Revenue - Summary of Disaggregated Revenue (Details) - USD ($) $ in Thousands	3 Months Ended
	Apr. 03, 2022	Apr. 04, 2021
Disaggregation of Revenue [Line Items]
Lease Revenue	$ 1,167	$ 1,167
Total Revenue	48,121	48,101
Point-in-Time
Disaggregation of Revenue [Line Items]
Topic 606 Revenue	13,205	10,019
Over Time
Disaggregation of Revenue [Line Items]
Topic 606 Revenue	33,749	36,915
Wafer Services
Disaggregation of Revenue [Line Items]
Lease Revenue	0	0
Total Revenue	21,546	10,019
Wafer Services | Point-in-Time
Disaggregation of Revenue [Line Items]
Topic 606 Revenue	13,205	10,019
Wafer Services | Over Time
Disaggregation of Revenue [Line Items]
Topic 606 Revenue	8,341	0
Total Advanced Technology Services
Disaggregation of Revenue [Line Items]
Lease Revenue	1,167	1,167
Total Revenue	26,575	38,082
Total Advanced Technology Services | Point-in-Time
Disaggregation of Revenue [Line Items]
Topic 606 Revenue	0	0
Total Advanced Technology Services | Over Time
Disaggregation of Revenue [Line Items]
Topic 606 Revenue	25,408	36,915
T&M
Disaggregation of Revenue [Line Items]
Lease Revenue	0	0
Total Revenue	18,908	10,792
T&M | Point-in-Time
Disaggregation of Revenue [Line Items]
Topic 606 Revenue	0	0
T&M | Over Time
Disaggregation of Revenue [Line Items]
Topic 606 Revenue	18,908	10,792
Fixed Price
Disaggregation of Revenue [Line Items]
Lease Revenue	0	0
Total Revenue	6,500	26,123
Fixed Price | Point-in-Time
Disaggregation of Revenue [Line Items]
Topic 606 Revenue	0	0
Fixed Price | Over Time
Disaggregation of Revenue [Line Items]
Topic 606 Revenue	6,500	26,123
Other
Disaggregation of Revenue [Line Items]
Lease Revenue	1,167	1,167
Total Revenue	1,167	1,167
Other | Point-in-Time
Disaggregation of Revenue [Line Items]
Topic 606 Revenue	0	0
Other | Over Time
Disaggregation of Revenue [Line Items]
Topic 606 Revenue	$ 0	$ 0