CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012
Cash Flows From Operating Activities:
Net loss	$ (56,214)	$ (6,014)
Adjustments to reconcile net loss to net cash provided by operating activities:
Depreciation and amortization	81,832	77,348
Amortization of debt issuance costs and discounts	7,441	10,408
Loss on sale or disposal of property and equipment	4,235	6,100
Loss on early extinguishment of debt and write-off of discounts and deferred financing costs	32,429
Deferred income tax provision	(32,460)	(4,024)
Equity-based compensation	2,222	562
Changes in assets and liabilities:
Accounts receivable	(22,011)	(14,309)
Inventories	(9,563)	(9,335)
Prepaid expenses and other current assets	(1,914)	(1,973)
Accounts payable	26,070	15,606
Accrued salaries, wages and benefits	(8,498)	(3,574)
Deferred revenue	69,855	61,161
Other accrued expenses	4,179	5,066
Other assets and liabilities	128	3,834
Net cash provided by operating activities	97,731	140,856
Cash Flows From Investing Activities:
Capital expenditures	(88,025)	(115,603)
Change in restricted cash	(232)
Net cash used in investing activities	(88,257)	(115,603)
Cash Flows From Financing Activities:
Repayment of long-term debt	(182,229)	(7,118)
Redemption premium payment	(15,400)
Proceeds from the issuance of debt	1,455	487,163
Proceeds from issuance of common stock, net of underwriter commissions	253,800
Repayment of revolving credit facility, net		(4,000)
Dividends paid to stockholders	(184)	(463,187)
Debt issuance costs	(13,961)	(7,024)
Offering costs	(4,694)
Net cash provided by financing activities	38,787	5,834
Change in Cash and Cash Equivalents	48,261	31,087
Cash and Cash Equivalents-Beginning of period	45,675	66,663
Cash and Cash Equivalents-End of period	93,936	97,750
Supplemental Disclosures of Noncash Investing and Financing Activities
Dividends declared, but unpaid	18,072	40,003
Capital expenditures in accounts payable	$ 31,414	$ 34,785