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Business and Summary of Significant Accounting Policies - Changes In the Carrying Amount of Goodwill (Details) (USD $) In Millions, unless otherwise specified | 12 Months Ended |  |
--- | --- | --- | ---
Jan. 31, 2015 | Jan. 31, 2014 | Jan. 31, 2013 | Feb. 06, 2014 | May 29, 2014
Goodwill [Roll Forward] |  |  |  |  |
Goodwill before accumulated impairments | $ 1,159.1 adsk_GoodwillBeforeAccumulatedImpairments | $ 1,020.7 adsk_GoodwillBeforeAccumulatedImpairments |  |  |
Accumulated impairment losses | (149.2)adsk_GoodwillAccumulatedImpairments | (149.2)adsk_GoodwillAccumulatedImpairments |  |  |
Goodwill, beginning of period | 1,009.9 us-gaap_Goodwill | 871.5 us-gaap_Goodwill |  |  |
Effect of foreign currency translation, purchase accounting adjustments, and other | (54.9)us-gaap_GoodwillTranslationAndPurchaseAccountingAdjustments | (2.0)us-gaap_GoodwillTranslationAndPurchaseAccountingAdjustments |  |  |
Goodwill before accumulated impairments | 1,605.4 adsk_GoodwillBeforeAccumulatedImpairments | 1,159.1 adsk_GoodwillBeforeAccumulatedImpairments | 1,020.7 adsk_GoodwillBeforeAccumulatedImpairments |  |
Accumulated impairment losses | (149.2)adsk_GoodwillAccumulatedImpairments | (149.2)adsk_GoodwillAccumulatedImpairments | (149.2)adsk_GoodwillAccumulatedImpairments |  |
Goodwill, end of period | 1,456.2 us-gaap_Goodwill | 1,009.9 us-gaap_Goodwill | 871.5 us-gaap_Goodwill |  |
Impairment loss | 0 us-gaap_GoodwillImpairmentLoss | 0 us-gaap_GoodwillImpairmentLoss | 0 us-gaap_GoodwillImpairmentLoss |  |
Delcam plc |  |  |  |  |
Goodwill [Roll Forward] |  |  |  |  |
Goodwill, beginning of period |  |  |  | 166.0 us-gaap_Goodwill / us-gaap_BusinessAcquisitionAxis = adsk_DelcamMember |
Goodwill acquired during period | 196.1 us-gaap_GoodwillAcquiredDuringPeriod / us-gaap_BusinessAcquisitionAxis = adsk_DelcamMember |  |  |  |
Goodwill, end of period | 190.4 us-gaap_Goodwill / us-gaap_BusinessAcquisitionAxis = adsk_DelcamMember |  |  | 166.0 us-gaap_Goodwill / us-gaap_BusinessAcquisitionAxis = adsk_DelcamMember |
Within Technologies Limited |  |  |  |  |
Goodwill [Roll Forward] |  |  |  |  |
Goodwill, beginning of period |  |  |  |  | 78.9 us-gaap_Goodwill / us-gaap_BusinessAcquisitionAxis = adsk_WithinTechnologiesLimitedMember
Goodwill acquired during period | 80.6 us-gaap_GoodwillAcquiredDuringPeriod / us-gaap_BusinessAcquisitionAxis = adsk_WithinTechnologiesLimitedMember |  |  |  |
Goodwill, end of period | 80.6 us-gaap_Goodwill / us-gaap_BusinessAcquisitionAxis = adsk_WithinTechnologiesLimitedMember |  |  |  | 78.9 us-gaap_Goodwill / us-gaap_BusinessAcquisitionAxis = adsk_WithinTechnologiesLimitedMember
Shotgun Software Inc. |  |  |  |  |
Goodwill [Roll Forward] |  |  |  |  |
Goodwill acquired during period | 43.2 us-gaap_GoodwillAcquiredDuringPeriod / us-gaap_BusinessAcquisitionAxis = adsk_ShotgunMember |  |  |  |
Goodwill, end of period | 43.2 us-gaap_Goodwill / us-gaap_BusinessAcquisitionAxis = adsk_ShotgunMember |  |  |  |
Graitec SA |  |  |  |  |
