Consolidated Balance Sheets (Unaudited) (USD $) In Thousands	Jun. 30, 2011	Dec. 31, 2010
Current Assets:
Cash and Cash Equivalents	$ 117,774	$ 136,666
Restricted Cash	9,596	11,128
Accounts Receivable, Net of Allowance for Doubtful Accounts of $20,918 and $29,798 as of June 30, 2011 and December 31, 2010, Respectively	169,941	143,796
Prepaids	34,269	17,142
Current Deferred Tax Asset	8,488	8,488
Other	13,889	11,794
Total current assets	353,957	329,014
Property and Equipment, Net of Accumulated Depreciation of $569,684 and $516,565 as of June 30, 2011 and December 31, 2010, Respectively	1,680,086	1,634,542
Equity Investment	22,678	0
Other Assets, Net	34,761	31,753
Total assets	2,091,482	1,995,309
Current Liabilities:
Short-term Debt and Current Portion of Long-term Debt	4,768	4,924
Insurance Notes Payable	23,422	5,984
Accounts Payable	59,795	52,279
Accrued Liabilities	55,081	59,861
Interest Payable	16,142	6,974
Taxes Payable	7,232	0
Other Current Liabilities	18,417	16,716
Total current liabilities	184,857	146,738
Long-term Debt, Net of Current Portion	839,261	853,166
Other Liabilities	23,410	6,716
Deferred Income Taxes	99,471	135,557
Commitments and Contingencies
Stockholders' Equity:
Common Stock, $0.01 Par Value; 200,000 Shares Authorized; 139,776 and 116,336 Shares Issued, Respectively; 137,880 and 114,784 Shares Outstanding, Respectively	1,398	1,163
Capital in Excess of Par Value	2,055,265	1,924,659
Treasury Stock, at Cost, 1,896 Shares and 1,552 Shares, Respectively	(52,174)	(50,333)
Retained Deficit	(1,060,006)	(1,022,357)
Total stockholders' equity	944,483	853,132
Total liabilities and stockholders equity	$ 2,091,482	$ 1,995,309