Condensed Consolidated Statements Of Cash Flows (Unaudited) (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011
Cash Flows from Operating Activities
Net income (loss)	$ 1,444	$ (15,066)
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Depreciation and amortization	8,680	7,147
Gain on sale of joint venture interest	(4,055)
Gain on sale of assets, net	(841)
Share based compensation	628	785
Equity in (earnings) loss of joint ventures	(164)	5,002
Changes in operating assets and liabilities:
Restricted cash	7,476	(7,678)
Receivables, net	(2,490)	(9,398)
Inventory	(3,423)	1,977
Prepaid expenses	(621)	5
Refundable income taxes	152	(41)
Accounts payable	(8,031)	3,463
Accounts payable to affiliate, net	(3,595)	858
Accrued expenses	1,311	(106)
Change in derivatives	(2,492)	2,562
Deferred credit	(448)	(749)
Accrued retirement health and life insurance benefits and other noncurrent liabilities	(826)	(698)
Other	(158)	2,112
Net cash used in operating activities	(7,453)	(9,825)
Cash Flows from Investing Activities
Proceeds from sale of joint venture interest	9,103
Additions to property and equipment	(7,712)	(9,495)
Proceeds from the disposition of property and equipment	3,215	61
Investment in and advances to unconsolidated subsidiaries	(500)
Net cash provided by (used in) investing activities	4,106	(9,434)
Cash Flows from Financing Activities
Payment of dividends	(914)
Purchase of treasury stock		(117)
Proceeds from stock plans		48
Exercise of stock options		548
Loan fees incurred with borrowings	(100)
Proceeds from issuance of long-term debt		7,335
Principal payments on long-term debt	(1,248)	(825)
Proceeds from revolving credit facility	99,239	280,272
Principal payments on revolving credit facility	(94,013)	(267,488)
Net cash provided by financing activities	2,964	19,773
Increase (decrease) in cash and cash equivalents	(383)	514
Cash and cash equivalents, beginning of period	383	472
Cash and cash equivalents, end of period		$ 986