Goodwill [Roll Forward] |  |  |  |  |
Goodwill acquired during period |  | 73.4 us-gaap_GoodwillAcquiredDuringPeriod / us-gaap_BusinessAcquisitionAxis = adsk_GraitecSAMember |  |  |
Goodwill acquired from other acquisitions |  |  |  |  |
Goodwill [Roll Forward] |  |  |  |  |
Goodwill acquired during period | 181.3 us-gaap_GoodwillAcquiredDuringPeriod / us-gaap_BusinessAcquisitionAxis = adsk_OtherAcquisitionsMember | 67.0 us-gaap_GoodwillAcquiredDuringPeriod / us-gaap_BusinessAcquisitionAxis = adsk_OtherAcquisitionsMember |  |  |
Platform Solutions and Emerging Business |  |  |  |  |
Goodwill [Roll Forward] |  |  |  |  |
Goodwill before accumulated impairments | 142.3 adsk_GoodwillBeforeAccumulatedImpairments / us-gaap_StatementBusinessSegmentsAxis = adsk_PlatformSolutionsAndEmergingBusinessMember | 129.5 adsk_GoodwillBeforeAccumulatedImpairments / us-gaap_StatementBusinessSegmentsAxis = adsk_PlatformSolutionsAndEmergingBusinessMember |  |  |
Accumulated impairment losses | 0 adsk_GoodwillAccumulatedImpairments / us-gaap_StatementBusinessSegmentsAxis = adsk_PlatformSolutionsAndEmergingBusinessMember | 0 adsk_GoodwillAccumulatedImpairments / us-gaap_StatementBusinessSegmentsAxis = adsk_PlatformSolutionsAndEmergingBusinessMember |  |  |
Goodwill, beginning of period | 142.3 us-gaap_Goodwill / us-gaap_StatementBusinessSegmentsAxis = adsk_PlatformSolutionsAndEmergingBusinessMember | 129.5 us-gaap_Goodwill / us-gaap_StatementBusinessSegmentsAxis = adsk_PlatformSolutionsAndEmergingBusinessMember |  |  |
Effect of foreign currency translation, purchase accounting adjustments, and other | (13.2)us-gaap_GoodwillTranslationAndPurchaseAccountingAdjustments / us-gaap_StatementBusinessSegmentsAxis = adsk_PlatformSolutionsAndEmergingBusinessMember | 0 us-gaap_GoodwillTranslationAndPurchaseAccountingAdjustments / us-gaap_StatementBusinessSegmentsAxis = adsk_PlatformSolutionsAndEmergingBusinessMember |  |  |
Goodwill before accumulated impairments | 327.5 adsk_GoodwillBeforeAccumulatedImpairments / us-gaap_StatementBusinessSegmentsAxis = adsk_PlatformSolutionsAndEmergingBusinessMember | 142.3 adsk_GoodwillBeforeAccumulatedImpairments / us-gaap_StatementBusinessSegmentsAxis = adsk_PlatformSolutionsAndEmergingBusinessMember |  |  |
Accumulated impairment losses | 0 adsk_GoodwillAccumulatedImpairments / us-gaap_StatementBusinessSegmentsAxis = adsk_PlatformSolutionsAndEmergingBusinessMember | 0 adsk_GoodwillAccumulatedImpairments / us-gaap_StatementBusinessSegmentsAxis = adsk_PlatformSolutionsAndEmergingBusinessMember |  |  |
Goodwill, end of period | 327.5 us-gaap_Goodwill / us-gaap_StatementBusinessSegmentsAxis = adsk_PlatformSolutionsAndEmergingBusinessMember | 142.3 us-gaap_Goodwill / us-gaap_StatementBusinessSegmentsAxis = adsk_PlatformSolutionsAndEmergingBusinessMember |  |  |
Platform Solutions and Emerging Business | Delcam plc |  |  |  |  |
Goodwill [Roll Forward] |  |  |  |  |
Goodwill acquired during period | 0 us-gaap_GoodwillAcquiredDuringPeriod / us-gaap_BusinessAcquisitionAxis = adsk_DelcamMember / us-gaap_StatementBusinessSegmentsAxis = adsk_PlatformSolutionsAndEmergingBusinessMember |  |  |  |
