CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) (USD $) In Thousands	9 Months Ended
	Sep. 30, 2011	Sep. 30, 2010
Cash flows from operating activities:
Net income	$ 6,738	$ 11,187
Adjustments to reconcile net income to net cash provided by operating activities
Depreciation and amortization expense	93,054	92,234
Loss on extinguishment of debt	9,111	0
Deferred income tax expense (benefit)	7,403	10,260
Share-based compensation expense	3,224	4,696
Other noncash income and expense items	7,195	5,712
Change in operating assets and liabilities	(30,199)	(11,933)
Net cash provided by operating activities	96,526	112,156
Cash flows from investing activities:
Purchases of property and equipment	(126,900)	(68,813)
Restricted cash	16,546	0
Grant proceeds	15,314	0
Purchases of other assets and intangible assets	(4,635)	(3,002)
Purchase of businesses, net of cash received	0	(5,545)
Purchase of marketable securities	0	(202)
Proceeds from sale of marketable securities	0	178
Other	(233)	0
Net cash used in investing activities	(99,442)	(77,384)
Cash flows from financing activities:
Repayment of debt and capital lease obligations	(414,733)	(7,315)
Issuance of 2021 Notes	325,000	0
Borrowing on Senior Credit Facility	142,000	0
Purchase of treasury stock to be retired	(39,291)	(1,306)
Issuance of other long-term debt	15,375	6,206
Payment of Senior Notes call premiums	(4,728)	0
Payment of debt issuance costs	(3,512)	(2,300)
Other	915	167
Investment by noncontrolling interest	(16,546)	0
Net cash provided by (used in) financing activities	4,480	(4,548)
Net increase (decrease) in cash and cash equivalents	1,564	30,224
Cash and cash equivalents at beginning of period	33,070	48,776
Cash and cash equivalents at end of period	$ 34,634	$ 79,000