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Description of Business and Summary of Significant Accounting Policies (Details 3) - USD ($) $ in Millions	12 Months Ended
	Dec. 30, 2018	Dec. 31, 2017	Dec. 25, 2016
Property and equipment
Capitalized interest	$ 0.2	$ 0.3	$ 0.2
Buildings | Minimum
Property and equipment
Estimated useful lives	5 years
Buildings | Maximum
Property and equipment
Estimated useful lives	20 years
Leasehold improvements | Maximum
Property and equipment
Estimated useful lives	20 years
Furniture, fixtures and equipment | Minimum
Property and equipment
Estimated useful lives	5 years
Furniture, fixtures and equipment | Maximum
Property and equipment
Estimated useful lives	20 years
Computer equipment | Minimum
Property and equipment
Estimated useful lives	2 years
Computer equipment | Maximum
Property and equipment
Estimated useful lives	5 years

X

- Definition

Amount of interest capitalized during the period.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=6450988&loc=d3e26243-108391

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- Definition

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+ References

No definition available.

+ Details

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- Definition

Useful life of long lived, physical assets used in the normal conduct of business and not intended for resale, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Examples include, but not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment.

+ References

No definition available.

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