Summary of Significant Accounting Policies - Narrative (Details) - USD ($) $ in Thousands |
3 Months Ended | 9 Months Ended | |
|---|---|---|---|
Sep. 28, 2019 |
Sep. 28, 2019 |
Sep. 29, 2018 |
|
| Accounting Policies [Abstract] | |||
| Asset impairment | $ 96 | $ 6,896 | $ 832 |
| X | ||||||||||
- References No definition available.
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| X | ||||||||||
- Definition The amount of impairment loss recognized in the period resulting from the write-down of the carrying amount of a finite-lived intangible asset to fair value. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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