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Significant accounting policies (Tables) | 12 Months Ended
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Mar. 31, 2018
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Summary of Estimated Useful Lives of Assets | The estimated useful lives of assets are as follows:
Category |  | Useful life
Buildings |  | 28 to 40 years
Plant and machinery |  | 5 to 21 years
Computer equipment and software |  | 2 to 7 years
Furniture, fixtures and equipment |  | 3 to 10 years
Vehicles |  | 4 to 5 years
Summary of Estimated Useful Lives of Aamortizable Intangible Assets | The estimated useful lives of the amortizable intangible assets for the current and comparative periods are as follows:
Category |  | Useful life |
Customer-related intangibles |  |  | 5 to 15 years |
Marketing related intangibles |  |  | 3 to 10 years |

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- Definition Disclosure of intangible assets estimated useful lives explanatory. + References No definition available. + Details
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- Definition The tabular disclosure of property plant and equipment estimated useful life. + References No definition available. + Details
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