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 loss	$ (62,248)	$ (229,921)	$ (49,482)
Adjustments to reconcile net loss to net cash provided by (used in) operating activities:
Depreciation and amortization	51,481	64,230	60,398
Asset impairments and non-cash restructuring costs	13,166	86,702	37,962
Interest expense related to amortization of debt issue costs and debt discount	14,184	20,069	16,027
Stock-based compensation	1,737	3,658	5,015
Deferred income taxes	198	(34)	(17,260)
Net loss (gain) of unconsolidated joint ventures	9,314	(3,990)	(17,523)
Net gain on disposition of property, plant and equipment	(805)	(329)	(683)
Gain on convertible debt repayments	(2,479)	0	0
Increase in trade receivables	(9,792)	(1,986)	(868)
Decrease in inventories	2,954	3,233	52
Increase in accounts payable and accrued liabilities	27,443	9,336	10,000
Other changes in operating assets and liabilities, net	3,016	(2,682)	19,112
Net cash provided by (used in) operating activities	48,169	(51,714)	62,750
Cash flows from investing activities:
Purchase of property, plant and equipment and payments for acquisitions	(27,443)	(29,847)	(26,907)
Proceeds from disposition of property, plant and equipment	1,261	556	3,802
Proceeds from sale of interests in unconsolidated joint ventures and other cash payments from unconsolidated joint venture	18,522	0	17,844
Net decrease (increase) in long-term receivables and deposits	(42)	816	(7,613)
Net change in other assets	(706)	(1,197)	(514)
Net cash used in investing activities	(8,408)	(29,672)	(13,388)
Cash flows from financing activities:
Net proceeds from issuance of long-term debt	0	392,942	316,187
Payments on long-term debt	(36,334)	(352,449)	(288,795)
Other debt issue costs	(1,090)	0	(2,456)
Employee stock purchases	635	719	752
Net cash provided by (used in) financing activities	(36,789)	41,212	25,688
Net increase (decrease) in cash and cash equivalents	2,972	(40,174)	75,050
Cash and cash equivalents, beginning of year	50,810	90,984	15,934
Cash and cash equivalents, end of year	53,782	50,810	90,984
Supplemental schedule of non-cash investing and financing activities:
Exchange of convertible senior subordinated notes	49,791	0	0
Increase in accrued liabilities for acquisition-related commitment	1,467	0	0
Supplemental disclosure of cash flow information:
Cash paid for interest	38,809	106,925	56,345
Cash paid (refunded) for income taxes	$ 1,391	$ 3,370	$ (37,058)