Unaudited Consolidated Statements of Changes in Cash Flows - USD ($) $ in Thousands	9 Months Ended
	Jun. 30, 2020	Jun. 30, 2019
Operating activities
Net income (loss)	$ 83,257	$ (10,425)
Reconciliation of net income (loss) to cash flows provided by operating activities:
Depreciation and amortization	80,056	71,397
Amortization of debt related costs (includes $1,795 and $0 write off of deferred financing fees)	3,504	1,916
Deferred income taxes	(1,422)	(4,115)
Share-based compensation	8,504	14,248
Loss (gain) on sale of property, plant and equipment	767	(588)
Gain on sale of business	(68,051)	0
Foreign currency exchange losses on intercompany loans and other non-cash items	(2,438)	4,002
Changes in assets and liabilities
Accounts receivable	8,685	7,495
Inventories	(25,523)	(17,664)
Contract assets	(1,486)	(6,912)
Prepaids and other current assets	1,359	7,260
Accounts payable	8,938	(2,819)
Accrued expenses and other liabilities	(19,919)	(19,578)
Contract liabilities	(7,893)	13,051
Income taxes	1,620	(6,786)
Other non‑current assets and liabilities	12,528	3,875
Net cash provided by operating activities	82,486	54,357
Investing activities
Purchase of property, plant and equipment	(65,924)	(63,948)
Purchase of intangibles	(708)	(4,775)
Proceeds from sale of property, plant and equipment	379	2,860
Proceeds from sale of business, net of cash of $12,117	118,894	0
Acquisitions, net of cash received of $0 and $2,073	(10,884)	(2,811)
Net cash provided by (used in) investing activities	41,757	(68,674)
Financing activities
Issuance of debt, net of deferred issuance costs	12,859	15,965
Borrowings under credit facility	2,597	230,000
Repayment of debt	(113,572)	(238,908)
Repayment of finance lease obligation	(9,988)	(9,273)
Payment of earn-out related to previous acquisitions	(175)	(461)
Proceeds from issuance of common stock	17,949	341
Taxes paid related to net share settlements of share-based compensation awards	0	(1,248)
Cash paid for interest rate cap	0	(2,235)
Distribution to non‑controlling interest	(1,850)	(750)
Net cash used in financing activities	(92,180)	(6,569)
Effect of exchange rate changes on cash	793	(357)
Change in cash and cash equivalents	32,856	(21,243)
Cash and cash equivalents
Beginning of period	109,881	82,365
End of period	142,737	61,122
Supplemental disclosure of cash flow information
Cash paid for taxes	3,865	8,731
Cash paid for interest	31,200	39,409
Non‑cash investing and financing activities
Finance lease transactions	8,401	11,788
Operating lease transactions	12,085	0
Option and Purchase Right	$ 7,167	$ 0