Leases - Components of Lease Cost for Finance Leases and Operating Leases (Detail) $ in Thousands	6 Months Ended
	Jun. 26, 2021 USD ($)
Finance leases:
Amortization of right-of-use assets	$ 10,714
Interest on lease liability	1,379
Total finance lease cost	12,093
Operating leases:
Lease cost	1,740
Sublease income	(2,476)
Total net operating lease income	(736)
Total net lease cost	$ 11,357