Retirement Plans - (Net Periodic Benefit Cost) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Oct. 04, 2020	Sep. 30, 2019	Oct. 04, 2020	Sep. 30, 2019
United States Plans
Defined Benefit Plan Disclosure [Line Items]
Service cost	$ 0	$ 0	$ 0	$ 0
Interest cost	133	154	265	308
Expected return on plan assets	(66)	(114)	(131)	(226)
Amortization and deferral	132	51	265	103
Net periodic benefit cost	199	91	399	185
International Plans
Defined Benefit Plan Disclosure [Line Items]
Service cost	252	227	487	462
Interest cost	348	364	675	740
Expected return on plan assets	(474)	(518)	(921)	(1,056)
Amortization and deferral	259	245	503	498
Net periodic benefit cost	$ 385	$ 318	$ 744	$ 644