Debt Obligations (Tables)

12 Months Ended

Dec. 31, 2012

Debt Disclosure [Abstract]

Schedule of Debt [Table Text Block]

		2012		2011
Senior notes, 12% fixed rate, due 2018	$	554,000	$	-
Convertible senior notes, 5.5% fixed rate, due 2016		135,000		135,000
Revolving credit facility, 13% fixed rate, due 2013		115,163		-
Convertible bonds, 11.5% until March 31, 2014 and 7.5% thereafter, due 2016		70,029		62,523
Senior term loan, 15% fixed rate, due 2013		-		240,349
Subordinated notes, 12% fixed rate, due 2014		-		32,012
		874,192		469,884
Less: debt discount, net of premium		(14,686)		(2,506)
Less: current maturities		(15,713)		(12,350)
Long-term debt	$	843,793	$	455,028
Standby letters of credit outstanding for abandonment liabilities	$	-	$	31,724

Schedule of Maturities of Long-term Debt [Table Text Block]

2013	$	15,713
2014		99,450
2015		-
2016		205,029
2017		-
Thereafter		554,000