Leases - Components of Lease Cost for Finance Leases and Operating Leases (Detail) $ in Thousands	12 Months Ended
	Dec. 26, 2020 USD ($)
Finance leases:
Amortization of right-of-use assets	$ 24,589
Interest on lease liability	3,155
Total finance lease cost	27,744
Operating leases:
Lease cost	3,075
Sublease income	(4,695)
Total net operating lease income	(1,620)
Total net lease cost	$ 26,124