Condensed Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Sep. 30, 2013	Dec. 31, 2012
Current Assets:
Cash and cash equivalents	$ 60,357	$ 59,185
Accounts receivable	24,496	46,181
Prepaid expenses and other current assets	48,696	20,995
Total Current Assets	133,549	126,361
Property and Equipment, Net ($388,617 and $349,433 not subject to amortization at September 30, 2013 and December 31, 2012, respectively)	1,078,906	1,003,441
Goodwill	259,238	262,764
Other Assets	36,396	49,906
Total Assets	1,508,089	1,442,472
Current Liabilities:
Accounts payable	44,802	60,153
Current maturities of debt	115,163	15,713
Deferred revenue	40,691
Monetary production payment, current portion	19,167
Accrued expenses and other	54,422	90,100
Total Current Liabilities	274,245	165,966
Long-Term Debt	752,769	843,793
Deferred Taxes	127,658	141,887
Monetary production payment, long-term portion	126,667
Other Liabilities	136,798	147,692
Total Liabilities	1,418,137	1,299,338
Commitments and Contingencies
Series C Convertible Preferred Stock:
Series C preferred stock - Liquidation preference: $37,000 and $37,000 at September 30, 2013 and December 31, 2012, respectively	43,703	43,703
Stockholders Equity:
Common stock; shares issued and outstanding - 47,119 and 46,691 shares at September 30, 2013 and December 31, 2012, respectively	47	47
Additional paid-in capital	509,806	493,804
Treasury stock, at cost - 72 and 72 shares at September 30, 2013 and December 31, 2012, respectively	(587)	(587)
Accumulated deficit	(463,017)	(393,833)
Total Stockholders' Equity	46,249	99,431
Total Liabilities and Stockholders Equity	1,508,089	1,442,472
Series C Preferred Stock [Member]
Series C Convertible Preferred Stock:
Series C preferred stock - Liquidation preference: $37,000 and $37,000 at September 30, 2013 and December 31, 2012, respectively	43,703	43,703
Series B Preferred Stock [Member]
Stockholders Equity:
Series B preferred stock - Liquidation preference: $3,706 and $3,588 at September 30, 2013 and December 31, 2012, respectively