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Subsequent Events	3 Months Ended
Subsequent Events	Apr. 30, 2014
Subsequent Events [Abstract]
Subsequent Events	Subsequent Events On May 29, 2014, Autodesk acquired all the outstanding shares of Within Technologies Limited ("Within”) for approximately $88.0 million cash. Within is a United Kingdom based developer of design and simulation software for next generation manufacturing processes. The Within acquisition will accelerate Autodesk’s development of tools and technologies for advanced manufacturing. Within will be integrated into Autodesk’s PSEB reportable segment. The initial accounting for this acquisition was not complete as of June 3, 2014, due to the timing of the acquisition. Autodesk used its non-U.S.-based cash for the transaction.