CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	9 Months Ended
	Jun. 30, 2023	Jun. 30, 2022
Operating activities:
Consolidated net loss	$ (96,196)	$ (93,631)
Adjustments to reconcile net loss to net cash used in operating activities, net of acquisitions:
Depreciation and amortization	40,117	31,867
Employee stock compensation expense	5,856	22,285
Changes in deferred taxes	(27,114)	(8,385)
Provision for expected credit losses	2,175	661
Amortization of debt issuance costs and original issue discount	2,339	1,907
Non-cash interest and accretion expense	4,608	3,906
Loss on fair value remeasurement of embedded derivative	0	56,714
Other non-cash operating activities	1,034	(94)
Goodwill impairment loss	66,367	0
Loss on debt extinguishment	0	877
Non-cash amortization of inventory fair value step-up	563	10,039
Non-cash restructuring costs	889	2,990
Changes in operating assets and liabilities:
Trade receivables and contract assets	13,047	(30,565)
Inventories	16,550	(26,589)
Prepaid expenses and other current assets	6,272	(14,743)
Operating lease right-of-use assets and liabilities, net	779	447
Accounts payable	4,128	8,129
Accrued expenses and other liabilities	(11,048)	(3,327)
Fees invoiced in advance	(18,098)	32,789
Other asset and liabilities, net	(3,148)	(665)
Net cash provided by (used in) operating activities	9,120	(5,388)
Investing activities:
Capital expenditures	(21,324)	(31,275)
Proceeds from sale of equipment	268	277
Cash paid in acquisitions	0	(287,129)
Net cash used in investing activities	(21,056)	(318,127)
Financing activities:
Payments of long-term debt	0	(36,777)
Payments of debt issuance costs	(77)	(10,067)
Payments on promissory notes	(1,780)	(1,362)
Payments on revolving credit facility	(21,000)	(19,000)
Payments on senior term notes and delayed draw term loans	(2,070)	(1,200)
Borrowings on revolving loan facility	6,000	19,000
Borrowings on delayed draw term loan	35,000	35,000
Proceeds from exercise of stock options	109	102
Proceeds from issuance of senior term notes	0	205,000
Other, net	0	(1,534)
Net cash provided by financing activities	16,182	189,162
Effect of exchange rate changes on cash and cash equivalents	753	(852)
Net increase (decrease) in cash and cash equivalents	4,999	(135,205)
Less: cash, cash equivalents, and restricted cash held for sale	(1,759)	0
Cash, cash equivalents, and restricted cash at beginning of period	18,980	156,924
Cash, cash equivalents, and restricted cash at end of period, net of cash, cash equivalents and restricted cash held for sale	22,220	21,719
Non-cash financing activity:
Seller financed acquisition	0	6,288
Paid in kind debt issuance costs	1,363	0
Supplemental disclosure of cash flow information:
Cash paid for interest	26,889	11,914
Income taxes paid, net	$ 5,979	$ 666