ArchitectureEngineeringAndConstructionMember | [1] | 642.0 us-gaap_GrossProfit / us-gaap_StatementBusinessSegmentsAxis = adsk_ArchitectureEngineeringAndConstructionMember | [1]
Depreciation and Amortization |  |  |  |  |  |  |  |  | 1.3 us-gaap_DepreciationDepletionAndAmortization / us-gaap_StatementBusinessSegmentsAxis = adsk_ArchitectureEngineeringAndConstructionMember |  | 0.2 us-gaap_DepreciationDepletionAndAmortization / us-gaap_StatementBusinessSegmentsAxis = adsk_ArchitectureEngineeringAndConstructionMember |  | 0.2 us-gaap_DepreciationDepletionAndAmortization / us-gaap_StatementBusinessSegmentsAxis = adsk_ArchitectureEngineeringAndConstructionMember |
Platform Solutions and Emerging Business |  |  |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net revenue |  |  |  |  |  |  |  |  | 796.7 us-gaap_SalesRevenueNet / us-gaap_StatementBusinessSegmentsAxis = adsk_PlatformSolutionsAndEmergingBusinessMember | [1] | 789.2 us-gaap_SalesRevenueNet / us-gaap_StatementBusinessSegmentsAxis = adsk_PlatformSolutionsAndEmergingBusinessMember | [1] | 843.0 us-gaap_SalesRevenueNet / us-gaap_StatementBusinessSegmentsAxis = adsk_PlatformSolutionsAndEmergingBusinessMember | [1]
Gross profit |  |  |  |  |  |  |  |  | 712.3 us-gaap_GrossProfit / us-gaap_StatementBusinessSegmentsAxis = adsk_PlatformSolutionsAndEmergingBusinessMember | [1] | 716.8 us-gaap_GrossProfit / us-gaap_StatementBusinessSegmentsAxis = adsk_PlatformSolutionsAndEmergingBusinessMember | [1] | 788.8 us-gaap_GrossProfit / us-gaap_StatementBusinessSegmentsAxis = adsk_PlatformSolutionsAndEmergingBusinessMember | [1]
Depreciation and Amortization |  |  |  |  |  |  |  |  | 6.8 us-gaap_DepreciationDepletionAndAmortization / us-gaap_StatementBusinessSegmentsAxis = adsk_PlatformSolutionsAndEmergingBusinessMember |  | 5.5 us-gaap_DepreciationDepletionAndAmortization / us-gaap_StatementBusinessSegmentsAxis = adsk_PlatformSolutionsAndEmergingBusinessMember |  | 1.8 us-gaap_DepreciationDepletionAndAmortization / us-gaap_StatementBusinessSegmentsAxis = adsk_PlatformSolutionsAndEmergingBusinessMember |
Manufacturing |  |  |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net revenue |  |  |  |  |  |  |  |  | 675.6 us-gaap_SalesRevenueNet / us-gaap_StatementBusinessSegmentsAxis = adsk_ManufacturingMember |  | 579.4 us-gaap_SalesRevenueNet / us-gaap_StatementBusinessSegmentsAxis = adsk_ManufacturingMember |  | 573.8 us-gaap_SalesRevenueNet / us-gaap_StatementBusinessSegmentsAxis = adsk_ManufacturingMember |
Gross profit |  |  |  |  |  |  |  |  | 604.0 us-gaap_GrossProfit / us-gaap_StatementBusinessSegmentsAxis = adsk_ManufacturingMember |  | 531.5 us-gaap_GrossProfit / us-gaap_StatementBusinessSegmentsAxis = adsk_ManufacturingMember |  | 531.3 us-gaap_GrossProfit / us-gaap_StatementBusinessSegmentsAxis = adsk_ManufacturingMember |
Depreciation and Amortization |  |  |  |  |  |  |  |  | 3.0 us-gaap_DepreciationDepletionAndAmortization / us-gaap_StatementBusinessSegmentsAxis = adsk_ManufacturingMember |  | 0.9 us-gaap_DepreciationDepletionAndAmortization / us-gaap_StatementBusinessSegmentsAxis = adsk_ManufacturingMember |  | 0.5 us-gaap_DepreciationDepletionAndAmortization / us-gaap_StatementBusinessSegmentsAxis = adsk_ManufacturingMember |
