Advances to Suppliers, Net - Narrative (Details) - USD ($) $ in Thousands	12 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Revenue from Contract with Customer [Abstract]
Markup and capitalized interest on tobacco advances	$ 15,468	$ 11,341
Unrecoverable advances and other capitalized costs	6,916	4,895
Expenses of unrecovered advances from abnormal yield adjustments or unrecovered amounts from prior crops	$ 171	$ 1,339