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Segment Breakdown of Goodwill (Detail) - USD ($) $ in Thousands | Jun. 30, 2022 | Mar. 31, 2022
--- | --- | ---
Segment Reporting Information [Line Items] |  |
Goodwill | $ 367,880 | $ 329,137
Cement [Member] |  |
Segment Reporting Information [Line Items] |  |
Goodwill | 203,342 | 203,342
Concrete and Aggregates [Member] |  |
Segment Reporting Information [Line Items] |  |
Goodwill | 40,382 | 1,639
Gypsum Wallboard [Member] |  |
Segment Reporting Information [Line Items] |  |
Goodwill | 116,618 | 116,618
Paperboard [Member] |  |
Segment Reporting Information [Line Items] |  |
Goodwill | $ 7,538 | $ 7,538

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