Goodwill and Other Intangible Assets - Narrative (Details)	12 Months Ended
Dec. 28, 2019 USD ($) reporting_unit	Dec. 28, 2019 USD ($) segment	Dec. 28, 2019 USD ($)	Dec. 29, 2018 USD ($)	Dec. 30, 2017 USD ($)
Goodwill and Intangible Assets Disclosure [Abstract]
Number of reporting units	2	2
Goodwill [Line Items]
Goodwill	$ 32,997,000	$ 32,997,000	$ 32,997,000	$ 34,123,000	$ 31,580,000
Amortization expense			3,600,000	3,100,000	3,300,000
Impairment of intangibles			0	0	0
Oil Business
Goodwill [Line Items]
Goodwill	$ 0	$ 0	$ 0	$ 0	$ 0

The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method.

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (b)
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-Publisher FASB
-Name Accounting Standards Codification
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Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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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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The amount of impairment loss recognized in the period resulting from the write-down of the carrying amount of an intangible asset (excluding goodwill) to fair value.

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Number of reporting units tested for impairment of goodwill. A reporting unit is an operating segment or one level below an operating segment.

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