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v3.25.2

Segment Information - Financial Information Related to Operations by Segment (Detail) $ in Thousands | 3 Months Ended |
--- | --- | ---
Jun. 30, 2025 USD ($) kt | Jun. 30, 2024 USD ($) kt | Mar. 31, 2025 USD ($)
Segment Reporting Information [Line Items] |  |  |  |
Revenue |  | $ 634,690 | $ 608,689 |
Corporate General and Administrative Expense |  | (20,783) | (15,649) |
Other Non-Operating Income (Loss) |  | 954 | 2,683 |
Interest Expense, net |  | (11,716) | (10,684) |
Earnings before Income Taxes |  | 157,858 | 170,934 |
Capital Expenditures |  | 76,097 | 33,128 |
Depreciation, Depletion and Amortization |  | 40,644 | 38,350 |
Segment Assets |  | 3,397,314 |  | $ 3,264,588
External Customers [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Revenue |  | 634,690 | 608,689 |
Intersegment [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Revenue |  | 35,837 | 38,044 |
Joint Venture [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Revenue |  | 27,283 | 29,310 |
Operating Segments [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Revenue |  | 697,810 | 676,043 |
Freight and Delivery |  | 74,339 | 69,709 |
Parts, Supplies, and Services (Includes Maintenance) |  | 94,803 | 91,442 |
Energy |  | 47,655 | 46,686 |
Raw Materials |  | 118,778 | 120,592 |
Labor and Fixed Costs |  | 76,514 | 70,544 |
Depreciation, Depletion and Amortization | [1] | 39,820 | 37,610 |
Purchased Cement |  | 17,274 | 20,819 |
Other Segment Items |  | 39,224 | 24,057 |
Segment Profit |  | 189,403 | 194,584 |
Intersegment Eliminations [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Revenue |  | (35,837) | (38,044) |
Consolidation, Eliminations [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Revenue |  | (27,283) | (29,310) |
Cement [Member] | External Customers [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Revenue |  | 310,326 | 299,572 |
Cement [Member] | Intersegment [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Revenue |  | 10,013 | 10,280 |
Cement [Member] | Joint Venture [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Revenue |  | 27,283 | 29,310 |
Cement [Member] | Operating Segments [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Revenue |  | $ 347,622 | $ 339,162 |
Cement Sales Volume | kt |  | 1,993 | 1,947 |
Operating Earnings |  | $ 81,084 | $ 89,125 |
Capital Expenditures |  | 45,995 | 18,794 |
Freight and Delivery |  | 28,078 | 27,148 |
Parts, Supplies, and Services (Includes Maintenance) |  | 74,706 | 74,906 |
Energy |  | 32,780 | 33,897 |
Raw Materials |  | 21,160 | 20,998 |
Labor and Fixed Costs |  | 44,509 | 41,621 |
Depreciation, Depletion and Amortization | [1] | 22,838 | 22,917 |
Purchased Cement |  | 17,274 | 20,819 |
Other Segment Items |  | 25,193 | 7,731 |
Segment Profit |  | 81,084 | $ 89,125 |
Segment Assets |  | $ 2,240,842 |  | 2,172,459
Cement [Member] | Operating Segments [Member] | Wholly-Owned [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Cement Sales Volume | kt |  | 1,835 | 1,767 |
Operating Earnings |  | $ 77,280 | $ 81,409 |
Cement [Member] | Operating Segments [Member] | Joint Venture [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Cement Sales Volume | kt |  | 158 | 180 |
Operating Earnings |  | $ 3,804 | $ 7,716 |
Concrete and Aggregates [Member] | External Customers [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Revenue |  | 73,716 | 61,038 |
Concrete and Aggregates [Member] | Intersegment [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Revenue |  | 3,852 | 3,777 |
Concrete and Aggregates [Member] | Joint Venture [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Revenue |  | 0 | 0 |
Concrete and Aggregates [Member] | Operating Segments [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Revenue |  | 77,568 | 64,815 |
Capital Expenditures |  | 5,603 | 6,589 |
Freight and Delivery |  | 6,889 | 6,032 |
Parts, Supplies, and Services (Includes Maintenance) |  | 11,633 | 8,095 |
Energy |  | 2,200 | 1,927 |
Raw Materials |  | 29,057 | 29,901 |
Labor and Fixed Costs |  | 10,023 | 8,000 |
Depreciation, Depletion and Amortization | [1] | 6,791 | 4,530 |
Purchased Cement |  | 0 | 0 |
Other Segment Items |  | 4,800 | 3,350 |
Segment Profit |  | 6,175 | 2,980 |
Segment Assets |  | 411,398 |  | 408,792
Gypsum Wallboard [Member] | External Customers [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Revenue |  | 221,516 | 217,826 |
Gypsum Wallboard [Member] | Intersegment [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Revenue |  | 0 | 0 |
Gypsum Wallboard [Member] | Joint Venture [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Revenue |  | 0 | 0 |
Gypsum Wallboard [Member] | Operating Segments [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Revenue |  | 221,516 | 217,826 |
Capital Expenditures |  | 21,995 | 3,280 |
Freight and Delivery |  | 39,372 | 36,485 |
Parts, Supplies, and Services (Includes Maintenance) |  | 5,354 | 3,930 |
Energy |  | 8,597 | 7,597 |
Raw Materials |  | 46,667 | 47,071 |
Labor and Fixed Costs |  | 16,117 | 15,462 |
Depreciation, Depletion and Amortization | [1] | 6,519 | 6,473 |
Purchased Cement |  | 0 | 0 |
Other Segment Items |  | 6,249 | 6,832 |
Segment Profit |  | 92,641 | 93,976 |
Segment Assets |  | 446,772 |  | 429,268
Recycled Paperboard [Member] | External Customers [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Revenue |  | 29,132 | 30,253 |
Recycled Paperboard [Member] | Intersegment [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Revenue |  | 21,972 | 23,987 |
Recycled Paperboard [Member] | Joint Venture [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Revenue |  | 0 | 0 |
Recycled Paperboard [Member] | Operating Segments [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Revenue |  | 51,104 | 54,240 |
Capital Expenditures |  | 1,315 | 3,561 |
Freight and Delivery |  | 0 | 44 |
Parts, Supplies, and Services (Includes Maintenance) |  | 3,110 | 4,511 |
Energy |  | 4,078 | 3,265 |
Raw Materials |  | 21,894 | 22,622 |
Labor and Fixed Costs |  | 5,865 | 5,461 |
Depreciation, Depletion and Amortization | [1] | 3,672 | 3,690 |
Purchased Cement |  | 0 | 0 |
Other Segment Items |  | 2,982 | 6,144 |
Segment Profit |  | 9,503 | 8,503 |
Segment Assets |  | 161,091 |  | 166,673
Corporate and Other [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Capital Expenditures |  | 1,189 | $ 904 |
Segment Assets |  | $ 137,211 |  | $ 87,396
[1] | Depreciation, Depletion, and Amortization for corporate assets was $824 and $740 for the three months ended June 30, 2025, and 2024, respectively.

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