Restructuring Costs (Narrative) (Details) - USD ($)	12 Months Ended
	Mar. 31, 2019	Mar. 31, 2018	Mar. 31, 2017
Restructuring Cost and Reserve [Line Items]
Total tobacco production percentage	60.00%
Employee termination benefits	$ 4,000,000.0
Impairment of Long-Lived Assets Held-for-use	14,600,000
Goodwill, Impairment Loss	889,000	$ 0	$ 0
Restructuring and impairment costs	20,304,000	0	$ 4,359,000
Other locations
Restructuring Cost and Reserve [Line Items]
Restructuring and impairment costs	$ 900,000
HUNGARY
Restructuring Cost and Reserve [Line Items]
Restructuring and impairment costs		$ 4,400,000