Consolidated Statements of Cash Flows (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2011	Jan. 01, 2011	Jan. 02, 2010
Consolidated Statements of Cash Flows [Abstract]
Cash and Cash Equivalents at Beginning of Year	$ 557,409	$ 569,115	$ 568,255
Cash Flows from Operating Activities:
Net income (loss)	72,229	126,538	(149,871)
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Depreciation and amortization	91,648	88,335	93,139
Amortization of debt discount and fees	29,266	25,352	20,912
Loss on extinguishment of debt		5,705
Stock-based compensation	43,588	43,460	54,706
(Gain) loss on investments, net	(15,737)	(5,984)	4,396
Non-cash restructuring and other charges (credits)	240	4,086	(358)
Tax impact of convertible notes interest	8,486
Impairment of property, plant and equipment		491	6,730
Deferred income taxes	(7,811)	(64,191)	(3,438)
Proceeds from the sale of receivables, net			5,827
Provisions (recoveries) for losses (gains) on trade and installment contract receivables, net	(6,596)	(17,098)	20,947
Other non-cash items	3,196	1,039	(759)
Changes in operating assets and liabilities, net of effect of acquired businesses:
Receivables	14,388	(33,459)	61,966
Installment contract receivables	62,397	104,834	114,346
Inventories	(6,820)	(26,528)	3,896
Prepaid expenses and other	20,053	(22,392)	(1,393)
Other assets	(2,220)	8,604	12,044
Accounts payable and accrued liabilities	(46,950)	60,281	(94,851)
Deferred revenue	(13,408)	62,531	(95,135)
Other long-term liabilities	(5,607)	(162,461)	(27,467)
Net cash provided by operating activities	240,342	199,143	25,637
Cash Flows from Investing Activities:
Proceeds from the sale of available-for-sale securities	9,793		4,135
Proceeds from the sale of short-term investments		317
Proceeds from the sale of long-term investments	9,791	10,276
Proceeds from the sale of property, plant and equipment		900	3,864
Purchases of property, plant and equipment	(31,421)	(34,782)	(41,308)
Investment in venture capital partnerships and equity investments	(608)	(3,000)	(2,300)
Cash paid in business combinations and asset acquisitions, net of cash acquired, and acquisitions of intangibles	(44,052)	(258,823)	(14,900)
Net cash used for investing activities	(56,497)	(285,112)	(50,509)
Cash Flows from Financing Activities:
Principal payments on receivable sale financing	(5,842)	(3,540)	(2,467)
Proceeds from issuance of 2015 Notes		350,000
Payment of 2011 Notes and 2013 Notes	(150,000)	(192,364)
Payment of 2015 Notes issuance costs		(10,532)
Purchase of 2015 Notes Hedges		(76,635)
Proceeds from termination of 2011 and 2013 Notes Hedges		311
Proceeds from sale of 2015 Warrants		37,450
Tax effect related to employee stock transactions allocated to equity	5,549	(9,458)	1,383
Proceeds from issuance of common stock	19,714	13,643	28,010
Stock received for payment of employee taxes on vesting of restricted stock	(14,225)	(8,940)	(5,959)
Purchases of treasury stock		(39,997)
Net cash provided by (used for) financing activities	(144,804)	59,938	20,967
Effect of exchange rate changes on cash and cash equivalents	5,152	14,325	4,765
Increase (decrease) in Cash and cash equivalents	44,193	(11,706)	860
Cash and Cash Equivalents at End of Year	$ 601,602	$ 557,409	$ 569,115