Leases - (Balance Sheet Classification) (Details) - USD ($) $ in Thousands	Oct. 04, 2020	Mar. 31, 2020
Leases [Abstract]
Operating lease right-of-use asset	$ 67,072	$ 70,045
Operating lease current liabilities	21,511	21,128
Operating lease non-current liabilities	47,787	51,215
Finance lease right-of-use asset	574	540
Finance lease current liabilities	193	162
Finance lease non-current liabilities	$ 415	$ 407