DISCONTINUED OPERATIONS AND AFFILATIONS 2 (Details) (USD $)	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
Affiliations [Abstract]
Investments in unconsolidated affiliates	$ 14,600,000	$ 100,900,000	$ 27,700,000
Notes Receivable - affiliate	114,700,000	127,900,000
Notes receivable, secured by property, plant and equipment of affiliates	57,200,000
Repayment period, latest date	2025
Notes receivable, unsecured	57,500,000
Net asset - included in investment in affiliates and other noncurrent liabilities	29,900,000
Combined equity contributions and the notes receivable - affiliate	147,600,000
Equity Method Investment, Summarized Financial Information [Abstract]
Current assets	26,390,000	1,926,000
Noncurrent assets	625,556,000	388,780,000
Current liabilities	71,375,000	50,501,000
Noncurrent liabilities	540,166,000	352,577,000
Revenues	95,647,000	75,476,000	10,638,000
Cost of sales	64,181,000	52,187,000	0
Net Income (loss)	$ 1,522,000	$ (3,536,000)	$ 444,000
Energenic US LLC [Member]
Affiliations [Abstract]
Equity interest (in hundredths)	50.00%
Interest accrual on secured notes receivable (in hundredths)	7.50%
Potato Creek, LLC (Potato Creek) [Member]
Affiliations [Abstract]
Equity interest (in hundredths)	30.00%