Supplemental income statement information related to leases (Details) - USD ($) $ in Thousands		3 Months Ended		9 Months Ended
		Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2020	Dec. 31, 2019
Supplemental income statement information related to leases [Line Items]
Operating Lease, Cost	[1]	$ 5,921	$ 4,918	$ 16,707	$ 14,177
Cost of goods sold [Member]
Supplemental income statement information related to leases [Line Items]
Operating Lease, Cost		3,401	2,786	9,531	7,995
Selling, General and Administrative Expenses [Member]
Supplemental income statement information related to leases [Line Items]
Operating Lease, Cost		$ 2,520	$ 2,132	$ 7,176	$ 6,182

[1] Includes variable operating lease costs.