Product Warranties, Operating Leases and Other Commitments (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
Mar. 31, 2013	Mar. 31, 2012	Mar. 31, 2011
Product Warranties, Operating Leases and Other Commitments [Abstract]
Product warranty period, minimum	1 year
Product warranty period, maximum	5 years
Changes in the warranty liability [Roll Forward]
Balance, beginning of period	$ 11.4	$ 14.7
Accruals for warranties issued	4.9	6.6
Accruals (reversals) related to pre-existing warranties	2.7	(1.1)
Settlements	(6.1)	(8.4)
Effect of exchange rate changes	(0.3)	(0.4)
Balance, end of period	12.6	11.4	14.7
Indemnification period, minimum	1 year
Indemnification period, maximum	15 years
Capital expenditure commitments	11.9
Rental expense	11.3	9.0	8.8
Future minimum rental commitments under non-cancelable operating leases [Abstract]
2014	6.5
2015	4.5
2016	3.0
2017	2.2
2018	1.8
2019 and beyond	4.3
Total future minimum rental commitments	$ 22.3

Capital expenditure commitments by the entity.

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Maximum indemnification period related to the sale or purchase of an entity or facility.

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Minimum indemnification period related to the sale or purchase of an entity or facility.

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Maximum product warranty period.

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Minimum product warranty period.

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Amount of required minimum rental payments for leases having an initial or remaining non-cancelable letter-terms in excess of one year.

+ References

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-Name Statement of Financial Accounting Standard (FAS)

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Amount of required minimum rental payments maturing in the next fiscal year following the latest fiscal year for operating leases having an initial or remaining non-cancelable letter-terms in excess of one year.

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Amount of required minimum rental payments maturing in the fifth fiscal year following the latest fiscal year for operating leases having an initial or remaining non-cancelable letter-terms in excess of one year.

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Amount of required minimum rental payments maturing in the forth fiscal year following the latest fiscal year for operating leases having an initial or remaining non-cancelable letter-terms in excess of one year.

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Amount of required minimum rental payments maturing in the third fiscal year following the latest fiscal year for operating leases having an initial or remaining non-cancelable letter-terms in excess of one year.

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Amount of required minimum rental payments maturing in the second fiscal year following the latest fiscal year for operating leases having an initial or remaining non-cancelable letter-terms in excess of one year.

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Amount of required minimum rental payments maturing after the fifth fiscal year following the latest fiscal year for operating leases having an initial or remaining non-cancelable letter-terms in excess of one year.

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Rental expense for the reporting period incurred under operating leases, including minimum and any contingent rent expense, net of related sublease income.

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Amount as of the balance sheet date of the aggregate standard product warranty liability. Does not include the balance for the extended product warranty liability.

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Increase or Decrease in standard product warranty liability due to currency translation. Does not include any Increase or Decrease in an extended product warranty liability due to currency translation.

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Represents the aggregate decrease in the liability for payments made (in cash or in kind) to satisfy claims under the terms of the standard product warranty. Does not include any Increase or Decrease in the liability for payments related to extended product warranties.

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Represents the aggregate Increase or Decrease in the liability during the reporting period for accruals related to preexisting standard product warranties (including adjustments related to changes in estimates). Does not include any Increase or Decrease in the liability for accruals related to extended product warranties.

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Represents the aggregate increase in the liability for accruals related to standard product warranties issued during the reporting period. Does not include any increase in the liability for accruals related to extended product warranties.

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