Annual report pursuant to Section 13 and 15(d)

Business Acquisitions - Assets Acquired and Liabilities Assumed (Details)

v3.24.3
Business Acquisitions - Assets Acquired and Liabilities Assumed (Details) - USD ($)
$ in Thousands
 12 Months Ended
Sep. 30, 2024
Sep. 30, 2023
Sep. 30, 2022
Business Acquisition [Line Items]      
Goodwill $ 231,656 $ 159,270 $ 129,465
2024 Acquisition      
Business Acquisition [Line Items]      
Contracts receivable including retainage 41,038    
Cost and estimated earnings in excess of billings on uncompleted contracts 4,202    
Inventories 7,186    
Prepaid expenses and other current assets 2,571    
Property, plant and equipment 134,318    
Operating lease right-of-use assets 1,181    
Deferred tax assets 1,856    
Intangible assets 3,178    
Total assets 195,530    
Accounts payable (12,965)    
Billings in excess of costs and estimated earnings on uncompleted contracts (15,267)    
Accrued expenses and other current liabilities (4,962)    
Operating lease liabilities (1,181)    
Other long-term liabilities (418)    
Total liabilities (34,793)    
Goodwill 70,954    
Total cash consideration transferred 231,844    
Total consideration (receivable) payable (153)    
Total purchase price 231,691    
Acquisitions (Final)      
Business Acquisition [Line Items]      
Contracts receivable including retainage 0    
Cost and estimated earnings in excess of billings on uncompleted contracts 0    
Inventories 2,530    
Prepaid expenses and other current assets 943    
Property, plant and equipment 15,877    
Operating lease right-of-use assets 548    
Deferred tax assets 36    
Intangible assets 258    
Total assets 20,192    
Accounts payable 0    
Billings in excess of costs and estimated earnings on uncompleted contracts 0    
Accrued expenses and other current liabilities (681)    
Operating lease liabilities (548)    
Other long-term liabilities (418)    
Total liabilities (1,647)    
Goodwill 9,304    
Total cash consideration transferred 27,849    
Total consideration (receivable) payable 0    
Total purchase price 27,849    
SJ&L General Contractor, LLC Acquisition (Provisional)      
Business Acquisition [Line Items]      
Contracts receivable including retainage 16,006    
Cost and estimated earnings in excess of billings on uncompleted contracts 309    
Inventories 214    
Prepaid expenses and other current assets 644    
Property, plant and equipment 35,361    
Operating lease right-of-use assets 157    
Deferred tax assets 1,820    
Intangible assets 220    
Total assets 54,731    
Accounts payable (3,166)    
Billings in excess of costs and estimated earnings on uncompleted contracts (6,380)    
Accrued expenses and other current liabilities (3,816)    
Operating lease liabilities (157)    
Other long-term liabilities 0    
Total liabilities (13,519)    
Goodwill 15,857    
Total cash consideration transferred 57,069    
Total consideration (receivable) payable 0    
Total purchase price 57,069    
Sunbelt Asphalt Surfaces, Inc. Acquisition (Provisional)      
Business Acquisition [Line Items]      
Contracts receivable including retainage 6,645    
Cost and estimated earnings in excess of billings on uncompleted contracts 365    
Inventories 354    
Prepaid expenses and other current assets 30    
Property, plant and equipment 13,245    
Operating lease right-of-use assets 438    
Deferred tax assets 0    
Intangible assets 1,400    
Total assets 22,477    
Accounts payable (1,443)    
Billings in excess of costs and estimated earnings on uncompleted contracts (650)    
Accrued expenses and other current liabilities (43)    
Operating lease liabilities (438)    
Other long-term liabilities 0    
Total liabilities (2,574)    
Goodwill 9,268    
Total cash consideration transferred 28,655    
Total consideration (receivable) payable 516    
Total purchase price 29,171    
Hudson Paving, Inc. Acquisition (Provisional)      
Business Acquisition [Line Items]      
Contracts receivable including retainage 6,222    
Cost and estimated earnings in excess of billings on uncompleted contracts 506    
Inventories 459    
Prepaid expenses and other current assets 100    
Property, plant and equipment 11,604    
Operating lease right-of-use assets 0    
Deferred tax assets 0    
Intangible assets 0    
Total assets 18,891    
Accounts payable (3,057)    
Billings in excess of costs and estimated earnings on uncompleted contracts (1,957)    
Accrued expenses and other current liabilities (125)    
Operating lease liabilities 0    
Other long-term liabilities 0    
Total liabilities (5,139)    
Goodwill 5,396    
Total cash consideration transferred 18,714    
Total consideration (receivable) payable 434    
Total purchase price 19,148    
Robinson Paving Company Acquisition (Provisional)      
Business Acquisition [Line Items]      
Contracts receivable including retainage 7,600    
Cost and estimated earnings in excess of billings on uncompleted contracts 2,738    
Inventories 1,887    
Prepaid expenses and other current assets 0    
Property, plant and equipment 33,237    
Operating lease right-of-use assets 38    
Deferred tax assets 0    
Intangible assets 1,300    
Total assets 46,800    
Accounts payable (2,854)    
Billings in excess of costs and estimated earnings on uncompleted contracts (2,672)    
Accrued expenses and other current liabilities (297)    
Operating lease liabilities (38)    
Other long-term liabilities 0    
Total liabilities (5,861)    
Goodwill 18,600    
Total cash consideration transferred 60,301    
Total consideration (receivable) payable (762)    
Total purchase price 59,539    
John G. Walton Construction Company, Inc. Acquisition (Provisional)      
Business Acquisition [Line Items]      
Contracts receivable including retainage 4,565    
Cost and estimated earnings in excess of billings on uncompleted contracts 284    
Inventories 1,742    
Prepaid expenses and other current assets 854    
Property, plant and equipment 24,994    
Operating lease right-of-use assets 0    
Deferred tax assets 0    
Intangible assets 0    
Total assets 32,439    
Accounts payable (2,445)    
Billings in excess of costs and estimated earnings on uncompleted contracts (3,608)    
Accrued expenses and other current liabilities 0    
Operating lease liabilities 0    
Other long-term liabilities 0    
Total liabilities (6,053)    
Goodwill 12,529    
Total cash consideration transferred 39,256    
Total consideration (receivable) payable (341)    
Total purchase price 38,915    
2023 Acquisitions      
Business Acquisition [Line Items]      
Cash and cash equivalents 33 33  
Contracts receivable including retainage 12,924 12,991  
Cost and estimated earnings in excess of billings on uncompleted contracts 598 598  
Inventories 3,088 3,088  
Prepaid expenses and other current assets 799 799  
Property, plant and equipment 45,937 45,937  
Operating lease right-of-use assets 433 433  
Deferred tax assets 488 0  
Intangible assets 5,900 5,900  
Total assets 70,200 69,779  
Accounts payable (3,718) (3,718)  
Billings in excess of costs and estimated earnings on uncompleted contracts (3,354) (2,329)  
Accrued expenses and other current liabilities (1,790) (895)  
Operating lease liabilities (433) (433)  
Total liabilities (9,295) (7,375)  
Goodwill 31,021 29,589  
Total purchase price $ 91,926 $ 91,993