Debt and Finance Lease Obligations (Changes in Accretable Yield on Securitized Financings) (Details) - USD ($) $ in Thousands	3 Months Ended
	Jun. 29, 2019	Jun. 30, 2018
Accretable Yield Movement on Acquired Securitized Financings
Balance at the beginning of the period	$ 491	$ 3,515
Accretion	(371)	(803)
Adjustment to cash flows	86	(15)
Balance at the end of the period	$ 206	$ 2,697