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Benefit Plans - Narrative (Details)
$ in Thousands, £ in Millions
3 Months Ended 6 Months Ended
Apr. 06, 2020
USD ($)
Apr. 06, 2020
GBP (£)
Dec. 31, 2021
USD ($)
Jun. 26, 2021
USD ($)
Jun. 27, 2020
USD ($)
Jun. 27, 2020
GBP (£)
Jun. 26, 2021
USD ($)
Jun. 27, 2020
USD ($)
Apr. 07, 2020
USD ($)
Defined Benefit Plan Disclosure                  
Contributions expected       $ 2,200     $ 2,200    
Expected direct payments       3,800     3,800    
Defined benefit plan expense       1,106 $ 940   2,212 $ 1,634  
Estimated decrease in pension cost                 $ 55,000
Estimated percent reduction in pension costs                 37.00%
Benefit obligation, unamortized actuarial loss $ (13,400) £ 13.4              
Cash contribution         10,400 £ 8.4      
Defined benefit pension plan and other adjustments                  
Defined Benefit Plan Disclosure                  
Benefit obligation, unamortized actuarial loss | £   £ 10.9              
Forecast | Minimum                  
Defined Benefit Plan Disclosure                  
Estimated settlement charge     $ 18,000            
Forecast | Maximum                  
Defined Benefit Plan Disclosure                  
Estimated settlement charge     $ 22,000            
Foreign Plan                  
Defined Benefit Plan Disclosure                  
Defined benefit plan expense       500 500     1,000  
Other comprehensive income as component of net period benefit cost, before tax       $ 200 $ 200   $ 300 $ 400