Deferred Compensation Plans - Additional Information (Detail) (USD $)	3 Months Ended
	Apr. 03, 2015	Apr. 04, 2014	Jan. 02, 2015
Deferred Compensation, Excluding Share-based Payments and Retirement Benefits
Deferred Compensation Arrangement with Individual, Excluding Share-based Payments and Postretirement Benefits [Line Items]
Trading securities	$ 43,918,000		$ 43,848,000
Deferred compensation plan vested amounts due	51,419,000		45,394,000
Change in market value of trust assets	$ 1,381,000	$ 731,000
Maximum
Deferred Compensation Arrangement with Individual, Excluding Share-based Payments and Postretirement Benefits [Line Items]
Percentage of compensation deferred	100.00%