Platform Solutions and Emerging Business | Within Technologies Limited |  |  |  |  |
Goodwill [Roll Forward] |  |  |  |  |
Goodwill acquired during period | 80.6 us-gaap_GoodwillAcquiredDuringPeriod / us-gaap_BusinessAcquisitionAxis = adsk_WithinTechnologiesLimitedMember / us-gaap_StatementBusinessSegmentsAxis = adsk_PlatformSolutionsAndEmergingBusinessMember |  |  |  |
Platform Solutions and Emerging Business | Shotgun Software Inc. |  |  |  |  |
Goodwill [Roll Forward] |  |  |  |  |
Goodwill acquired during period | 0 us-gaap_GoodwillAcquiredDuringPeriod / us-gaap_BusinessAcquisitionAxis = adsk_ShotgunMember / us-gaap_StatementBusinessSegmentsAxis = adsk_PlatformSolutionsAndEmergingBusinessMember |  |  |  |
Platform Solutions and Emerging Business | Graitec SA |  |  |  |  |
Goodwill [Roll Forward] |  |  |  |  |
Goodwill acquired during period |  | 0 us-gaap_GoodwillAcquiredDuringPeriod / us-gaap_BusinessAcquisitionAxis = adsk_GraitecSAMember / us-gaap_StatementBusinessSegmentsAxis = adsk_PlatformSolutionsAndEmergingBusinessMember |  |  |
Platform Solutions and Emerging Business | Goodwill acquired from other acquisitions |  |  |  |  |
Goodwill [Roll Forward] |  |  |  |  |
Goodwill acquired during period | 117.8 us-gaap_GoodwillAcquiredDuringPeriod / us-gaap_BusinessAcquisitionAxis = adsk_OtherAcquisitionsMember / us-gaap_StatementBusinessSegmentsAxis = adsk_PlatformSolutionsAndEmergingBusinessMember | 12.8 us-gaap_GoodwillAcquiredDuringPeriod / us-gaap_BusinessAcquisitionAxis = adsk_OtherAcquisitionsMember / us-gaap_StatementBusinessSegmentsAxis = adsk_PlatformSolutionsAndEmergingBusinessMember |  |  |
Architecture, Engineering, and Construction |  |  |  |  |
Goodwill [Roll Forward] |  |  |  |  |
Goodwill before accumulated impairments | 415.2 adsk_GoodwillBeforeAccumulatedImpairments / us-gaap_StatementBusinessSegmentsAxis = adsk_ArchitectureEngineeringAndConstructionMember | 310.3 adsk_GoodwillBeforeAccumulatedImpairments / us-gaap_StatementBusinessSegmentsAxis = adsk_ArchitectureEngineeringAndConstructionMember |  |  |
Accumulated impairment losses | 0 adsk_GoodwillAccumulatedImpairments / us-gaap_StatementBusinessSegmentsAxis = adsk_ArchitectureEngineeringAndConstructionMember | 0 adsk_GoodwillAccumulatedImpairments / us-gaap_StatementBusinessSegmentsAxis = adsk_ArchitectureEngineeringAndConstructionMember |  |  |
Goodwill, beginning of period | 415.2 us-gaap_Goodwill / us-gaap_StatementBusinessSegmentsAxis = adsk_ArchitectureEngineeringAndConstructionMember | 310.3 us-gaap_Goodwill / us-gaap_StatementBusinessSegmentsAxis = adsk_ArchitectureEngineeringAndConstructionMember |  |  |
Effect of foreign currency translation, purchase accounting adjustments, and other | (16.3)us-gaap_GoodwillTranslationAndPurchaseAccountingAdjustments / us-gaap_StatementBusinessSegmentsAxis = adsk_ArchitectureEngineeringAndConstructionMember | (0.5)us-gaap_GoodwillTranslationAndPurchaseAccountingAdjustments / us-gaap_StatementBusinessSegmentsAxis = adsk_ArchitectureEngineeringAndConstructionMember |  |  |
