Goodwill and Other Intangible Assets - Additional Information (Detail) - USD ($)	3 Months Ended		6 Months Ended
	Jul. 04, 2015	Jun. 28, 2014	Jul. 04, 2015	Jun. 28, 2014
Acquired Finite And Indefinite Lived Intangible Assets [Line Items]
Accumulated impairment losses	$ 0		$ 0
Weighted-average amortization period (in years)			11 years
Aggregate amortization expense	6,200,000	$ 6,100,000	$ 12,400,000	$ 12,300,000
Estimated annual amortization expense for fiscal period 2015	24,700,000		24,700,000
Estimated annual amortization expense for fiscal period 2016	20,800,000		20,800,000
Estimated annual amortization expense for fiscal period 2017	17,700,000		17,700,000
Estimated annual amortization expense for fiscal period 2018	14,800,000		14,800,000
Estimated annual amortization expense for fiscal period 2019	13,800,000		13,800,000
Estimated annual amortization expense for fiscal period 2020	$ 12,200,000		$ 12,200,000
Customer relationships [Member]
Acquired Finite And Indefinite Lived Intangible Assets [Line Items]
Weighted-average amortization period (in years)			15 years
Customer relationship contractual term, minimum (in years)			3 years
Customer relationship contractual term, maximum (in years)			5 years