Segment Information - Operating Segments Depreciation, Amortization, and Assets (Details) - USD ($) $ in Thousands	3 Months Ended
Apr. 05, 2020	Mar. 31, 2019
Segment Reporting Information [Line Items]
Depreciation and amortization	$ 10,940	$ 11,344
Operating Segments
Segment Reporting Information [Line Items]
Depreciation and amortization	9,519	10,063
Corporate, Non-Segment
Segment Reporting Information [Line Items]
Depreciation and amortization	$ 1,421	$ 1,281

The aggregate expense recognized in the current period that allocates the cost of tangible assets, intangible assets, or depleting assets to periods that benefit from use of the assets.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 22
-Subparagraph (e)
-URI http://asc.fasb.org/extlink&oid=115929826&loc=d3e8736-108599

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3602-108585

Name:	us-gaap_DepreciationDepletionAndAmortization
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration