XML 25 R13.htm IDEA: XBRL DOCUMENT
v3.25.2

Property, Plant and Equipment | 9 Months Ended
--- | ---
Jun. 30, 2025
Property, Plant and Equipment [Abstract] |
Property, Plant and Equipment | Property, Plant and Equipment Property, plant and equipment at June 30, 2025 and September 30, 2024 consisted of the following (in thousands):
|  | June 30, 2025 |  | September 30, 2024
|  | (unaudited) |  |
Construction equipment |  | $ | 755,626 |  |  | $ | 570,044 |
Plants |  | 394,522 |  |  | 255,214 |
Mineral reserves |  | 221,095 |  |  | 69,334 |
Land and improvements |  | 188,149 |  |  | 94,182 |
Buildings |  | 53,984 |  |  | 39,838 |
Furniture and fixtures |  | 9,314 |  |  | 8,616 |
Leasehold improvements |  | 1,431 |  |  | 1,268 |
Total property, plant and equipment, gross |  | 1,624,121 |  |  | 1,038,496 |
Accumulated depreciation, depletion and amortization |  | (502,329) |  |  | (426,842) |
Construction in progress |  | 25,821 |  |  | 18,270 |
Total property, plant and equipment, net |  | $ | 1,147,613 |  |  | $ | 629,924 |
Depreciation, depletion and amortization expense related to property, plant and equipment was $38.2 million and $23.5 million for the three months ended June 30, 2025 and 2024, respectively, and $104.7 million and $67.6 million for the nine months ended June 30, 2025 and 2024, respectively.

X
- References No definition available. + Details
Name: | us-gaap_PropertyPlantAndEquipmentAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The entire disclosure for long-lived, physical asset used in normal conduct of business and not intended for resale. Includes, but is not limited to, work of art, historical treasure, and similar asset classified as collections. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 360 -Name Accounting Standards Codification -Publisher FASB -URI https://asc.fasb.org/360/tableOfContent Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name Accounting Standards Codification -Section 50 -Paragraph 6 -SubTopic 360 -Topic 958 -Publisher FASB -URI https://asc.fasb.org/1943274/2147477798/958-360-50-6 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (d) -SubTopic 360 -Topic 958 -Publisher FASB -URI https://asc.fasb.org/1943274/2147477798/958-360-50-1 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Name Accounting Standards Codification -Section 50 -Paragraph 7 -SubTopic 360 -Topic 958 -Publisher FASB -URI https://asc.fasb.org/1943274/2147477798/958-360-50-7 + Details
Name: | us-gaap_PropertyPlantAndEquipmentDisclosureTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration