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Income Taxes - Reconciled Tax at Statutory Rates (Detail) (USD $)
In Millions, unless otherwise specified |
12 Months Ended | ||
|---|---|---|---|
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Mar. 31, 2014
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Mar. 31, 2013
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Mar. 31, 2012
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| Income Tax Disclosure [Abstract] | |||
| Income tax benefit (expense) at statutory tax rates | $ 6.2 | $ 8.8 | $ (28.4) |
| US state income taxes, net of the federal benefit | (1.8) | (0.1) | (0.8) |
| Asbestos - effect of foreign exchange | 30.2 | (0.3) | (1.9) |
| Expenses not deductible | (2.1) | (2.0) | (0.7) |
| Non-assessable items | 0.6 | 1.8 | 0.4 |
| Repatriation of foreign earnings | 2.7 | (0.1) | |
| Amortisation of intangibles | 1.7 | 2.0 | 1.7 |
| Taxes on foreign income | (2.9) | (1.6) | 2.6 |
| Tax assessment in dispute | 10.7 | 478.4 | |
| Other items | 2.3 | 0.5 | 2.0 |
| Total income tax benefit | $ 44.9 | $ 11.8 | $ 453.2 |
| Effective tax rate | (82.20%) | (35.00%) | (299.90%) |
| X | ||||||||||
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- Definition
Income tax reconciliation amortisation of intangibles. No definition available.
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- Definition
Undistributed earnings of US subsidiaries expected to be repatriated in fiscal year 2012. No definition available.
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- Definition
Income tax reconciliation non assessable items. No definition available.
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- Definition
Income tax reconciliation nondeductible expense effect of foreign exchange on asbestos. No definition available.
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- Definition
Tax assessment in dispute related to Australian Taxation Office - Amended Assessment. No definition available.
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- Definition
Taxes on subsidiary foreign income and withholding taxes paid on interest. No definition available.
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- Definition
Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Details
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- Definition
Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The amount of income tax expense or benefit for the period computed by applying the domestic federal statutory tax rates to pretax income from continuing operations. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to nondeductible expenses. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to other adjustments. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to state and local income tax expense (benefit). Reference 1: http://www.xbrl.org/2003/role/presentationRef
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