Postretirement Benefit Plans (Schedule of Benefit Obligation, Fair Value of Plan Assets and Funded Status) (Details) - USD ($)	12 Months Ended
	Mar. 30, 2019	Mar. 31, 2018
Change in benefit obligation:
Total benefit obligation, beginning balance	$ 40,601,000	$ 21,123,000
Interest cost	0	651,000
Plan settlements	(40,601,000)	0
Benefits paid and expenses	0	(312,000)
Change in foreign currency exchange rate	0	2,869,000
Actuarial loss	0	16,270,000
Total benefit obligation, ending balance	0	40,601,000
Change in plan assets:
Fair value of plan assets, beginning balance	40,601,000	22,143,000
Actual return on plan assets	0	2,700,000
Employer contributions	0	12,877,000
Plan settlements	(40,601,000)	0
Change in foreign currency exchange rate	0	3,193,000
Benefits paid and expenses	0	(312,000)
Fair value of plan assets, ending balance	0	40,601,000
Funded status of Scheme at end of year	$ 0	$ 0