Goodwill before accumulated impairments | 427.0 adsk_GoodwillBeforeAccumulatedImpairments / us-gaap_StatementBusinessSegmentsAxis = adsk_ArchitectureEngineeringAndConstructionMember | 415.2 adsk_GoodwillBeforeAccumulatedImpairments / us-gaap_StatementBusinessSegmentsAxis = adsk_ArchitectureEngineeringAndConstructionMember |  |  |
Accumulated impairment losses | 0 adsk_GoodwillAccumulatedImpairments / us-gaap_StatementBusinessSegmentsAxis = adsk_ArchitectureEngineeringAndConstructionMember | 0 adsk_GoodwillAccumulatedImpairments / us-gaap_StatementBusinessSegmentsAxis = adsk_ArchitectureEngineeringAndConstructionMember |  |  |
Goodwill, end of period | 427.0 us-gaap_Goodwill / us-gaap_StatementBusinessSegmentsAxis = adsk_ArchitectureEngineeringAndConstructionMember | 415.2 us-gaap_Goodwill / us-gaap_StatementBusinessSegmentsAxis = adsk_ArchitectureEngineeringAndConstructionMember |  |  |
Architecture, Engineering, and Construction | Delcam plc |  |  |  |  |
Goodwill [Roll Forward] |  |  |  |  |
Goodwill acquired during period | 0 us-gaap_GoodwillAcquiredDuringPeriod / us-gaap_BusinessAcquisitionAxis = adsk_DelcamMember / us-gaap_StatementBusinessSegmentsAxis = adsk_ArchitectureEngineeringAndConstructionMember |  |  |  |
Architecture, Engineering, and Construction | Within Technologies Limited |  |  |  |  |
Goodwill [Roll Forward] |  |  |  |  |
Goodwill acquired during period | 0 us-gaap_GoodwillAcquiredDuringPeriod / us-gaap_BusinessAcquisitionAxis = adsk_WithinTechnologiesLimitedMember / us-gaap_StatementBusinessSegmentsAxis = adsk_ArchitectureEngineeringAndConstructionMember |  |  |  |
Architecture, Engineering, and Construction | Shotgun Software Inc. |  |  |  |  |
Goodwill [Roll Forward] |  |  |  |  |
Goodwill acquired during period | 0 us-gaap_GoodwillAcquiredDuringPeriod / us-gaap_BusinessAcquisitionAxis = adsk_ShotgunMember / us-gaap_StatementBusinessSegmentsAxis = adsk_ArchitectureEngineeringAndConstructionMember |  |  |  |
Architecture, Engineering, and Construction | Graitec SA |  |  |  |  |
Goodwill [Roll Forward] |  |  |  |  |
Goodwill acquired during period |  | 73.4 us-gaap_GoodwillAcquiredDuringPeriod / us-gaap_BusinessAcquisitionAxis = adsk_GraitecSAMember / us-gaap_StatementBusinessSegmentsAxis = adsk_ArchitectureEngineeringAndConstructionMember |  |  |
Architecture, Engineering, and Construction | Goodwill acquired from other acquisitions |  |  |  |  |
Goodwill [Roll Forward] |  |  |  |  |
Goodwill acquired during period | 28.1 us-gaap_GoodwillAcquiredDuringPeriod / us-gaap_BusinessAcquisitionAxis = adsk_OtherAcquisitionsMember / us-gaap_StatementBusinessSegmentsAxis = adsk_ArchitectureEngineeringAndConstructionMember | 32.0 us-gaap_GoodwillAcquiredDuringPeriod / us-gaap_BusinessAcquisitionAxis = adsk_OtherAcquisitionsMember / us-gaap_StatementBusinessSegmentsAxis = adsk_ArchitectureEngineeringAndConstructionMember |  |  |
Manufacturing |  |  |  |  |
Goodwill [Roll Forward] |  |  |  |  |
