Property Plant and Equipment - Schedule of Property, Plant and Equipment (Detail) - USD ($) $ in Thousands |
Mar. 31, 2026 |
Mar. 31, 2025 |
|---|---|---|
| Property, Plant and Equipment [Line Items] | ||
| Property, Plant and Equipment, Gross | $ 3,827,322 | $ 3,423,128 |
| Accumulated Depreciation | (1,762,700) | (1,630,146) |
| Property, Plant and Equipment, Net | 2,064,622 | 1,792,982 |
| Land And Quarries [Member] | ||
| Property, Plant and Equipment [Line Items] | ||
| Property, Plant and Equipment, Gross | 377,572 | 364,547 |
| Plants [Member] | ||
| Property, Plant and Equipment [Line Items] | ||
| Property, Plant and Equipment, Gross | 2,730,743 | 2,567,537 |
| Buildings Machinery And Equipment [Member] | ||
| Property, Plant and Equipment [Line Items] | ||
| Property, Plant and Equipment, Gross | 301,209 | 312,872 |
| Construction in Progress [Member] | ||
| Property, Plant and Equipment [Line Items] | ||
| Property, Plant and Equipment, Gross | $ 417,798 | $ 178,172 |