Segment Information - Narrative (Details)	12 Months Ended
	Jan. 03, 2021 Segment countries customers	Dec. 29, 2019 customers countries	Dec. 30, 2018 customers countries
Segment Reporting Information [Line Items]
Number of operating segments | Segment	3
Number of reporting segments | Segment	1
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
Segment Reporting Information [Line Items]
Concentration risk, percentage of net sales	51.00%	49.00%	49.00%
Concentration risk, number of countries above threshold | countries		0	0
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 | countries	0
Customer Concentration Risk | Revenue Benchmark
Segment Reporting Information [Line Items]
Concentration risk, percentage threshold for disclosure	10.00%	10.00%	10.00%
Concentration risk, number of unaffiliated customers above threshold | customers	0	0	0