Property, Plant and Equipment (Tables)

3 Months Ended

Dec. 31, 2024

Property, Plant and Equipment [Abstract]

Schedule of Property, Plant and Equipment

Property, plant and equipment at December 31, 2024 and September 30, 2024 consisted of the following (in thousands):

	December 31, 2024		September 30, 2024
	(unaudited)
Construction equipment	$	660,113	$	570,044
Plants	338,228		255,214
Land and improvements	175,427		94,182
Mineral reserves	220,915		69,334
Buildings	42,233		39,838
Furniture and fixtures	8,686		8,616
Leasehold improvements	1,307		1,268
Total property, plant and equipment, gross	1,446,909		1,038,496
Accumulated depreciation, depletion, and amortization	(453,718)		(426,842)
Construction in progress	37,701		18,270
Total property, plant and equipment, net	$	1,030,892	$	629,924