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Product Warranties | 12 Months Ended
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Mar. 31, 2015
Guarantees [Abstract] |
Product Warranties | 10. Product Warranties The Company offers various warranties on its products, including a 30-year limited warranty on certain of its fibre cement siding products in the United States. A typical warranty program requires the Company to replace defective products within a specified time period from the date of sale. While the Company’s warranty costs have historically been within its calculated estimates, it is possible that future warranty costs could differ from those estimates. The following are the changes in the product warranty provision:
|  | Years Ended 31 March |
(Millions of US dollars) |  | 2015 |  |  | 2014 |
Balance at beginning of period |  | $ | 31.4 |  |  | $ | 27.1 |
Accruals for product warranties |  |  | 16.0 |  |  |  | 14.0 |
Settlements made in cash or in kind |  |  | (12.2) |  |  |  | (9.7) |
Balance at end of period |  | $ | 35.2 |  |  | $ | 31.4 |

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- Definition The entire disclosure for standard and extended product warranties and other product guarantee contracts, including a tabular reconciliation of the changes in the guarantor's aggregate product warranty liability for the reporting period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 460 -SubTopic 10 -Section 50 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=6398077&loc=d3e12565-110249 + Details
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