Leases (Narrative) (Details) - USD ($) $ in Thousands	Sep. 30, 2020	Mar. 31, 2020
Lessee, Lease, Description [Line Items]
Finance lease liability	$ 11,076
Finance lease right-of-use assets, net	10,897	$ 5,842
GEODIS
Lessee, Lease, Description [Line Items]
Finance lease liability	5,800
Finance lease right-of-use assets, net	$ 5,800