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Related Parties - Summary of Goods or Services Rendered to Related Parties (Details) - USD ($) $ in Thousands | 3 Months Ended | 10 Months Ended | 12 Months Ended
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Jun. 15, 2023 | Mar. 31, 2024 | Mar. 31, 2025 | Mar. 31, 2023
Disclosure of transactions between related parties [line items] |  |  |  |
Revenue - related parties | $ 1,215 |  |  | $ 3,728
SC Tubular Solutions (B) Sdn. Bhd. |  |  |  |
Disclosure of transactions between related parties [line items] |  |  |  |
Revenue - related parties | 560 |  |  | 2,250
Sumitomo Corporation Asia & Oceania Pte. Ltd. |  |  |  |
Disclosure of transactions between related parties [line items] |  |  |  |
Revenue - related parties | 395 |  |  | 486
Howco Metals Management Pte. Ltd. |  |  |  |
Disclosure of transactions between related parties [line items] |  |  |  |
Revenue - related parties |  |  |  | 2
Sumitomo Corporation |  |  |  |
Disclosure of transactions between related parties [line items] |  |  |  |
Revenue - related parties |  |  |  | 3
SC Tubular Solutions Malaysia Sdn. Bhd. |  |  |  |
Disclosure of transactions between related parties [line items] |  |  |  |
Revenue - related parties | $ 260 |  |  | $ 987

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