Unaudited Consolidated Statements of Changes in Cash Flows - USD ($) $ in Thousands	3 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Operating activities
Net income	$ 9,268	$ 6,088
Reconciliation of net income to cash flows (used in) provided by operating activities:
Depreciation and amortization	33,248	28,640
Amortization of deferred financing fees	476	467
Deferred income taxes	1,852	251
Share-based compensation	6,196	5,203
Gain on sale of property, plant, and equipment	(836)	(4)
Foreign currency exchange (gains) losses on intercompany loans and other non-cash items	(8,184)	1,502
Changes in assets and liabilities
Accounts receivable	6,839	41,309
Inventories	(26,082)	(16,021)
Contract assets	(15,790)	(12,189)
Prepaids and other current assets	(2,326)	(3,797)
Accounts payable	5,290	11,241
Accrued expenses and other liabilities	(24,916)	(16,953)
Contract liabilities	14,711	(2,887)
Income taxes	416	(338)
Other non‑current assets and liabilities	(1,435)	(6,132)
Net cash (used in) provided by operating activities	(1,273)	36,380
Investing activities
Purchase of property, plant, and equipment	(22,742)	(15,540)
Purchase of intangibles	(1,120)	(664)
Proceeds from sale of property, plant, and equipment	1,674	1,370
Acquisitions	1,716	0
Net cash used in investing activities	(20,472)	(14,834)
Financing activities
Borrowing of debt	23,700	5,949
Repayment of debt	(33,185)	(19,378)
Repayment of finance lease obligation	(3,905)	(3,174)
Proceeds from issuance of common stock	2,868	2,085
Taxes paid related to net share settlements of share-based compensation awards	(390)	(1,261)
Distribution to non‑controlling interest	0	(100)
Net cash used in financing activities	(10,912)	(15,879)
Effect of exchange rate changes on cash	3,355	614
Change in cash and cash equivalents	(29,302)	6,281
Beginning of period	134,005	146,244
End of period	104,703	152,525
Supplemental disclosure of cash flow information
Cash paid for taxes	1,989	1,654
Cash paid for interest	8,990	5,706
Non‑cash investing and financing activities
Finance lease transactions	3,311	2,700
Operating lease transactions	$ 6,863	$ 1,152