Goodwill (Tables)

6 Months Ended

Jul. 31, 2016

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of Goodwill

The change in the carrying amount of goodwill by reportable segment during the six months ended July 31, 2016 is as follows:

	Platform Solutions and Emerging Business		Architecture, Engineering and Construction		Manufacturing			Media and Entertainment			Total
Balances as of January 31, 2016
Goodwill	$	386.9	$	427.2	$	613.9		$	256.2		$	1,684.2
Accumulated impairment losses	—		—		—			(149.2		)	(149.2		)
	386.9		427.2		613.9			107.0			1,535.0
Addition arising from other acquisitions	17.4		—		13.6			31.8			62.8
Effect of foreign currency translation, purchase accounting adjustments, and other	0.7		2.0		(3.5		)	0.4			(0.4		)
Balances as of July 31, 2016
Goodwill	405.0		429.2		624.0			288.4			1,746.6
Accumulated impairment losses	—		—		—			(149.2		)	(149.2		)
	$	405.0	$	429.2	$	624.0		$	139.2		$	1,597.4