CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2010
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income (loss)	$ 17,011	$ (7,431)	$ 9,592
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Income from discontinued operations	0	0	(88)
Depreciation and amortization	66,264	60,712	40,442
Fair value write-up of acquired inventory sold	0	15,152	0
Stock-based compensation	10,439	8,956	5,778
Provision for losses on accounts receivable	1,212	1,225	2,431
Amortization/write-off of deferred financing costs and debt discounts	6,023	6,733	5,059
Loss from debt extinguishment, net	0	26,164	1,117
Deferred income taxes	(2,627)	(2,749)	(3,666)
(Gain) loss on sale/disposal of assets	56	(251)	74
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	27,269	(30,593)	(25,481)
(Increase) decrease in inventories	9,011	(12,803)	(10,611)
(Increase) decrease in prepaid and other assets	(3,281)	9,065	(14,342)
Increase (decrease) in accounts payable, accrued liabilities and income taxes payable	(46,368)	(42,604)	72,144
Other changes, net	5,121	3,809	676
Net cash provided by operating activities	90,130	35,385	83,125
CASH FLOWS FROM INVESTING ACTIVITIES:
Acquisition of property, plant and equipment	(68,851)	(87,617)	(40,477)
Acquired business, net of cash acquired	(22,432)	(855)	(542,000)
Change in funds restricted for capital projects	0	4,629	0
Proceeds from sale of assets	309	1,510	0
Net cash used in investing activities	(90,974)	(82,333)	(584,143)
CASH FLOWS FROM FINANCING ACTIVITIES:
Proceeds from issuance of common stock	0	0	2,823
Dividends paid	(4,743)	0	0
Purchase of shares for treasury	(10,382)	(18,139)	0
Proceeds from issuance of long-term debt	4,000	674,251	543,875
Payments of long-term debt	(18,546)	(498,572)	(176,802)
Change in short-term borrowings	(1,859)	3,538	0
Financing costs	(97)	(21,653)	(17,455)
Purchase of ESOP shares	0	(19,973)	0
Exercise of stock options	0	2,306	343
Tax effect from exercise/vesting of equity awards, net	834	7	325
Other, net	100	345	184
Net cash provided by (used in) financing activities	(30,693)	122,110	353,293
CASH FLOWS FROM DISCONTINUED OPERATIONS:
Net cash used in operating activities	(2,801)	(962)	(638)
Net cash used in discontinued operations	(2,801)	(962)	(638)
Effect of exchange rate changes on cash and equivalents	963	(973)	(2,668)
NET INCREASE (DECREASE) IN CASH AND EQUIVALENTS	(33,375)	73,227	(151,031)
CASH AND EQUIVALENTS AT BEGINNING OF PERIOD	243,029	169,802	320,833
CASH AND EQUIVALENTS AT END OF PERIOD	209,654	243,029	169,802
Supplemental Disclosure of Cash Flow Information:
Cash paid for interest	49,533	21,396	6,489
Cash paid for taxes	$ 8,713	$ 10,219	$ 4,643