Goodwill (Tables)

3 Months Ended

Apr. 30, 2016

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of Goodwill

The change in the carrying amount of goodwill by reportable segment during the three months ended April 30, 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	—		—		13.6			31.8			45.4
Effect of foreign currency translation, purchase accounting adjustments, and other	6.3		4.4		(11.9		)	1.3			0.1
Balances as of April 30, 2016
Goodwill	393.2		431.6		615.6			289.3			1,729.7
Accumulated impairment losses	—		—		—			(149.2		)	(149.2		)
	$	393.2	$	431.6	$	615.6		$	140.1		$	1,580.5