Consolidated Balance Sheets (USD $) In Thousands	Sep. 30, 2011	Dec. 31, 2010
Current assets:
Cash and cash equivalents	$ 71,612	$ 47,918
Trade accounts receivable, net of allowance of $2,009 and $3,078, respectively	240,488	150,364
Accounts receivable - related parties	57	42
Income tax receivable	305	79,480
Inventories	30,579	21,556
Prepaid expenses	7,965	5,425
Other current assets	4,008	18,193
Deferred tax assets	28,148	8,290
Total current assets	383,162	331,268
Property and equipment, net	834,185	625,702
Deferred debt costs, net of amortization	16,668	6,835
Goodwill	80,793	16,150
Other intangible assets, net of amortization	73,884	45,833
Other assets	7,709	4,025
Total assets	1,396,401	1,029,813
Current liabilities:
Accounts payable	55,378	40,477
Accrued expenses	61,134	51,237
Current portion of long-term debt	31,621	24,231
Other current liabilities	3,743	3,309
Total current liabilities	151,876	119,254
Long-term debt, net of discount or premium on notes of $1,942 and $9,425, respectively	742,054	474,628
Deferred tax liabilities	151,523	123,393
Other long-term liabilities	10,990	10,615
Commitments and contingencies
Stockholders' equity:
Preferred stock; $.01 par value; 5,000,000 shares authorized; none designated or issued at September 30, 2011 and December 31, 2010, respectively
Common stock; $.01 par value; 80,000,000 shares authorized; 42,517,309 shares issued, and 42,500,161 shares outstanding at September 30, 2011; 42,394,809 shares issued, and 41,310,447 shares outstanding at December 31, 2010.	425	424
Additional paid-in capital	348,384	335,927
Accumulated deficit	(8,851)	(27,544)
Treasury stock, at cost, 17,148 and 1,084,362 shares at September 30, 2011 and December 31, 2010, respectively	0	(6,884)
Total stockholders' equity	339,958	301,923
Total liabilities and stockholders' equity	$ 1,396,401	$ 1,029,813