Income Taxes - Reconciled Tax at Statutory Rates (Detail) - USD ($) $ in Millions |
12 Months Ended | ||
|---|---|---|---|
Mar. 31, 2016 |
Mar. 31, 2015 |
Mar. 31, 2014 |
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| Income Tax Disclosure [Abstract] | |||
| Income tax (expense) benefit at statutory tax rates | $ (79.1) | $ (75.0) | $ 6.2 |
| US state income taxes, net of the federal benefit | (3.6) | (2.4) | (1.8) |
| Asbestos adjustments | (0.8) | 48.3 | 30.2 |
| Expenses not deductible | (2.0) | (3.4) | (2.1) |
| Non-assessable items | 1.9 | 0.5 | 0.6 |
| US manufacturing deduction | 4.1 | 2.6 | 1.2 |
| Foreign taxes on domestic income | (5.7) | (0.7) | |
| Amortization of intangibles | 2.9 | 2.8 | 1.7 |
| Taxes on foreign income | (7.4) | (4.5) | (2.9) |
| Tax assessment in dispute | 10.7 | ||
| Other items | 3.6 | 0.5 | 1.1 |
| Total income tax (expense) benefit | $ (86.1) | $ (31.3) | $ 44.9 |
| Effective tax rate | 26.10% | 9.70% | (82.20%) |
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- Definition Income tax reconciliation amortization of intangibles. No definition available.
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- Definition Income tax reconciliation asbestos adjustments. No definition available.
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- Definition Income tax reconciliation foreign taxes on domestic income No definition available.
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- Definition Income tax reconciliation non assessable items. 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 or accrued on foreign interest, royalties and dividends. 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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- References No definition available.
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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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- Definition Amount of the difference between reported income tax expense (benefit) and the expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to deduction for qualified production activity. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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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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- 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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- 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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- 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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