Debt and Finance Lease Obligations (Changes in Accretable Yield on Securitized Financings) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Sep. 28, 2019	Sep. 29, 2018	Sep. 28, 2019	Sep. 29, 2018
Accretable Yield Movement on Acquired Securitized Financings
Balance at the beginning of the period	$ 206	$ 2,697	$ 491	$ 3,515
Accretion	(206)	(774)	(577)	(1,577)
Adjustment to cash flows	0	89	86	(104)
Balance at the end of the period	$ 0	$ 1,834	$ 0	$ 1,834