Goodwill (Tables)

6 Months Ended

Jul. 31, 2015

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of Goodwill

The change in the carrying amount of goodwill by reporting unit during the six months ended July 31, 2015 is as follows:

	Platform Solutions and Emerging Business		Architecture, Engineering and Construction			Manufacturing			Media and Entertainment			Delcam (1)			Total
Balances as of January 31, 2015
Goodwill	$	327.5	$	427.0		$	422.7		$	245.2		$	183.0		$	1,605.4
Accumulated impairment losses	—		—			—			(149.2		)	—			(149.2		)
	327.5		427.0			422.7			96.0			183.0			1,456.2
Addition arising from other acquisitions	9.6		3.4			—			10.4			—			23.4
Effect of foreign currency translation, purchase accounting adjustments, and other	1.3		(1.9		)	(1.4		)	0.1			(3.9		)	(5.8		)
Balances as of July 31, 2015
Goodwill	338.4		428.5			421.3			255.7			179.1			1,623.0
Accumulated impairment losses	—		—			—			(149.2		)	—			(149.2		)
	$	338.4	$	428.5		$	421.3		$	106.5		$	179.1		$	1,473.8

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(1) Delcam is a separate reporting unit within our Manufacturing ("MFG") operating segment.