CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	3 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income	$ 8,596	$ 7,471
Adjustments to reconcile net income to net cash used in operating activities:
Depreciation and amortization	17,084	17,260
Stock-based compensation	3,066	2,577
Provision for losses on accounts receivable	(24)	156
Amortization of debt discounts and issuance costs	1,671	1,634
Deferred income taxes	2,763	1,501
(Gain) loss on sale/disposal of assets and investments	(77)	171
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	(6,106)	24,824
Increase in inventories	(9,080)	(32,658)
(Increase) decrease in prepaid and other assets	316	(2,177)
Decrease in accounts payable, accrued liabilities and income taxes payable	(38,324)	(30,051)
Other changes, net	519	1,242
Net cash used in operating activities	(19,596)	(8,050)
CASH FLOWS FROM INVESTING ACTIVITIES:
Acquisition of property, plant and equipment	(25,018)	(18,921)
Investment in unconsolidated joint venture	(2,726)	0
Proceeds from sale of assets	484	107
Investment sales	715	0
Net cash used in investing activities	(26,545)	(18,814)
CASH FLOWS FROM FINANCING ACTIVITIES:
Dividends paid	(2,281)	(1,910)
Purchase of shares for treasury	(10,910)	(13,170)
Proceeds from long-term debt	79,874	10,279
Payments of long-term debt	(24,126)	(11,295)
Change in short-term borrowings	(147)	(1,201)
Financing costs	0	(29)
Tax benefit from exercise/vesting of equity awards, net	2,291	342
Other, net	104	102
Net cash provided by (used in) financing activities	44,805	(16,882)
CASH FLOWS FROM DISCONTINUED OPERATIONS:
Net cash used in operating activities	(387)	(380)
Net cash used in discontinued operations	(387)	(380)
Effect of exchange rate changes on cash and equivalents	(310)	(1,713)
NET DECREASE IN CASH AND EQUIVALENTS	(2,033)	(45,839)
CASH AND EQUIVALENTS AT BEGINNING OF PERIOD	52,001	92,405
CASH AND EQUIVALENTS AT END OF PERIOD	$ 49,968	$ 46,566