Goodwill and Other Intangible Assets - Additional Information (Detail) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 25, 2017	Jun. 30, 2018	Jun. 25, 2017
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill impairment	$ 0		$ 0
Indefinite-lived intangible asset impairment	0		0
Amortization of intangible assets	6,400,000	$ 2,200,000	13,448,000	$ 2,200,000
Finite-Lived Intangible Assets, Net, Amortization Expense, Fiscal Year Maturity [Abstract]
2019	25,000,000		25,000,000
2020	25,000,000		25,000,000
2021	25,000,000		25,000,000
2022	22,200,000		22,200,000
2023	$ 20,200,000		$ 20,200,000