Business Acquisitions (Tables)

12 Months Ended

Sep. 30, 2022

Business Combinations [Abstract]

Schedule of fair values of assets acquired and liabilities assumed

The following table summarizes the consideration for the aforementioned acquisitions and the amounts of identified assets acquired and liabilities assumed as of September 30, 2022 (in thousands):

	Acquisitions - Final		North Carolina Acquisition - Provisional		South Carolina Acquisition - Provisional		Total
Cash and cash equivalents	$	1,168	$	—	$	—	$	1,168
Contracts receivable including retainage	7,162		1,854		—		9,016
Cost and estimated earnings in excess of billings on uncompleted contracts	125		—		—		125
Inventories	1,928		64		988		2,980
Prepaid expenses and other current assets	213		—		—		213
Property, plant and equipment	45,776		3,879		30,636		80,291
Deferred tax assets	2,237		234		—		2,471
Intangible assets	9,000		—		—		9,000
Total assets	67,609		6,031		31,624		105,264
Accounts payable	2,759		—		—		2,759
Billings in excess of costs and estimated earnings on uncompleted contracts	2,697		426		—		3,123
Accrued expenses and other current liabilities	2,526		594		2,980		6,100
Unfavorable contract liabilities	4,900		—		3,000		7,900
Deferred tax liabilities	—		—		282		282
Total liabilities	12,882		1,020		6,262		20,164
Goodwill	37,647		7,369		284		45,300
Total cash consideration transferred	92,374		11,716		25,646		129,736
Total consideration payable	—		664		—		664
Total purchase price	$	92,374	$	12,380	$	25,646	$	130,400

The following table summarizes the consideration for the aforementioned acquisitions and the amounts of identified assets acquired and liabilities assumed (in thousands):

	North Carolina Acquisitions		Alabama Acquisition		Total as of September 30, 2021		Finalized as of September 30, 2022
Accounts receivable	$	110	$	—	$	110	$	110
Inventories	4,819		6,480		11,299		11,209
Property, plant and equipment	70,613		35,020		105,633		105,847
Mineral reserves (included in property, plant and equipment)	18,600		38,118		56,718		56,718
Intangible assets	—		75		75		3,700
Total assets	94,142		79,693		173,835		177,584
Total liabilities	—		(718)		(718)		(3,210)
Goodwill	35,917		3,157		39,074		37,817
Total purchase price	$	130,059	$	82,132	$	212,191	$	212,191

Schedule of pro forma revenues and net income

The following presents pro forma revenues and net income as though the acquisitions had occurred on October 1, 2019 (unaudited, in thousands):

	For the Fiscal Year Ended September 30,
	2022		2021		2020
Pro forma revenues	$	1,374,936	$	1,104,850	$	979,790
Pro forma net income	$	19,137	$	18,016	$	38,136