Consolidated Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Statement of Cash Flows [Abstract]
Net income (loss)	$ 43,588	$ 28,754
Bad debt expense	150	63
Deferred financing cost amortization	70	65
Depreciation and amortization	7,617	6,388
Gain (Loss) on Disposition of Property Plant Equipment	(71)	(13,060)
Non-cash compensation expense	1,413	905
Deferred income taxes	1,004	533
Unrealized Gain (Loss) on Investments	(119)	0
Accounts receivable	(24,869)	18,142
Inventories	(18,121)	(5,113)
Costs and estimated earnings in excess of billings	7,974	7,562
Prepaid expenses and other current assets	(9,761)	(11,766)
Other non-current assets	(4,443)	103
Accounts payable and accrued expenses	(2,616)	(29,780)
Billings in excess of costs and estimated earnings	23,191	10,722
Other non-current liabilities	(54)	826
Net cash provided by operating activities	24,953	14,344
Capital expenditures	(6,515)	(2,712)
Proceeds from sale of assets	656	19,205
Cash paid in conjunction with business combinations	(130)	(165)
Net cash used in investing activities	(5,989)	16,328
Borrowings of debt	654,039	607,974
Repayments of debt	(654,039)	(647,639)
Cash paid for finance leases	(978)	(773)
Payment for Contingent Consideration Liability, Financing Activities	4,074	0
Distribution to noncontrolling interest	(1,297)	(2,348)
Purchase of treasury stock	(929)	(7,489)
Net cash used in financing activities	(7,278)	(50,275)
NET INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS	11,686	(19,603)
CASH, CASH EQUIVALENTS, beginning of period	75,770	24,848
CASH, CASH EQUIVALENTS, end of period	87,456	5,245
Cash paid for interest	135	1,001
Cash paid for income taxes (net)	$ 117	$ 63