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Schedule of Inventories (Detail) - USD ($) $ in Thousands | Jun. 30, 2023 | Mar. 31, 2023
--- | --- | ---
Inventory [Line Items] |  |
Inventories | $ 302,525 | $ 291,882
Raw Materials and Material-in-Progress [Member] |  |
Inventory [Line Items] |  |
Inventories | 98,997 | 96,880
Finished Cement [Member] |  |
Inventory [Line Items] |  |
Inventories | 51,122 | 46,364
Aggregates [Member] |  |
Inventory [Line Items] |  |
Inventories | 10,933 | 8,309
Gypsum Wallboard [Member] |  |
Inventory [Line Items] |  |
Inventories | 5,200 | 4,244
Paperboard [Member] |  |
Inventory [Line Items] |  |
Inventories | 8,282 | 8,651
Repair Parts and Supplies [Member] |  |
Inventory [Line Items] |  |
Inventories | 110,962 | 112,885
Fuel and Coal [Member] |  |
Inventory [Line Items] |  |
Inventories | $ 17,029 | $ 14,549

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