XML 58 R17.htm IDEA: XBRL DOCUMENT
v3.21.1

Product Warranties | 12 Months Ended
--- | ---
Mar. 31, 2021
Guarantees [Abstract] |
Product Warranties | Product Warranties The Company offers various warranties on its products, including a 30-year limited warranty on certain fiber 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. It is possible that future warranty costs could differ from those estimates. The following are the changes in the product warranty provision:
| 31 March
(Millions of US dollars) | 2021 |  | 2020 |  | 2019
Balance at beginning of period | $ | 42.4 |  |  | $ | 46.6 |  |  | $ | 52.8 |
Increase (Decrease) in accrual | 2.4 |  |  | 0.8 |  |  | (0.8) |
Acquired during the period | — |  |  | — |  |  | 0.5 |
Settlements made in cash or in kind | (5.2) |  |  | (5.0) |  |  | (5.9) |
Balance at end of period | $ | 39.6 |  |  | $ | 42.4 |  |  | $ | 46.6 |

X
- References No definition available. + Details
Name: | us-gaap_GuaranteesAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- 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://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 460 -URI http://asc.fasb.org/topic&trid=2155896 + Details
Name: | us-gaap_ProductWarrantyDisclosureTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration