Consolidated Balance Sheets (USD $) In Thousands	Sep. 30, 2011	Dec. 31, 2010
ASSETS
Cash and cash equivalents	$ 15,621	$ 27,417
Accounts receivable, net	145,482	132,225
Materials and supplies	13,258	13,259
Prepaid expenses and other	16,382	14,529
Deferred income tax assets, net	21,333	21,518
Total current assets	212,076	208,948
PROPERTY AND EQUIPMENT, net	1,561,567	1,444,177
GOODWILL	160,545	160,629
INTANGIBLE ASSETS, net	233,045	237,355
DEFERRED INCOME TAX ASSETS, net	2,294	2,879
OTHER ASSETS, net	18,841	13,572
Total assets	2,188,368	2,067,560
LIABILITIES AND STOCKHOLDERS' EQUITY
Current portion of long-term debt	64,700	103,690
Accounts payable	139,879	124,948
Accrued expenses	53,973	76,248
Deferred income tax liabilities, net	369	0
Total current liabilities	258,921	304,886
LONG-TERM DEBT, less current portion	532,634	475,174
DEFERRED INCOME TAX LIABILITIES, net	281,064	263,361
DEFERRED ITEMS - grants from outside parties	190,626	183,356
OTHER LONG-TERM LIABILITIES	19,995	23,543
COMMITMENTS AND CONTINGENCIES	0	0
STOCKHOLDERS' EQUITY:
Additional paid-in capital	378,361	358,024
Retained earnings	708,394	622,185
Accumulated other comprehensive income	22,743	40,114
Treasury stock, at cost	(204,918)	(203,626)
Total stockholders' equity	905,128	817,240
Total liabilities and stockholders' equity	2,188,368	2,067,560
Class A
STOCKHOLDERS' EQUITY:
Common Stock	526	519
Class B
STOCKHOLDERS' EQUITY:
Common Stock	$ 22	$ 24