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Product Warranties (Details) (USD $)
In Millions, unless otherwise specified
3 Months Ended
Jun. 30, 2013
Jun. 30, 2012
Changes in the warranty liability [Roll Forward]    
Balance, beginning of period $ 12.6 $ 11.4
Accruals for warranties issued 1.4 1.3
Accruals (reversals) related to pre-existing warranties 2.5 (0.5)
Settlements (4.0) (1.4)
Effect of exchange rate changes (0.2) (0.3)
Balance, end of period $ 12.3 $ 10.5