Goodwill and Other Intangible Assets - Schedule of Goodwill and Intangible Assets Net (Detail) - USD ($) $ in Thousands	3 Months Ended
	Apr. 04, 2020	Dec. 28, 2019
Indefinite-lived Intangible Assets [Line Items]
Less: Accumulated amortization	$ (103,526)	$ (98,784)
Subtotal	131,049	107,121
Other intangible assets, net	279,890	255,962
Goodwill at December 28, 2019	277,600
Goodwill at April 4, 2020	323,800
NewSouth [Member]
Indefinite-lived Intangible Assets [Line Items]
Increase related to the acquisition of NewSouth	46,200
Trade Name [Member]
Indefinite-lived Intangible Assets [Line Items]
Intangible assets	148,841	148,841
Customer Relationships and Customer-related Assets [Member]
Indefinite-lived Intangible Assets [Line Items]
Intangible assets	$ 201,547	200,647
Customer Relationships and Customer-related Assets [Member] | Minimum [Member]
Indefinite-lived Intangible Assets [Line Items]
Initial Useful Life (in years)	1 year
Customer Relationships and Customer-related Assets [Member] | Maximum [Member]
Indefinite-lived Intangible Assets [Line Items]
Initial Useful Life (in years)	10 years
Trade Name [Member]
Indefinite-lived Intangible Assets [Line Items]
Intangible assets	$ 23,500
Initial Useful Life (in years)	15 years
Developed Technology [Member]
Indefinite-lived Intangible Assets [Line Items]
Intangible assets	$ 5,600	3,000
Developed Technology [Member] | Minimum [Member]
Indefinite-lived Intangible Assets [Line Items]
Initial Useful Life (in years)	6 years
Developed Technology [Member] | Maximum [Member]
Indefinite-lived Intangible Assets [Line Items]
Initial Useful Life (in years)	10 years
Noncompete Agreements [Member]
Indefinite-lived Intangible Assets [Line Items]
Intangible assets	$ 3,338	1,668
Noncompete Agreements [Member] | Minimum [Member]
Indefinite-lived Intangible Assets [Line Items]
Initial Useful Life (in years)	2 years
Noncompete Agreements [Member] | Maximum [Member]
Indefinite-lived Intangible Assets [Line Items]
Initial Useful Life (in years)	5 years
Software License [Member]
Indefinite-lived Intangible Assets [Line Items]
Intangible assets	$ 590	$ 590
Initial Useful Life (in years)	2 years