CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011
Cash flows provided by operating activities:
Net (loss) income	$ (185,695)	$ 42,891
Adjustments to reconcile net (loss) income to net cash provided by operating activities:
Depreciation and amortization	52,741	56,298
Provision for doubtful accounts	2,064	2,452
Non-cash compensation	21,582	34,431
Deferred income taxes	(294)	(6,562)
Non cash restructuring write-offs	6,417
Loss in equity interests, net	726	996
Gains on auction rate securities		(1,732)
Tax benefit from change in uncertain tax positions	(43,193)
Impairment of goodwill	216,221
Changes in assets and liabilities, net of acquisitions:
Accounts receivable	13,341	47,696
Prepaid and other	11,109	(2,361)
Deferred revenue	(28,277)	(24,931)
Accounts payable, accrued liabilities and other	(30,904)	(24,163)
Total adjustments	221,533	82,124
Net cash provided by operating activities	35,838	125,015
Cash flows used for investing activities:
Capital expenditures	(46,902)	(45,433)
Cash funded to equity investee	(2,077)	(2,559)
Sales and maturities of marketable securities		1,732
Dividends received from unconsolidated investee	728	443
Net cash used for investing activities	(48,251)	(45,817)
Cash flows (used for) provided by financing activities:
Proceeds from borrowings on credit facilities	221,355	107,725
Payments on borrowings on credit facilities	(271,802)	(9,500)
Proceeds from borrowings on term note	100,000
Payments on borrowings on term note	(42,500)
Repurchase of common stock	(65,611)
Tax withholdings related to net share settlements of restricted stock awards and units	(8,030)	(16,876)
Proceeds from the exercise of employee stock options	23	23
Net cash (used for) provided by financing activities	(66,565)	81,372
Effects of exchange rates on cash	3,764	(1,938)
Net (decrease) increase in cash and cash equivalents	(75,214)	158,632
Cash and cash equivalents, beginning of period	250,317	163,169
Cash and cash equivalents, end of period	175,103	321,801
Supplemental disclosures of cash flow information:
Cash paid for income taxes	11,732	17,682
Cash paid for interest	$ 9,191	$ 6,342