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Retirement Plans - (Net Periodic Benefit Cost) (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Jan. 03, 2021
Dec. 31, 2019
Jan. 03, 2021
Dec. 31, 2019
United States Plans        
Defined Benefit Plan Disclosure [Line Items]        
Service cost $ 0 $ 0 $ 0 $ 0
Interest cost 135 154 400 462
Expected return on plan assets (73) (110) (204) (336)
Amortization and deferral 92 38 357 141
Net periodic benefit cost 154 82 553 267
International Plans        
Defined Benefit Plan Disclosure [Line Items]        
Service cost 252 229 739 691
Interest cost 352 375 1,027 1,115
Expected return on plan assets (480) (542) (1,401) (1,598)
Amortization and deferral 263 253 766 751
Net periodic benefit cost $ 387 $ 315 $ 1,131 $ 959