Goodwill before accumulated impairments | 411.6 adsk_GoodwillBeforeAccumulatedImpairments / us-gaap_StatementBusinessSegmentsAxis = adsk_ManufacturingMember | 389.9 adsk_GoodwillBeforeAccumulatedImpairments / us-gaap_StatementBusinessSegmentsAxis = adsk_ManufacturingMember |  |  |
Accumulated impairment losses | 0 adsk_GoodwillAccumulatedImpairments / us-gaap_StatementBusinessSegmentsAxis = adsk_ManufacturingMember | 0 adsk_GoodwillAccumulatedImpairments / us-gaap_StatementBusinessSegmentsAxis = adsk_ManufacturingMember |  |  |
Goodwill, beginning of period | 411.6 us-gaap_Goodwill / us-gaap_StatementBusinessSegmentsAxis = adsk_ManufacturingMember | 389.9 us-gaap_Goodwill / us-gaap_StatementBusinessSegmentsAxis = adsk_ManufacturingMember |  |  |
Effect of foreign currency translation, purchase accounting adjustments, and other | (9.0)us-gaap_GoodwillTranslationAndPurchaseAccountingAdjustments / us-gaap_StatementBusinessSegmentsAxis = adsk_ManufacturingMember | (0.5)us-gaap_GoodwillTranslationAndPurchaseAccountingAdjustments / us-gaap_StatementBusinessSegmentsAxis = adsk_ManufacturingMember |  |  |
Goodwill before accumulated impairments | 422.7 adsk_GoodwillBeforeAccumulatedImpairments / us-gaap_StatementBusinessSegmentsAxis = adsk_ManufacturingMember | 411.6 adsk_GoodwillBeforeAccumulatedImpairments / us-gaap_StatementBusinessSegmentsAxis = adsk_ManufacturingMember |  |  |
Accumulated impairment losses | 0 adsk_GoodwillAccumulatedImpairments / us-gaap_StatementBusinessSegmentsAxis = adsk_ManufacturingMember | 0 adsk_GoodwillAccumulatedImpairments / us-gaap_StatementBusinessSegmentsAxis = adsk_ManufacturingMember |  |  |
Goodwill, end of period | 422.7 us-gaap_Goodwill / us-gaap_StatementBusinessSegmentsAxis = adsk_ManufacturingMember | 411.6 us-gaap_Goodwill / us-gaap_StatementBusinessSegmentsAxis = adsk_ManufacturingMember |  |  |
Manufacturing | Delcam plc |  |  |  |  |
Goodwill [Roll Forward] |  |  |  |  |
Goodwill acquired during period | 0 us-gaap_GoodwillAcquiredDuringPeriod / us-gaap_BusinessAcquisitionAxis = adsk_DelcamMember / us-gaap_StatementBusinessSegmentsAxis = adsk_ManufacturingMember |  |  |  |
Manufacturing | Within Technologies Limited |  |  |  |  |
Goodwill [Roll Forward] |  |  |  |  |
Goodwill acquired during period | 0 us-gaap_GoodwillAcquiredDuringPeriod / us-gaap_BusinessAcquisitionAxis = adsk_WithinTechnologiesLimitedMember / us-gaap_StatementBusinessSegmentsAxis = adsk_ManufacturingMember |  |  |  |
Manufacturing | Shotgun Software Inc. |  |  |  |  |
Goodwill [Roll Forward] |  |  |  |  |
Goodwill acquired during period | 0 us-gaap_GoodwillAcquiredDuringPeriod / us-gaap_BusinessAcquisitionAxis = adsk_ShotgunMember / us-gaap_StatementBusinessSegmentsAxis = adsk_ManufacturingMember |  |  |  |
Manufacturing | Graitec SA |  |  |  |  |
Goodwill [Roll Forward] |  |  |  |  |
Goodwill acquired during period |  | 0 us-gaap_GoodwillAcquiredDuringPeriod / us-gaap_BusinessAcquisitionAxis = adsk_GraitecSAMember / us-gaap_StatementBusinessSegmentsAxis = adsk_ManufacturingMember |  |  |
Manufacturing | Goodwill acquired from other acquisitions |  |  |  |  |
Goodwill [Roll Forward] |  |  |  |  |
