CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Mar. 31, 2026	Sep. 30, 2025
Current assets:
Cash and cash equivalents	$ 76,860	$ 156,062
Restricted cash	120	2,953
Contracts receivable including retainage, net	515,650	549,884
Costs and estimated earnings in excess of billings on uncompleted contracts	64,539	45,340
Inventories	176,802	155,133
Prepaid expenses and other current assets	28,424	25,459
Total current assets	862,395	934,831
Property, plant and equipment, net	1,265,112	1,153,070
Operating lease right-of-use assets	95,724	76,355
Goodwill	1,097,535	943,309
Intangible assets, net	76,391	79,230
Investment in joint venture	0	72
Restricted investments	16,150	23,176
Other assets	25,450	28,813
Total assets	3,438,757	3,238,856
Current liabilities:
Accounts payable	290,346	284,218
Billings in excess of costs and estimated earnings on uncompleted contracts	142,185	129,300
Current portion of operating lease liabilities	26,807	19,867
Current maturities of long-term debt	38,500	38,500
Accrued expenses and other current liabilities	66,472	110,163
Total current liabilities	564,310	582,048
Long-term liabilities:
Long-term debt, net of current maturities and deferred debt issuance costs	1,710,699	1,573,614
Operating lease liabilities, net of current portion	69,461	57,201
Deferred income taxes, net	83,543	80,079
Other long-term liabilities	31,359	33,951
Total long-term liabilities	1,895,062	1,744,845
Total liabilities	2,459,372	2,326,893
Stockholders’ equity:
Preferred stock, par value $0.001; 10,000,000 shares authorized and no shares issued and outstanding at March 31, 2026 and September 30, 2025	0	0
Additional paid-in capital	609,457	541,179
Accumulated other comprehensive income, net	3,095	4,369
Retained earnings	443,376	416,991
Total stockholders’ equity	979,385	911,963
Total liabilities and stockholders’ equity	3,438,757	3,238,856
Class A Common Stock
Stockholders’ equity:
Common stock	48	47
Treasury stock	(59,770)	(34,589)
Class B Common Stock
Stockholders’ equity:
Common stock	12	12
Treasury stock	$ (16,833)	$ (16,046)