Business Acquisitions (Tables)

9 Months Ended

Jun. 30, 2025

Business Combination, Asset Acquisition, Transaction between Entities under Common Control, and Joint Venture Formation [Abstract]

Schedule of Business Combination, Recognized Asset Acquired and Liability Assumed

The following table summarizes the consideration for the acquisitions and the provisional amounts of identified assets acquired and liabilities assumed as of June 30, 2025 (unaudited, in thousands):

	Lone Star Paving		Overland		Mobile Asphalt Company, LLC		PRI		Total
Cash and cash equivalents	$	15,168	$	2,426	$	—	$	1,634	$	19,228
Contracts receivable including retainage	96,740		5,658		6,071		12,244		120,713
Cost and estimated earnings in excess of billings on uncompleted contracts	3,972		501		74		1,473		6,020
Inventories	26,604		6,414		2,975		964		36,957
Prepaid expenses and other current assets	493		1,757		538		250		3,038
Property, plant and equipment	408,190		34,791		29,219		49,921		522,121
Operating lease right-of-use assets	2,006		33		2,924		176		5,139
Intangible assets	53,800		7,900		—		3,200		64,900
Total assets	606,973		59,480		41,801		69,862		778,116
Accounts payable	36,810		5,287		2,586		2,427		47,110
Billings in excess of costs and estimated earnings on uncompleted contracts	10,293		2,089		168		1,018		13,568
Accrued expenses and other current liabilities	4,573		1,597		—		1,566		7,736
Operating lease liabilities	1,949		33		2,924		—		4,906
Total liabilities	53,625		9,006		5,678		5,011		73,320
Goodwill	423,859		68,422		18,535		31,549		542,365
Total cash consideration transferred	674,201		121,057		54,658		96,057		945,973
Fair value of Class A common stock transferred	236,250		—		—		—		236,250
Total consideration payable (receivable)	66,756		(2,161)		—		343		64,938
Total purchase price	$	977,207	$	118,896	$	54,658	$	96,400	$	1,247,161

Schedule of Pro Forma Revenues and Net Income

The following tables present pro forma revenues and net income as though the acquisitions had occurred on October 1, 2023 (unaudited, in thousands):

	For the Three Months Ended June 30,
	2025		2024
Pro forma revenues	$	785,665	$	764,679
Pro forma net income	$	45,101	$	48,745

	For the Nine Months Ended June 30,
	2025		2024
Pro forma revenues	$	2,061,082	$	1,942,147
Pro forma net income	$	70,196	$	59,291