Goodwill acquired during period | 20.1 us-gaap_GoodwillAcquiredDuringPeriod / us-gaap_BusinessAcquisitionAxis = adsk_OtherAcquisitionsMember / us-gaap_StatementBusinessSegmentsAxis = adsk_ManufacturingMember | 22.2 us-gaap_GoodwillAcquiredDuringPeriod / us-gaap_BusinessAcquisitionAxis = adsk_OtherAcquisitionsMember / us-gaap_StatementBusinessSegmentsAxis = adsk_ManufacturingMember |  |  |
Media and Entertainment |  |  |  |  |
Goodwill [Roll Forward] |  |  |  |  |
Goodwill before accumulated impairments | 190.0 adsk_GoodwillBeforeAccumulatedImpairments / us-gaap_StatementBusinessSegmentsAxis = adsk_MediaAndEntertainmentMember | 191.0 adsk_GoodwillBeforeAccumulatedImpairments / us-gaap_StatementBusinessSegmentsAxis = adsk_MediaAndEntertainmentMember |  |  |
Accumulated impairment losses | (149.2)adsk_GoodwillAccumulatedImpairments / us-gaap_StatementBusinessSegmentsAxis = adsk_MediaAndEntertainmentMember | (149.2)adsk_GoodwillAccumulatedImpairments / us-gaap_StatementBusinessSegmentsAxis = adsk_MediaAndEntertainmentMember |  |  |
Goodwill, beginning of period | 40.8 us-gaap_Goodwill / us-gaap_StatementBusinessSegmentsAxis = adsk_MediaAndEntertainmentMember | 41.8 us-gaap_Goodwill / us-gaap_StatementBusinessSegmentsAxis = adsk_MediaAndEntertainmentMember |  |  |
Effect of foreign currency translation, purchase accounting adjustments, and other | (3.3)us-gaap_GoodwillTranslationAndPurchaseAccountingAdjustments / us-gaap_StatementBusinessSegmentsAxis = adsk_MediaAndEntertainmentMember | (1.0)us-gaap_GoodwillTranslationAndPurchaseAccountingAdjustments / us-gaap_StatementBusinessSegmentsAxis = adsk_MediaAndEntertainmentMember |  |  |
Goodwill before accumulated impairments | 245.2 adsk_GoodwillBeforeAccumulatedImpairments / us-gaap_StatementBusinessSegmentsAxis = adsk_MediaAndEntertainmentMember | 190.0 adsk_GoodwillBeforeAccumulatedImpairments / us-gaap_StatementBusinessSegmentsAxis = adsk_MediaAndEntertainmentMember |  |  |
Accumulated impairment losses | (149.2)adsk_GoodwillAccumulatedImpairments / us-gaap_StatementBusinessSegmentsAxis = adsk_MediaAndEntertainmentMember | (149.2)adsk_GoodwillAccumulatedImpairments / us-gaap_StatementBusinessSegmentsAxis = adsk_MediaAndEntertainmentMember |  |  |
Goodwill, end of period | 96.0 us-gaap_Goodwill / us-gaap_StatementBusinessSegmentsAxis = adsk_MediaAndEntertainmentMember | 40.8 us-gaap_Goodwill / us-gaap_StatementBusinessSegmentsAxis = adsk_MediaAndEntertainmentMember |  |  |
Media and Entertainment | Delcam plc |  |  |  |  |
Goodwill [Roll Forward] |  |  |  |  |
Goodwill acquired during period | 0 us-gaap_GoodwillAcquiredDuringPeriod / us-gaap_BusinessAcquisitionAxis = adsk_DelcamMember / us-gaap_StatementBusinessSegmentsAxis = adsk_MediaAndEntertainmentMember |  |  |  |
Media and Entertainment | Within Technologies Limited |  |  |  |  |
Goodwill [Roll Forward] |  |  |  |  |
Goodwill acquired during period | 0 us-gaap_GoodwillAcquiredDuringPeriod / us-gaap_BusinessAcquisitionAxis = adsk_WithinTechnologiesLimitedMember / us-gaap_StatementBusinessSegmentsAxis = adsk_MediaAndEntertainmentMember |  |  |  |
