Significant Accounting Policies - Property, Plant and Equipment (Details)	9 Months Ended
Oct. 07, 2018
Buildings and improvements \| Minimum
Property, Plant, and Equipment
Useful lives (in years)	20 years
Buildings and improvements \| Maximum
Property, Plant, and Equipment
Useful lives (in years)	25 years
Fixtures and equipment \| Minimum
Property, Plant, and Equipment
Useful lives (in years)	3 years
Fixtures and equipment \| Maximum
Property, Plant, and Equipment
Useful lives (in years)	10 years

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.

No definition available.

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration