Unaudited Consolidated Statements of Changes in Cash Flows - USD ($) $ in Thousands	6 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Operating activities
Net income	$ 19,900	$ 13,462
Reconciliation of net income to cash flows (used in) provided by operating activities:
Depreciation and amortization	66,647	61,156
Amortization of deferred financing fees	943	926
Deferred income taxes	3,195	592
Share-based compensation	12,200	10,589
Gain on sale of property, plant, and equipment	(1,403)	(61)
Loss (gain) on sale of business	2,857	(193)
Impairment of long-lived assets	1,703	0
Foreign currency exchange (gains) losses on intercompany loans and other non-cash items	(9,805)	3,728
Changes in assets and liabilities
Accounts receivable	4,954	16,554
Inventories	(19,561)	(26,754)
Contract assets	(12,560)	(26,910)
Prepaids and other current assets	(4,294)	(14,049)
Accounts payable	1,929	19,589
Accrued expenses and other liabilities	(45,947)	(13,648)
Contract liabilities	12,590	(382)
Income taxes	(3,494)	135
Other non‑current assets and liabilities	4,333	(15,586)
Net cash provided by operating activities	34,187	29,148
Investing activities
Purchase of property, plant, and equipment	(53,211)	(36,320)
Purchase of intangibles	(2,479)	(1,582)
Proceeds from sale of property, plant, and equipment	3,621	1,940
Proceeds from sale of business, net of cash of $0 and $0	67	356
Acquisitions	816	194,976
Net cash used in investing activities	(51,186)	(230,582)
Financing activities
Borrowing of debt	157,774	223,793
Repayment of debt	(166,542)	(33,362)
Repayment of finance lease obligation	(7,156)	(6,571)
Proceeds from contingent consideration asset	7,824	0
Proceeds from issuance of common stock	4,700	5,274
Taxes paid related to net share settlements of share-based compensation awards	(4,734)	(5,144)
Distribution to non‑controlling interest	0	(100)
Net cash (used in) provided by financing activities	(8,134)	183,890
Effect of exchange rate changes on cash	4,371	800
Change in cash and cash equivalents	(20,762)	(16,744)
Beginning of period	134,005	146,244
End of period	113,243	129,500
Supplemental disclosure of cash flow information
Cash paid for taxes	7,039	2,889
Cash paid for interest	18,241	12,537
Non‑cash investing and financing activities
Finance lease transactions	8,770	6,199
Operating lease transactions	12,102	11,385
Cloud computing related intangible transaction	$ 15,877	$ 0