Stock-Based Compensation Expense - Additional Information (Detail) (USD $) Share data in Millions, unless otherwise specified	3 Months Ended				9 Months Ended				9 Months Ended
	Sep. 30, 2012	Jul. 01, 2012	Oct. 02, 2011	Jul. 03, 2011	Sep. 30, 2012	Oct. 02, 2011	May 09, 2012 2003 Equity incentive plan amendment.	May 09, 2012 Restricted stock and/or restricted stock units [Member] 2003 Equity incentive plan amendment.	Sep. 30, 2012 Stock options [Member]	Sep. 30, 2012 Service-based Restricted Stock Units [Member]	Sep. 30, 2012 Performance-based Restricted Stock Units [Member]	Sep. 30, 2012 Stock options and RSU's assumed from acquisition [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares available for issuance of new awards							25	15
Maximum shares issued upon exercise of incentive stock options							25
Description of share based payment award					In May 2012, the Company's 2003 Equity Incentive Plan was amended to increase the number of shares available for new awards to a total of 25 million, of which 15 million shares were available for restricted stock and/or restricted stock units ("RSUs"). In addition, the period during which incentive stock options can be granted was extended to February 9, 2022, and the maximum number of shares that may be issued upon exercise of incentive stock options was set at 25 million.
Expenses related to stock options and RSUs assumed	$ 3,100,000				$ 8,800,000
Stock-based compensation expense	27,386,000		11,753,000		83,538,000	39,072,000						4,500,000
Total unrecognized compensation expense related to unvested stock options, net of estimated forfeitures	40,900,000				40,900,000
Period of total unrecognized compensation expense related to stock awards, net of estimated forfeitures									2 years 2 months 12 days	2 years 9 months 18 days
Total unrecognized compensation expense related to service-based awards, net of estimated forfeitures	94,600,000				94,600,000
Total unrecognized compensation expense related to performance based awards, net of estimated forfeitures											$ 19,800,000
Recognition period for unrecognized compensation expense related to performance-based restricted stock units net of estimated forfeitures											3 years
Shares issued under ESPP		2.8		2.9