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Derivative Instruments (Tables) | 12 Months Ended
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Mar. 31, 2023
Derivative Instruments and Hedging Activities Disclosure [Abstract] |
Schedule of Derivative Instruments | The following table sets forth the total outstanding notional amount and the fair value of the Company’s derivative instruments held at 31 March 2023 and 2022:
|  |  |  |  | Fair Value as of
(Millions of US dollars) | Notional Amount |  | 31 March 2023 |  | 31 March 2022
Derivatives not accounted for as hedges | 31 March 2023 |  | 31 March 2022 |  | Assets |  | Liabilities |  | Assets |  | Liabilities
Foreign currency forward contracts | $ | 269.0 |  |  | $ | 251.0 |  |  | $ | 2.2 |  |  | $ | 11.4 |  |  | $ | 2.0 |  |  | $ | 1.9 |
Gain (Loss) on the Company's Foreign Currency Forward Contracts Recorded in the Consolidated Statements of Operations and Comprehensive Income | The following table sets forth the gain and loss on the Company’s foreign currency forward contracts recorded in the Company's consolidated statements of operations and comprehensive income as follows:
| 31 March
(Millions of US dollars) | 2023 |  | 2022 |  | 2021
Asbestos adjustments loss (gain) | $ | 24.5 |  |  | $ | 5.3 |  |  | $ | (11.7) |
Selling, general and administrative expenses | 4.0 |  |  | (2.1) |  |  | 7.2 |
Total loss (gain) | $ | 28.5 |  |  | $ | 3.2 |  |  | $ | (4.5) |

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