CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	12 Months Ended
	Sep. 30, 2023	Sep. 30, 2022
Operating activities:
Consolidated net loss	$ (104,902)	$ (337,262)
Adjustments to reconcile net loss to net cash provided by (used in) operating activities, net of acquisitions:
Depreciation and amortization	54,717	49,324
Employee stock compensation expense	7,844	24,202
Changes in deferred taxes	(25,810)	(17,835)
Provision for expected credit losses	1,273	1,306
Amortization of debt issuance costs and original issue discount	3,182	2,257
Noncash interest and accretion expense	6,284	5,316
Loss on fair value remeasurement of embedded derivative	0	56,714
Other non-cash operating activities	(200)	1,658
Goodwill impairment loss	66,367	236,005
Non-cash amortization of inventory fair value step-up	679	10,246
Non-cash restructuring costs	1,493	3,129
Changes in operating assets and liabilities:
Trade receivables and contract assets	9,550	(23,838)
Inventories	14,011	(35,198)
Prepaid expenses and other current assets	11,249	(20,054)
Operating lease right-of-use assets and liabilities, net	884	824
Accounts payable	5,963	(8,042)
Accrued expenses and other liabilities	(8,339)	14,662
Fees invoiced in advance	(12,907)	25,962
Other asset and liabilities, net	(3,455)	5,407
Net cash provided by (used in) operating activities	27,883	(5,217)
Investing activities:
Capital expenditures	(27,503)	(36,300)
Proceeds from sale of equipment	1,115	290
Cash paid for other investing activities	(2,367)	0
Cash paid for acquisitions	0	(297,712)
Net cash used in investing activities	(28,755)	(333,722)
Financing activities:
Payments of long-term debt	0	(36,777)
Payments of debt issuance costs	(77)	(10,067)
Payments on promissory notes	(2,091)	(2,166)
Payments on revolving credit facility	(21,000)	(19,000)
Payments on senior term notes and delayed draw term loans	(2,070)	(1,800)
Borrowings on revolving loan facility	6,000	34,000
Borrowings on senior term notes and delayed draw term loans	35,000	240,000
Proceeds from exercise of stock options	110	118
Other, net	0	(1,157)
Net cash provided by financing activities	15,872	203,151
Effect of exchange rate changes on cash and cash equivalents	1,512	(2,156)
Net increase (decrease) in cash and cash equivalents	16,512	(137,944)
Cash, cash equivalents, and restricted cash at beginning of period	18,980	156,924
Cash, cash equivalents, and restricted cash at end of period	35,492	18,980
Noncash financing activity:
Paid in kind debt issuance costs	1,363	0
Seller financed acquisition	0	6,888
Supplemental disclosure of cash flow information:
Cash paid for interest	35,459	17,063
Income taxes paid, net	$ 7,146	$ 479