CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Mar. 31, 2012	Mar. 31, 2011
Cash flows from operating activities:
Net loss	$ (17,195)	$ (31,981)
Adjustments to reconcile net loss to net cash provided by operating activities:
Depreciation and amortization	23,831	23,627
Provision for doubtful accounts	880	1,306
Deferred income taxes	0	(1,772)
(Gain) loss on sales of assets	(1,161)	72
ESOP and share-based compensation expense	2,519	3,245
Net loss (gain) on derivatives and investments	5,131	(3,034)
Change in operating assets and liabilities:
Short-term investments	1,027	27,078
Accounts and notes receivable	936	(2,613)
Inventories	3,533	(4,289)
Income tax receivable	(377)	5,781
Prepaid expenses and other assets	81	(1,546)
Accounts payable	(9,342)	3,613
Accrued payroll expenses and other liabilities	1,102	1,274
Accrued postretirement benefits	1,130	1,097
Other long-term liabilities	(1,083)	5,988
Net cash provided by operating activities	11,012	27,846
Cash flows from investing activities:
Purchases of property, plant and equipment	(10,533)	(15,435)
Proceeds from sales of property, plant and equipment	2,112	1,315
Net cash used in investing activities	(8,421)	(14,120)
Cash flows from financing activities:
Proceeds from revolving line of credit	13,700	27,850
Repayments on revolving line of credit	(17,700)	(36,470)
Payments on capital lease obligations	(1,209)	(913)
Dividends paid	0	(4,657)
Net cash used in financing activities	(5,209)	(14,190)
Net decrease in cash and cash equivalents	(2,618)	(464)
Cash and cash equivalents at beginning of period	6,081	4,149
Cash and cash equivalents at end of period	3,463	3,685
Non-cash investing activities:
Additions to capital leases	$ 5,203	$ 5,546