CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $) In Thousands	6 Months Ended
Jun. 30, 2011	Jun. 30, 2010
Cash flows from operating activities:
Net cash provided by operating activities	$ 32,622	$ 30,510
Cash flows from investing activities:
Purchases of property and equipment	(25,995)	(24,521)
Proceeds from dispositions of assets	2	234
Net cash used in investing activities	(25,993)	(24,287)
Cash flows from financing activities:
Proceeds from issuance of senior secured notes, net	170,512
Proceeds from exercises of stock options	155	77
Repayments of capital lease obligations	(7,452)	(8,517)
Net cash provided by (used in) financing activities	163,215	(8,440)
Effect of exchange rate changes on cash	1,119	(1,277)
Net increase (decrease) in cash and cash equivalents	170,963	(3,494)
Cash and cash equivalents, beginning of period	56,283	55,929
Cash and cash equivalents, end of period	227,246	52,435
Supplemental disclosure of cash flow information:
Capital lease obligations incurred	$ 28,567	$ 15,113

The increase during the period in capital lease obligations due to entering into new capital leases.

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