Segment Information - Narrative (Details) $ in Millions	12 Months Ended
Jan. 02, 2022 USD ($) customers countries	Jan. 03, 2021 USD ($) customers countries	Dec. 29, 2019 USD ($) countries customers
Segment Reporting Information [Line Items]
Number of operating segments	2
Number of reportable segments	2
Intersegment revenues \| $	$ 78.1	$ 71.5	$ 71.3
Customer Concentration Risk \| Revenue Benchmark
Segment Reporting Information [Line Items]
Concentration risk, number of unaffiliated customers above threshold \| customers	0	0	0
Concentration risk, percentage threshold for disclosure	10.00%	10.00%	10.00%
Geographic Concentration Risk \| Revenue Benchmark
Segment Reporting Information [Line Items]
Concentration risk, percentage threshold for disclosure	10.00%	10.00%	10.00%
Geographic Concentration Risk \| Revenue Benchmark \| Foreign Countries Other Than United States And Germany
Segment Reporting Information [Line Items]
Concentration risk, number of countries above threshold		0
Geographic Concentration Risk \| Revenue Benchmark \| Foreign countries
Segment Reporting Information [Line Items]
Concentration risk, percentage of net sales	50.00%	51.00%	49.00%
Concentration risk, number of countries above threshold	0		0

The number of countries exceeding the defined threshold for which disclosure is made for a concentration risk.

No definition available.

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- Definition

The number of unaffiliated customers exceeding the defined threshold for which disclosure is made for a concentration risk.

+ References

No definition available.

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- Definition

The threshold, expressed in percent of total, above which disclosure is made for a concentration risk.

+ References

No definition available.

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- Definition

Revenues between operating segments that are eliminated in consolidated net sales.

+ References

No definition available.

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- Definition

For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 42
-URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e9054-108599

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 275
-SubTopic 10
-Section 50
-Paragraph 18
-URI http://asc.fasb.org/extlink&oid=99393423&loc=d3e6351-108592

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
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-URI http://asc.fasb.org/extlink&oid=123594938&loc=d3e13531-108611

Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef
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-Name Accounting Standards Codification
-Topic 825
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-Topic 275
-SubTopic 10
-Section 50
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- Definition

Number of operating segments. An operating segment is a component of an enterprise: (a) that engages in business activities from which it may earn revenues and incur expenses (including revenues and expenses relating to transactions with other components of the same enterprise), (b) whose operating results are regularly reviewed by the enterprise's chief operating decision maker to make decisions about resources to be allocated to the segment and assess its performance, and (c) for which discrete financial information is available. An operating segment may engage in business activities for which it has yet to earn revenues, for example, start-up operations may be operating segments before earning revenues.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 18
-URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e8672-108599

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Number of segments reported by the entity. A reportable segment is a component of an entity for which there is an accounting requirement to report separate financial information on that component in the entity's financial statements.

+ References

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- Definition

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.

+ References

No definition available.

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