Condensed Consolidated Statements of Cash Flows (Unaudited) (USD $) In Thousands	9 Months Ended
	Oct. 01, 2011	Oct. 02, 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	61,337	163,575
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	68,934	64,795
Amortization of debt discount and fees	22,068	18,331
Loss on extinguishment of debt		5,321
Stock-based compensation	31,589	32,817
Loss from equity method investments	104	105
Gain on investments, net	(19,324)	(5,133)
Gain on sale of property, plant and equipment		(799)
Write-down of investment securities	0	1,500
Non-cash restructuring and other charges	202	272
Impairment of property, plant and equipment		491
Deferred income taxes	(4,741)	(70,617)
Provisions (recoveries) for losses (gains) on trade and installment contract receivables	(6,596)	(13,339)
Other non-cash items	3,689	1,987
Changes in operating assets and liabilities, net of effect of acquired businesses:
Receivables	(8,906)	(44,422)
Installment contract receivables	72,635	97,818
Inventories	(9,767)	(16,005)
Prepaid expenses and other	19,718	(23,828)
Other assets	3,718	5,396
Accounts payable and accrued liabilities	(71,832)	3,308
Deferred revenue	20,245	45,229
Other long-term liabilities	(4,868)	(124,673)
Net cash provided by operating activities	178,205	142,129
Cash Flows from Investing Activities:
Proceeds from the sale of available-for-sale securities	9,588
Proceeds from the sale of long-term investments	4,824	10,276
Proceeds from the sale of property, plant and equipment		900
Purchases of property, plant and equipment	(17,703)	(28,940)
Purchases of software licenses		(2,706)
Investment in venture capital partnerships and equity investments	(608)	(3,000)
Cash paid in business combinations and asset acquisitions, net of cash acquired	(44,052)	(256,117)
Net cash used for investing activities	(47,951)	(279,587)
Cash Flows from Financing Activities:
Principal payments on receivable sale financing	(2,829)	(3,540)
Proceeds from issuance of 2015 Notes		350,000
Payment of 2011 Notes and 2013 Notes		(187,150)
Payment of 2015 Notes issuance costs		(10,419)
Purchase of 2015 Notes Hedges		(76,635)
Proceeds from termination of 2011 and 2013 Notes Hedges		280
Proceeds from sale of 2015 Warrants		37,450
Tax effect related to employee stock transactions allocated to equity	2,897	(9,624)
Proceeds from issuance of common stock	16,994	13,269
Stock received for payment of employee taxes on vesting of restricted stock	(9,926)	(5,875)
Purchases of treasury stock	0	(39,997)
Net cash provided by financing activities	7,136	67,759
Effect of exchange rate changes on cash and cash equivalents	1,302	9,619
Increase (decrease) in cash and cash equivalents	138,692	(60,080)
Cash and Cash Equivalents at End of Period	$ 696,101	$ 509,035