Media and Entertainment | Shotgun Software Inc. |  |  |  |  |
Goodwill [Roll Forward] |  |  |  |  |
Goodwill acquired during period | 43.2 us-gaap_GoodwillAcquiredDuringPeriod / us-gaap_BusinessAcquisitionAxis = adsk_ShotgunMember / us-gaap_StatementBusinessSegmentsAxis = adsk_MediaAndEntertainmentMember |  |  |  |
Media and Entertainment | Graitec SA |  |  |  |  |
Goodwill [Roll Forward] |  |  |  |  |
Goodwill acquired during period |  | 0 us-gaap_GoodwillAcquiredDuringPeriod / us-gaap_BusinessAcquisitionAxis = adsk_GraitecSAMember / us-gaap_StatementBusinessSegmentsAxis = adsk_MediaAndEntertainmentMember |  |  |
Media and Entertainment | Goodwill acquired from other acquisitions |  |  |  |  |
Goodwill [Roll Forward] |  |  |  |  |
Goodwill acquired during period | 15.3 us-gaap_GoodwillAcquiredDuringPeriod / us-gaap_BusinessAcquisitionAxis = adsk_OtherAcquisitionsMember / us-gaap_StatementBusinessSegmentsAxis = adsk_MediaAndEntertainmentMember | 0 us-gaap_GoodwillAcquiredDuringPeriod / us-gaap_BusinessAcquisitionAxis = adsk_OtherAcquisitionsMember / us-gaap_StatementBusinessSegmentsAxis = adsk_MediaAndEntertainmentMember |  |  |
Delcam plc |  |  |  |  |
Goodwill [Roll Forward] |  |  |  |  |
Goodwill before accumulated impairments | 0 adsk_GoodwillBeforeAccumulatedImpairments / us-gaap_StatementBusinessSegmentsAxis = adsk_DelcamMember |  |  |  |
Accumulated impairment losses | 0 adsk_GoodwillAccumulatedImpairments / us-gaap_StatementBusinessSegmentsAxis = adsk_DelcamMember |  |  |  |
Goodwill, beginning of period | 0 us-gaap_Goodwill / us-gaap_StatementBusinessSegmentsAxis = adsk_DelcamMember |  |  |  |
Effect of foreign currency translation, purchase accounting adjustments, and other | (13.1)us-gaap_GoodwillTranslationAndPurchaseAccountingAdjustments / us-gaap_StatementBusinessSegmentsAxis = adsk_DelcamMember |  |  |  |
Goodwill before accumulated impairments | 183.0 adsk_GoodwillBeforeAccumulatedImpairments / us-gaap_StatementBusinessSegmentsAxis = adsk_DelcamMember |  |  |  |
Accumulated impairment losses | 0 adsk_GoodwillAccumulatedImpairments / us-gaap_StatementBusinessSegmentsAxis = adsk_DelcamMember |  |  |  |
Goodwill, end of period | 183.0 us-gaap_Goodwill / us-gaap_StatementBusinessSegmentsAxis = adsk_DelcamMember |  |  |  |
Delcam plc | Delcam plc |  |  |  |  |
Goodwill [Roll Forward] |  |  |  |  |
Goodwill acquired during period | 196.1 us-gaap_GoodwillAcquiredDuringPeriod / us-gaap_BusinessAcquisitionAxis = adsk_DelcamMember / us-gaap_StatementBusinessSegmentsAxis = adsk_DelcamMember |  |  |  |
Delcam plc | Within Technologies Limited |  |  |  |  |
Goodwill [Roll Forward] |  |  |  |  |
Goodwill acquired during period |  |  |  |  |
Delcam plc | Shotgun Software Inc. |  |  |  |  |
Goodwill [Roll Forward] |  |  |  |  |
Goodwill acquired during period |  |  |  |  |
Delcam plc | Goodwill acquired from other acquisitions |  |  |  |  |
Goodwill [Roll Forward] |  |  |  |  |
Goodwill acquired during period |  |  |  |  |

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