Leases - Narrative (Details) - USD ($) $ in Thousands	12 Months Ended
	Mar. 31, 2020	Mar. 31, 2019	Mar. 31, 2018
Lessee, Lease, Description [Line Items]
Operating lease costs	$ 16,792	$ 20,846	$ 21,829
Proceeds from sale of property, plant, and equipment	9,677	$ 5,148	$ 3,161
Gain from sale-leaseback transaction	6,400
Europe
Lessee, Lease, Description [Line Items]
Proceeds from sale of property, plant, and equipment	$ 7,084