CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	9 Months Ended
	Jun. 30, 2017	Jun. 30, 2016
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income	$ 26,862	$ 24,479
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	56,380	51,879
Stock-based compensation	7,200	8,432
Provision (recovery) for losses on accounts receivable	(111)	350
Amortization of debt discounts and issuance costs	3,774	5,271
Deferred income taxes	5,287	1,249
Gain on sale of assets and investments	0	(240)
Change in assets and liabilities, net of assets and liabilities acquired:
(Increase) decrease in accounts receivable and contract costs and recognized income not yet billed	13,617	(18,437)
(Increase) decrease in inventories	(28,958)	14,632
Decrease in prepaid and other assets	2,084	1,866
Decrease in accounts payable, accrued liabilities and income taxes payable	(23,245)	(32,827)
Other changes, net	2,595	3,093
Net cash provided by operating activities	65,485	59,747
CASH FLOWS FROM INVESTING ACTIVITIES:
Acquisition of property, plant and equipment	(59,153)	(63,247)
Acquired businesses, net of cash acquired	(6,051)	(1,744)
Acquired businesses, net of cash acquired	0	(2,726)
Proceeds from sale of assets	165	914
Investment sales	0	715
Net cash used in investing activities	(65,039)	(66,088)
CASH FLOWS FROM FINANCING ACTIVITIES:
Dividends paid	(7,766)	(6,686)
Purchase of shares for treasury	(15,796)	(50,771)
Proceeds from long-term debt	211,097	263,249
Payments of long-term debt	(152,478)	(177,973)
Change in short-term borrowings	(940)	(45)
Share premium payment on settled debt	(24,997)	0
Financing costs	(363)	(4,135)
Purchase of ESOP shares	(10,908)	0
Other, net	(112)	13
Net cash provided by (used in) financing activities	(2,263)	23,652
CASH FLOWS FROM DISCONTINUED OPERATIONS:
Net cash used in operating activities	(1,216)	(1,152)
Net cash used in discontinued operations	(1,216)	(1,152)
Effect of exchange rate changes on cash and equivalents	(72)	456
NET INCREASE (DECREASE) IN CASH AND EQUIVALENTS	(3,105)	16,615
CASH AND EQUIVALENTS AT BEGINNING OF PERIOD	72,553	52,001
CASH AND EQUIVALENTS AT END OF PERIOD	$ 69,448	$ 68,616