Quarterly report pursuant to Section 13 or 15(d)

Shareholders' Equity - Components of Other Comprehensive Income (Loss) (Details)

v3.20.1
Shareholders' Equity - Components of Other Comprehensive Income (Loss) (Details) - USD ($)
$ in Thousands
 3 Months Ended
Mar. 28, 2020
Mar. 30, 2019
Accumulated Other Comprehensive Income (Loss) [Line Items]    
Other Comprehensive Income $ (2,089) $ (120)
Total Other Comprehensive Loss (2,089) (120)
Foreign Currency Translation Adjustments    
Accumulated Other Comprehensive Income (Loss) [Line Items]    
Other Comprehensive Income (2,304) (270)
Total Other Comprehensive Loss (2,304) (270)
Amortization of Prior Service Cost    
Accumulated Other Comprehensive Income (Loss) [Line Items]    
Reclassification to General and Administrative Expense 101 101
Amortization of Net Actuarial Losses    
Accumulated Other Comprehensive Income (Loss) [Line Items]    
Reclassification to General and Administrative Expense 171 85
Retirement Liability Adjustment    
Accumulated Other Comprehensive Income (Loss) [Line Items]    
Other Comprehensive Income 215 150
Tax Benefit (57) (36)
Total Other Comprehensive Loss $ 215 $ 150