Condensed Consolidated Statements of Cash Flows (Unaudited) (USD $) In Thousands	6 Months Ended
	Jul. 02, 2011	Jul. 03, 2010
Condensed Consolidated Statements of Cash Flows [Abstract]
Cash and Cash Equivalents at Beginning of Period	$ 557,409	$ 569,115
Cash Flows from Operating Activities:
Net income	33,231	36,822
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	46,283	41,333
Amortization of debt discount and fees	14,587	11,301
Loss on extinguishment of debt		5,321
Stock-based compensation	19,698	20,807
Loss from equity method investments	65	73
Gain on investments, net	(13,741)	(6,935)
Non-cash restructuring and other charges	136	216
Write-down of investment securities		1,500
Impairment of property, plant and equipment		427
Deferred income taxes	(4,811)	(69,266)
Provisions (recoveries) for losses (gains) on trade and installment contract receivables	(5,885)	(12,978)
Other non-cash items	2,518	3,124
Changes in operating assets and liabilities, net of effect of acquired businesses:
Receivables	2,455	(25,384)
Installment contract receivables	62,080	70,479
Inventories	(6,987)	(10,923)
Prepaid expenses and other	1,969	(13,778)
Other assets	1,479	1,397
Accounts payable and accrued liabilities	(48,650)	6,026
Deferred revenue	25,979	31,882
Other long-term liabilities	(4,628)	4,257
Net cash provided by operating activities	125,778	95,701
Cash Flows from Investing Activities:
Proceeds from the sale of available-for-sale securities	9,588
Proceeds from the sale of long-term investments	2,785	10,133
Purchases of property, plant and equipment	(11,312)	(18,765)
Purchases of software licenses		(2,517)
Investment in venture capital partnerships and equity investments	(608)	(500)
Cash paid in business combinations and asset acquisitions, net of cash acquired	(22,865)	(253,951)
Net cash used for investing activities	(22,412)	(265,600)
Cash Flows from Financing Activities:
Principal payments on receivable sale financing	(2,829)	(1,719)
Proceeds from issuance of 2015 Notes		350,000
Payment of Convertible Senior Notes		(187,150)
Payment of 2015 Notes issuance costs		(9,800)
Purchase of 2015 Notes Hedges		(76,635)
Proceeds from termination of Convertible Senior Notes Hedges		280
Proceeds from sale of 2015 Warrants		37,450
Tax effect related to employee stock transactions allocated to equity	967	59
Proceeds from issuance of common stock	10,302	8,119
Stock received for payment of employee taxes on vesting of restricted stock	(7,389)	(4,114)
Purchases of treasury stock		(39,997)
Net cash provided by financing activities	1,051	76,493
Effect of exchange rate changes on cash and cash equivalents	3,491	(106)
Increase (decrease) in cash and cash equivalents	107,908	(93,512)
Cash and Cash Equivalents at End of Period	$ 665,317	$ 475,603