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For a classified balance sheet, the cumulative difference as of the balance sheet date between the payments required by a lease agreement and the rental income or expense recognized on a straight-line basis, or other systematic and rational basis more representative of the time pattern in which use or benefit is granted or derived from the leased property, expected to be recognized in income or expense, by the lessor or lessee, respectively, within one year of the balance sheet date.

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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.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Amount of gain (loss) on sale and leaseback transaction from transfer of asset accounted for as sale.

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Leases - Additional Information (Details) $ in Millions	6 Months Ended
Leases - Additional Information (Details) $ in Millions	Jun. 16, 2020 USD ($) leaseback_arrangement	Jun. 18, 2019 USD ($) leaseback_arrangement	May 10, 2019 leaseback_arrangement	Mar. 26, 2019 leaseback_arrangement
Lessee, Lease, Description [Line Items]
Lease renewal period	5 years
Number of sale leaseback transaction arrangements \| leaseback_arrangement	1	3	1	2
Net proceeds from sale leaseback transaction	$ 1.4	$ 12.7
Gain (loss) on sale leaseback transaction	0.6	$ (0.2)
Guarantor Obligations, Maximum Exposure, Undiscounted	$ 1.6
Guarantor Obligation Lease Term	19 years
Deferred Rent Credit, Current	$ 1.3
Minimum
Lessee, Lease, Description [Line Items]
Remaining lease term	1 year
Maximum
Lessee, Lease, Description [Line Items]
Remaining lease term	20 years
Land and Building
Lessee, Lease, Description [Line Items]
Term of sale leaseback contract	20 years	20 years