Commitments and Contingencies - Additional Information (Detail) $ in Millions	12 Months Ended
	Jan. 02, 2016 USD ($) Employees	Jan. 03, 2015 USD ($)	Dec. 28, 2013 USD ($)
Commitments And Contingencies [Line Items]
Rent expense, net of sub-lease rental income | $	$ 29.4	$ 30.6	$ 31.2
Collective bargaining agreements expiration	5 years
Workforce Subject to Collective Bargaining Arrangements [Member]
Commitments And Contingencies [Line Items]
Number of employees covered under collective bargaining agreements	2,600
Percentage of employees covered under collective bargaining agreements	23.00%
Workforce Subject to Collective Bargaining Agreements Expiring in 2015 [Member]
Commitments And Contingencies [Line Items]
Number of employees covered under collective bargaining agreements	1,400
Collective bargaining agreements year of expiration	2016
Workforce Subject to Collective Bargaining Arrangements Expiring in 2016 [Member]
Commitments And Contingencies [Line Items]
Number of employees covered under collective bargaining agreements	700
Collective bargaining agreements year of expiration	2017
Workforce Subject to Collective Bargaining Arrangements Expiring in 2017 [Member]
Commitments And Contingencies [Line Items]
Number of employees covered under collective bargaining agreements	500
Collective bargaining agreements year of expiration	2018
Workforce Subject to Collective Bargaining Arrangements Expiring in 2018 [Member]
Commitments And Contingencies [Line Items]
Number of employees covered under collective bargaining agreements	0
Collective bargaining agreements year of expiration	2019
Workforce Subject to Collective Bargaining Arrangements Expiring in 2019 [Member]
Commitments And Contingencies [Line Items]
Number of employees covered under collective bargaining agreements	0
Collective bargaining agreements year of expiration	2020