Leases - (Supplemental Cash Flow Information) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Oct. 04, 2020	Sep. 30, 2019	Oct. 04, 2020	Sep. 30, 2019
Operating cash flows from finance leases	$ 7	$ 10	$ 14	$ 22
Operating cash flows from operating leases	6,739	7,170	13,660	14,383
Financing cash flows from finance leases	45	138	86	281
Supplemental non-cash information on lease liabilities arising from right-of-use assets:
Right-of-use assets obtained in exchange for new finance lease liabilities	87	0	87	0
Right-of-use assets obtained in exchange for new operating lease liabilities	$ 955	$ 2,318	$ 7,132	$ 4,946