Condensed Consolidated Statements of Cash Flows (Unaudited) (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Sep. 29, 2013	Sep. 30, 2012
Cash flows from operating activities:
Net income	$ 44,647	$ 79,351
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation expense	37,081	35,564
Amortization of intangible assets	33,677	11,136
Share-based compensation expense	76,080	70,148
Accretion of debt discount	27,095	26,100
Contingent compensation expense	4,109	4,049
Incremental tax benefit related to share-based compensation	(27,225)	(12,463)
Deferred income taxes	(58,643)	(36,439)
Change in fair value of contingent consideration	11,031	(1,713)
Impairments	25,214	21,438
Change in facility exit obligation	(232)	19,484
Cost-method investment related gain	(6,113)
Other	2,531	2,882
Changes in operating assets and liabilities:
Accounts receivable	(12,504)	(37,045)
Inventory	(398)	(13,460)
Prepaid expenses and other current assets	(1,390)	(1,402)
Other assets	(3,427)	(2,717)
Accounts payable	(10,876)	18,434
Accrued liabilities	11,932	27,331
Accrued legal contingencies	127,012
Other long-term liabilities	2,043	(1,107)
Net cash provided by operating activities	259,582	212,997
Cash flows from investing activities:
Purchases of available-for-sale securities	(178,512)	(802,353)
Sales of available-for-sale securities	622,699	666,579
Maturities of available-for-sale securities	123,231	128,346
Net cash paid for acquisitions	(437,478)	(83,156)
Purchases of strategic investments	(4,030)	(15,030)
Proceeds from sale of strategic investment	10,001
Purchases of property and equipment	(51,905)	(51,680)
Cash paid for intangible assets	(2,845)	(11,329)
Net cash provided by (used in) investing activities	81,161	(168,623)
Cash flows from financing activities:
Payments on long-term financing obligations	(10,721)
Payments on acquisition related contingent consideration liability	(3,985)	(3,374)
Incremental tax benefit related to share-based compensation	27,225	12,463
Common stock repurchases	(50,020)	(52,509)
Payments on retirement of warrants	(125,000)
Proceeds from issuance of common stock	80,226	38,707
Net cash used in financing activities	(82,275)	(4,713)
Effect of exchange rate changes on cash and cash equivalents	(613)	450
Net increase in cash and cash equivalents	257,855	40,111
Cash and cash equivalents at beginning of period	433,981	302,978
Cash and cash equivalents at end of period	$ 691,836	$ 343,089