CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Jun. 30, 2013	Jul. 01, 2012
Operating activities:
Net income	$ 43,052	$ 133,910
Adjustments:
Depreciation and amortization	89,832	90,647
Stock-based compensation expense	47,411	56,152
Non-cash restructuring of operations and other items, net	6,330	5,041
Gain on re-measurement of a pre-acquisition equity interest to fair value		(5,765)
Gain on sale of property and equipment	(4)	(70)
Unrealized foreign exchange gain	(2,254)	(2,735)
Deferred taxes	(51)	(43,174)
Changes in assets and liabilities, net of assets acquired and liabilities assumed in business combination:
Accounts receivable, net	21,690	(39,417)
Inventories	32,570	227
Prepaid expenses and other assets	(9,117)	(1,830)
Accounts payable	(10,601)	29,521
Accrued and other liabilities	(78,208)	(55,010)
Net cash provided by operating activities	140,650	167,497
Investing activities:
Purchases of debt securities available-for-sale	(117,178)	(72,369)
Proceeds from maturities and sales of debt securities available-for-sale	51,017	17,756
Purchases of other investments	(750)
Purchases of property and equipment	(43,357)	(77,618)
Proceeds from sale of property and equipment	82	252
Acquisition of business, net of cash acquired		(319,231)
Net cash used in investing activities	(110,186)	(451,210)
Financing activities:
Issuances of common stock	31,889	82,128
Purchases of common stock under repurchase programs	(122,280)	(176,185)
Net cash used in financing activities	(90,391)	(94,057)
Effect of exchange rate changes on cash and cash equivalents	(2,030)	103
Net change in cash and cash equivalents	(61,957)	(377,667)
Cash and cash equivalents at beginning of period	471,528	779,811
Cash and cash equivalents at end of period	$ 409,571	$ 402,144