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Stock Plans - Additional Information (Detail) - USD ($) $ / shares in Units, $ in Thousands				3 Months Ended
	Jun. 22, 2015	May. 22, 2015	May. 07, 2015	Jan. 02, 2016
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options outstanding				0
Stock option expense				$ 12,759
Options To Purchase Common Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options outstanding	734,000	1,700,000
Percentage of options eligible for exchange		99.60%
weighted-average exercise price	$ 5.25	$ 24.68
Vesting period	3 years
Stock option expense	$ 1,599
Options To Purchase Common Stock \| Vesting on the first anniversary
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting percentage	25.00%
Options To Purchase Common Stock \| Vesting on the second anniversary
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting percentage	25.00%
Options To Purchase Common Stock \| Vesting on the third anniversary
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting percentage	50.00%
Employees \| Stock Incentive Plan 2014
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock conversion ratio			200.00%
Chief Executive Officer \| Stock Incentive Plan 2014
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock conversion ratio			350.00%