Acquisitions (Tables)

12 Months Ended

Jan. 31, 2013

Business Combinations [Abstract]

Schedule of Recognized Identified Assets Acquired and Liabilities Assumed

The following table summarizes the fair value of the assets acquired and liabilities assumed by major class for each of the business combinations and technology acquisitions completed during the fiscal year ended January 31, 2013:

	Vela			Socialcam			Qontext		PI-VR			Other
Developed technologies	$	5.9		$	1.9		$	2.0	$	7.6		$	13.6
Customer relationships	3.6			—			—		6.7			1.5
Trade name	2.6			5.3			—		1.9			2.0
User List	—			22.3			—		—			—
Goodwill	57.5			23.0			24.0		36.8			46.1
Deferred Revenue (current and non-current)	(2.0		)	—			—		(0.1		)	—
Deferred tax asset (liability)	3.9			(9.4		)	—		(5.0		)	—
Net tangible assets (liabilities)	4.5			(0.2		)	—		0.7			—
	$	76.0		$	42.9		$	26.0	$	48.6		$	63.2

The following table summarizes the fair value of the assets acquired and liabilities assumed by major class for each of the business combinations and technology acquisitions completed during the fiscal year ended January 31, 2012:

	Scaleform			Blue Ridge			Instructables			MAP			Turbo Squid		T-Splines		Other
Developed technologies	$	5.9		$	6.0		$	0.4		$	2.5		$	26.0	$	2.1	$	21.7
Customer relationships	4.4			9.2			0.2			2.0			—		0.7		3.9
Trade name	1.4			1.1			1.6			0.9			—		0.4		1.2
User List	—			—			5.1			—			—		—		—
Patent	3.6			—			—			—			—		—		—
In-process research and development	0.6			0.6			—			—			—		—		—
Goodwill	22.6			22.3			24.4			12.7			—		19.8		28.3
Deferred Revenue	—			(1.2		)	—			—			—		—		—
Deferred tax asset (liability)	(2.5		)	(3.6		)	(1.6		)	(1.6		)	—		—		0.2
Net tangible assets (liabilities)	0.2			6.8			0.1			6.5			—		—		(0.5		)
Total	$	36.2		$	41.2		$	30.2		$	23.0		$	26.0	$	23.0	$	54.8