Accrued Payroll and Employee Benefits (Detail) - USD ($) $ in Thousands	Jan. 01, 2016	Jan. 02, 2015
Employee Related Liabilities [Line Items]
Accrued bonuses payable	$ 38,042	$ 37,010
Accrued 401(k) contributions	7,323	6,887
Accrued vacation	8,836	8,277
Deferred compensation	6,418	7,648
Other accrued payroll and employee benefits	1,473	2,362
Total accrued payroll and employee benefits	$ 62,092	$ 62,184