Condensed Consolidated Statements of Cash Flows (Unaudited) (USD $) In Thousands	6 Months Ended
	Jun. 30, 2011		Jun. 30, 2010
Cash flows from operating activities:
Cash provided by operating activities	$ 11,556		$ 12,826
Cash flows from investing activities:
Acquisition of property and equipment	(2,522)		(2,146)
Proceeds from license downgrade			3,561
Purchases of short-term investments			(2,005)
Other investing activities	(104)		(7)
Net cash used in investing activities	(2,626)		(597)
Cash flows from financing activities:
Payments on long-term debt	(99,100)		(7,500)
Proceeds from long-term debt	92,100
Payments for debt issuance costs	(1,147)		(1,503)
Purchase of shares held in treasury	(117)		(78)
Net cash used in financing activities	(8,264)		(9,081)
Net increase in cash and cash equivalents	666		3,148
Cash and cash equivalents, beginning of period	12,197	[1]	12,899
Cash and cash equivalents, end of period	$ 12,863		$ 16,047

[1] The balance sheet at December 31, 2010 has been derived from the audited financial statements at that date but does not include all of the information and footnotes required by accounting principles generally accepted in the United States for complete financial statements.