Deferred Compensation Plan - Additional Information (Detail) (Deferred Compensation, Excluding Share-based Payments and Retirement Benefits, USD $)	3 Months Ended		9 Months Ended
	Oct. 03, 2014	Sep. 27, 2013	Oct. 03, 2014	Sep. 27, 2013	Jan. 03, 2014
Deferred Compensation Arrangement with Individual, Excluding Share-based Payments and Postretirement Benefits [Line Items]
Trading securities	$ 42,098,000		$ 42,098,000		$ 37,979,000
Deferred compensation plan vested amounts due	43,832,000		43,832,000		37,926,000
Change in market value of trust assets	$ (1,331,000)	$ 1,893,000	$ 1,351,000	$ 4,128,000
Maximum
Deferred Compensation Arrangement with Individual, Excluding Share-based Payments and Postretirement Benefits [Line Items]
Percentage of compensation deferred			100.00%