Leases (Schedule of Lease Expense and Other Information) (Details) $ in Thousands	3 Months Ended	6 Months Ended
	Sep. 28, 2019 USD ($)	Sep. 28, 2019 USD ($)
Leases [Abstract]
Operating lease - in excess of 12 months	$ 3,334	$ 6,797
Variable lease	1,166	2,262
Short-term lease	8	14
Total operating lease expense	$ 4,508	9,073
Cash paid for amounts included in the measurement of lease liabilities (in thousands)
Operating cash flows from operating leases		7,161
Right-of-use assets obtained in exchange for new operating lease liabilities (in thousands)		$ 0
Weighted-average remaining lease term - operating leases (in years)	20 years	20 years
Weighted-average discount rate - operating leases	4.00%	4.00%