Summary of Significant Accounting Policies Goodwill (Details) - USD ($) $ in Millions	12 Months Ended
	Jan. 31, 2016	Jan. 31, 2015
Goodwill [Roll Forward]
Goodwill, beginning balance	$ 38.8	$ 39.7
Goodwill, Translation Adjustments	(0.3)	(0.9)
Goodwill, ending balance	38.5	38.8
Americas [Member]
Goodwill [Roll Forward]
Goodwill, beginning balance	12.3	12.4
Goodwill, Translation Adjustments	(0.1)	(0.1)
Goodwill, ending balance	12.2	12.3
Asia-Pacific [Member]
Goodwill [Roll Forward]
Goodwill, beginning balance	0.3	0.3
Goodwill, Translation Adjustments	0.0	0.0
Goodwill, ending balance	0.3	0.3
Japan [Member]
Goodwill [Roll Forward]
Goodwill, beginning balance	1.1	1.1
Goodwill, Translation Adjustments	0.0	0.0
Goodwill, ending balance	1.1	1.1
Europe [Member]
Goodwill [Roll Forward]
Goodwill, beginning balance	1.1	1.1
Goodwill, Translation Adjustments	(0.1)	0.0
Goodwill, ending balance	1.0	1.1
Other [Member]
Goodwill [Roll Forward]
Goodwill, beginning balance	24.0	24.8
Goodwill, Translation Adjustments	(0.1)	(0.8)
Goodwill, ending balance	$ 23.9	$ 24.0