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Schedule of Inventories (Detail) - USD ($) $ in Thousands	Dec. 31, 2022	Mar. 31, 2022
Inventory [Line Items]
Inventories	$ 247,155	$ 236,661
Raw Materials and Material-in-Progress [Member]
Inventory [Line Items]
Inventories	72,114	81,308
Finished Cement [Member]
Inventory [Line Items]
Inventories	35,617	38,769
Aggregates [Member]
Inventory [Line Items]
Inventories	7,329	3,558
Gypsum Wallboard [Member]
Inventory [Line Items]
Inventories	6,778	3,452
Paperboard [Member]
Inventory [Line Items]
Inventories	8,091	7,462
Repair Parts and Supplies [Member]
Inventory [Line Items]
Inventories	106,426	91,593
Fuel and Coal [Member]
Inventory [Line Items]
Inventories	$ 10,800	$ 10,519

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+ References

No definition available.

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Amount after valuation and LIFO reserves of inventory expected to be sold, or consumed within one year or operating cycle, if longer.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(6))
-URI https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
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Reference 3: http://www.xbrl.org/2003/role/exampleRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 852
-SubTopic 10
-Section 55
-Paragraph 10
-URI https://asc.fasb.org/extlink&oid=84165509&loc=d3e56426-112766

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