Leases - Additional Information (Detail) - USD ($) $ in Millions	3 Months Ended	6 Months Ended
Jun. 14, 2020	Jun. 16, 2019	Jun. 14, 2020	Jun. 16, 2019
Rent Expenses	$ 16.2	$ 15.9	$ 32.6	$ 32.3
Potential future payments	14.9		14.9
Operating Lease [Member]
Lessee, operating lease, lease not yet commenced, future minimum rental commitments	$ 30.4		$ 30.4
Lease Term	15 years		15 years

Maximum potential amount of future payments (undiscounted) the guarantor could be required to make under the guarantee or each group of similar guarantees before reduction for potential recoveries under recourse or collateralization provisions.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 460
-SubTopic 10
-Section 50
-Paragraph 4
-Subparagraph (b)(1)
-URI http://asc.fasb.org/extlink&oid=121555522&loc=d3e12069-110248

Name:	us-gaap_GuaranteeObligationsMaximumExposure
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant