Fair Value Measurements Non-Recurring Fair Value Measurements (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 29, 2019	Dec. 30, 2018	Dec. 31, 2017
Fair Value, Assets and Liabilities Measured on Nonrecurring Basis
Held and used, Total losses	$ 5,602	$ 4,343
Held for sale, Total losses	1,397	354
Impairment of long-lived assets	6,999	4,697	$ 4,097
Fair Value, Measurements, Nonrecurring
Fair Value, Assets and Liabilities Measured on Nonrecurring Basis
Assets Held and used, Long Lived, Fair Value Disclosure	3,582	462
Assets Held for sale, Long Lived, Fair Value Disclosure	988	1,031
Total	4,570	1,493
Fair Value, Measurements, Nonrecurring \| Fair Value, Inputs, Level 1
Fair Value, Assets and Liabilities Measured on Nonrecurring Basis
Assets Held and used, Long Lived, Fair Value Disclosure	0	0
Assets Held for sale, Long Lived, Fair Value Disclosure	0	0
Total	0	0
Fair Value, Measurements, Nonrecurring \| Fair Value, Inputs, Level 2
Fair Value, Assets and Liabilities Measured on Nonrecurring Basis
Assets Held and used, Long Lived, Fair Value Disclosure	0	0
Assets Held for sale, Long Lived, Fair Value Disclosure	0	0
Total	0	0
Fair Value, Measurements, Nonrecurring \| Fair Value, Inputs, Level 3
Fair Value, Assets and Liabilities Measured on Nonrecurring Basis
Assets Held and used, Long Lived, Fair Value Disclosure	3,582	462
Assets Held for sale, Long Lived, Fair Value Disclosure	988	1,031
Total	$ 4,570	$ 1,493

Amount of write-down of assets recognized in the income statement. Includes, but is not limited to, losses from tangible assets, intangible assets and goodwill.

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Fair value portion of probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.

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Fair value portion of assets classified as held for sale.

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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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No definition available.

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The aggregate amount of write-downs for impairments recognized during the period for long lived assets held for use (including those held for disposal by means other than sale).

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The aggregate amount of write-downs for impairments recognized during the period for long-lived assets held for abandonment, exchange or sale.

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Fair value portion of physical assets used in the normal conduct of business to produce goods and services and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.

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