Summary of accounting policies - Accounts Receivable, Net and Product Warranty Narrative (Details) |
12 Months Ended |
|---|---|
Mar. 31, 2026 | |
| Minimum | |
| Organization Consolidation And Presentation Of Financial Statements [Line Items] | |
| Trade receivables, term | 30 days |
| Standard product warranty term | 2 years |
| Maximum | |
| Organization Consolidation And Presentation Of Financial Statements [Line Items] | |
| Trade receivables, term | 90 days |
| Standard product warranty term | 10 years |