Consolidated Statements of Cash Flows (Unaudited) (USD $) In Thousands	6 Months Ended
	Jun. 30, 2011	Jun. 30, 2010
Operating activities:
Net loss	$ (3,832)	$ (5,647)
Adjustments to reconcile net loss to net cash provided by operating activities:
Depreciation and amortization	37,423	43,097
Unrealized (gain) loss on derivative instruments	(1,511)	1,469
Loss on early retirement of debt	158	760
Share-based compensation and restricted stock	869	960
Other, net	262	153
Change in operating assets and liabilities:
Accounts receivable, net	2,166	(1,091)
Other current assets	632	26
Accounts payable	(4,126)	15,715
Accrued expenses and deferred revenue	(4,953)	445
Other	526	(773)
Net cash provided by operating activities	27,614	55,114
Investing activities:
Property and equipment additions	(10,595)	(8,954)
Net cash used for investing activities	(10,595)	(8,954)
Financing activities:
Repayment of long-term debt	(5,525)	(68,636)
Payment of capital lease obligations	(407)	(559)
Borrowings on revolving credit facility	45,000	8,000
Repayments of revolving credit facility	(45,000)	(8,000)
Debt issuance costs	(2,444)
Proceeds from investment in long-term debt	323	4,007
Proceeds from issuance of common stock, net of offering costs		13,658
Payment of dividends to preferred shareholders	(2,875)	(2,875)
Exercise of stock options	7	41
Net cash used for financing activities	(10,921)	(54,364)
Effect of exchange rates on cash		(40)
Increase (decrease) in cash	6,098	(8,244)
Cash at beginning of period	8,381	17,011
Cash at end of period	$ 14,479	$ 8,767