Media and Entertainment |  |  |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net revenue |  |  |  |  |  |  |  |  | 167.3 us-gaap_SalesRevenueNet / us-gaap_StatementBusinessSegmentsAxis = adsk_MediaAndEntertainmentMember | [1] | 174.7 us-gaap_SalesRevenueNet / us-gaap_StatementBusinessSegmentsAxis = adsk_MediaAndEntertainmentMember | [1] | 194.3 us-gaap_SalesRevenueNet / us-gaap_StatementBusinessSegmentsAxis = adsk_MediaAndEntertainmentMember | [1]
Gross profit |  |  |  |  |  |  |  |  | 127.3 us-gaap_GrossProfit / us-gaap_StatementBusinessSegmentsAxis = adsk_MediaAndEntertainmentMember |  | 137.8 us-gaap_GrossProfit / us-gaap_StatementBusinessSegmentsAxis = adsk_MediaAndEntertainmentMember |  | 156.5 us-gaap_GrossProfit / us-gaap_StatementBusinessSegmentsAxis = adsk_MediaAndEntertainmentMember |
Depreciation and Amortization |  |  |  |  |  |  |  |  | 0.3 us-gaap_DepreciationDepletionAndAmortization / us-gaap_StatementBusinessSegmentsAxis = adsk_MediaAndEntertainmentMember |  | 0.2 us-gaap_DepreciationDepletionAndAmortization / us-gaap_StatementBusinessSegmentsAxis = adsk_MediaAndEntertainmentMember |  | 0.4 us-gaap_DepreciationDepletionAndAmortization / us-gaap_StatementBusinessSegmentsAxis = adsk_MediaAndEntertainmentMember |
Unallocated |  |  |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Gross profit |  |  |  |  |  |  |  |  | (59.3)us-gaap_GrossProfit / us-gaap_StatementBusinessSegmentsAxis = us-gaap_MaterialReconcilingItemsMember | [2] | (50.3)us-gaap_GrossProfit / us-gaap_StatementBusinessSegmentsAxis = us-gaap_MaterialReconcilingItemsMember | [2] | (44.9)us-gaap_GrossProfit / us-gaap_StatementBusinessSegmentsAxis = us-gaap_MaterialReconcilingItemsMember | [2]
Depreciation and Amortization |  |  |  |  |  |  |  |  | $ 134.5 us-gaap_DepreciationDepletionAndAmortization / us-gaap_StatementBusinessSegmentsAxis = us-gaap_MaterialReconcilingItemsMember |  | $ 122.1 us-gaap_DepreciationDepletionAndAmortization / us-gaap_StatementBusinessSegmentsAxis = us-gaap_MaterialReconcilingItemsMember |  | $ 124.9 us-gaap_DepreciationDepletionAndAmortization / us-gaap_StatementBusinessSegmentsAxis = us-gaap_MaterialReconcilingItemsMember |
[1] | Prior period segment revenue amounts have been updated to conform to the current period's presentation.
[2] | Unallocated amounts primarily relate to corporate expenses and other costs and expenses that are managed outside the reportable segments, including stock-based compensation expense.

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- Definition The aggregate expense recognized in the current period that allocates the cost of tangible assets, intangible assets, or depleting assets to periods that benefit from use of the assets. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3602-108585 + Details
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- Definition Total revenue from sale of goods and services rendered during the reporting period, in the normal course of business, reduced by sales returns and allowances, and sales discounts. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.1) -URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 1 -Article 5 + Details
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