Restructuring and Impairment Charges (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended		3 Months Ended	21 Months Ended	3 Months Ended	9 Months Ended		3 Months Ended	9 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2013 Europe segment [Member]	Dec. 31, 2013 Europe segment [Member]	Dec. 31, 2012 North America and Europe segments [Member]	Dec. 31, 2012 North America and Europe segments [Member]	Dec. 31, 2013 Cost of Sales [Member]	Dec. 31, 2013 Restructuring Expense [Member]	Dec. 31, 2013 Restructuring Expense [Member]
Restructuring Cost and Reserve [Line Items]
Asset impairment charges	$ 2.0	$ 8.3	$ 2.0	$ 25.1	$ 2.0	$ 26.1	$ 8.3	$ 25.1
Changes in accrued severance related to restructuring program [Roll Forward]
Beginning Balance	10.7	4.7	11.6	0
Additions	9.0	1.0	9.8	6.6
Payments	(1.5)	(0.9)	(3.7)	(1.9)
Effect of exchange rate changes	0.3	0.2	0.8	0.3
Ending Balance	18.5	5.0	18.5	5.0
Restructuring and repositioning expenses [Abstract]
Employee severance and related benefits	9.0	1.0	9.8	6.6		24.7
Accelerated depreciation	0	0	4.3	0
Other repositioning costs	0.4	0.4	0.7	0.7		7.1
Total restructuring and repositioning expenses	$ 9.4	$ 1.4	$ 14.8	$ 7.3					$ 4.3	$ 9.4	$ 10.5