Other Intangible Assets, Net (Tables)

3 Months Ended

Apr. 30, 2012

Notes to Financial Statements [Abstract]

Schedule of Acquired Intangible Assets by Major Class

Other intangible assets that include purchased technologies, customer relationships, trade names, patents, user lists and the related accumulated amortization were as follows:

	April 30, 2012			January 31, 2012
Purchased technologies, at cost (1)	$	400.5		$	400.5
Customer relationships, trade names, patents, user list, at cost (2)	215.0			215.3
	615.5			615.8
Less: Accumulated amortization (1)	(484.3		)	(467.0		)
Other intangible assets, net	$	131.2		$	148.8

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(1) As of April 30, 2012, the purchased technologies balances are presented gross. Previously, Autodesk reported the cost and amortization balance for purchased technologies net of fully amortized intangible assets. For comparability, the presentation of the purchased technologies cost and amortization balances at January 31, 2012 were adjusted to align to current year presentation.

(2) Included in “Other assets” in the accompanying Condensed Consolidated Balance Sheets. Customer relationships and trade names include the effects of foreign currency translation.