Summary of Information About Options Outstanding and Exercisable (Detail) (USD $)	12 Months Ended
	Dec. 28, 2013
$0.83 - $5.12
Schedule Of Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding By Exercise Price [Line Items]
Range of Exercise Prices, Minimum	$ 0.83
Range of Exercise Prices, Maximum	$ 5.12
Options Outstanding	11,957,410
Options Outstanding, Weighted Average Remaining Contractual Life (in years)	2 years 10 months 6 days
Options Outstanding, Weighted Average Exercise Price	$ 2.41
Options Exercisable	8,627,640
Options Exercisable, Weighted Average Remaining Contractual Life (in years)	2 years 5 months 23 days
Options Exercisable, Weighted Average Exercise Price	$ 2.45
$5.13 (option exchange)
Schedule Of Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding By Exercise Price [Line Items]
Range of Exercise Prices, Minimum	$ 5.13
Options Outstanding	460,016
Options Outstanding, Weighted Average Remaining Contractual Life (in years)	2 years 10 months 28 days
Options Outstanding, Weighted Average Exercise Price	$ 5.13
Options Exercisable	458,240
Options Exercisable, Weighted Average Remaining Contractual Life (in years)	2 years 10 months 28 days
Options Exercisable, Weighted Average Exercise Price	$ 5.13
$5.14 - $10.00
Schedule Of Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding By Exercise Price [Line Items]
Range of Exercise Prices, Minimum	$ 5.14
Range of Exercise Prices, Maximum	$ 10.00
Options Outstanding	9,736,550
Options Outstanding, Weighted Average Remaining Contractual Life (in years)	3 years 5 months 12 days
Options Outstanding, Weighted Average Exercise Price	$ 6.25
Options Exercisable	7,292,093
Options Exercisable, Weighted Average Remaining Contractual Life (in years)	1 year 7 months 21 days
Options Exercisable, Weighted Average Exercise Price	$ 6.57
$10.01 - $15.00
Schedule Of Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding By Exercise Price [Line Items]
Range of Exercise Prices, Minimum	$ 10.01
Range of Exercise Prices, Maximum	$ 15.00
Options Outstanding	350,065
Options Outstanding, Weighted Average Remaining Contractual Life (in years)	1 year 1 month 24 days
Options Outstanding, Weighted Average Exercise Price	$ 11.30
Options Exercisable	350,065
Options Exercisable, Weighted Average Remaining Contractual Life (in years)	1 year 1 month 24 days
Options Exercisable, Weighted Average Exercise Price	$ 11.30
$15.01 - $25.00
Schedule Of Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding By Exercise Price [Line Items]
Range of Exercise Prices, Minimum	$ 15.01
Range of Exercise Prices, Maximum	$ 25.00
Options Outstanding	25,834
Options Outstanding, Weighted Average Remaining Contractual Life (in years)	1 month 21 days
Options Outstanding, Weighted Average Exercise Price	$ 17.55
Options Exercisable	25,834
Options Exercisable, Weighted Average Remaining Contractual Life (in years)	1 month 21 days
Options Exercisable, Weighted Average Exercise Price	$ 17.55
$25.01 - 33.61
Schedule Of Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding By Exercise Price [Line Items]
Range of Exercise Prices, Minimum	$ 25.01
Range of Exercise Prices, Maximum	$ 33.61
Options Outstanding	172,659
Options Outstanding, Weighted Average Remaining Contractual Life (in years)	5 months 5 days
Options Outstanding, Weighted Average Exercise Price	$ 30.44
Options Exercisable	172,659
Options Exercisable, Weighted Average Remaining Contractual Life (in years)	5 months 5 days
Options Exercisable, Weighted Average Exercise Price	$ 30.44
$0.83 - $33.61
Schedule Of Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding By Exercise Price [Line Items]
Range of Exercise Prices, Minimum	$ 0.83
Range of Exercise Prices, Maximum	$ 33.61
Options Outstanding	22,702,534
Options Outstanding, Weighted Average Remaining Contractual Life (in years)	3 years 22 days
Options Outstanding, Weighted Average Exercise Price	$ 4.48
Options Exercisable	16,926,531
Options Exercisable, Weighted Average Remaining Contractual Life (in years)	2 years 29 days
Options Exercisable, Weighted Average Exercise Price	$ 4.79