Commitments and Contingencies - Additional Information (Detail) - USD ($) $ in Thousands	12 Months Ended
	Jan. 03, 2017	Dec. 29, 2015	Dec. 30, 2014
Operating Leased Assets [Line Items]
Rent expenses	$ 42,800	$ 39,400	$ 35,900
Deferred rent	30,424	27,627
Total contingent rentals	3,800	$ 3,600	$ 3,500
Aggregate future commitment relating to lease agreements	586,422
Letters of credit outstanding amount	$ 14,500
Letters of credit renewal period, years	1 year
Potential aggregate payments for terminated employees	$ 2,000
Future estimated cash payments under existing contractual purchase obligations	28,700
Property Subject to Operating Lease
Operating Leased Assets [Line Items]
Aggregate future commitment relating to lease agreements	$ 3,500
Minimum
Operating Leased Assets [Line Items]
Operating lease, remaining term (in years)	10 years
Operating lease, renewal option (in years)	5 years
Maximum
Operating Leased Assets [Line Items]
Operating lease, remaining term (in years)	20 years
Operating lease, renewal option (in years)	20 years