| Segment Information (Narrative) (Details) | 3 Months Ended | 
|---|---|
| Mar. 28, 2020  segment  item | |
| Segment Information [Abstract] | |
| Number of reportable segments | segment | 1 | 
| Percentage of revenue from major customers, maximum | 10.00% | 
| Geographic regions | item | 2 | 
| X | ||||||||||
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- Definition 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. No definition available. 
 | 
| X | ||||||||||
| 
- References No definition available. 
 | 
| X | ||||||||||
| 
- Definition Number Of Geographic Regions No definition available. 
 | 
| X | ||||||||||
| 
- Definition Percentage Of Revenue From Major Customer No definition available. 
 |