SEGMENT INFORMATION - Analysis of Segment Information (Details) $ in Thousands	3 Months Ended		6 Months Ended
	Sep. 30, 2017 USD ($)	Sep. 30, 2016 USD ($)	Sep. 30, 2017 USD ($) country	Sep. 30, 2016 USD ($)	Mar. 31, 2017 USD ($)
Segment Reporting Information [Line Items]
Number of countries, tobacco is purchased in (more than 35) | country			35
Number of countries, tobacco is shipped to | country			90
Total revenue	$ 447,339	$ 389,423	$ 724,332	$ 650,524
Total operating income	39,112	18,446	38,206	13,170
Debt retirement expense	0	0	(2,975)	0
Interest expense	32,756	31,904	66,856	62,507
Interest income	727	2,204	1,694	4,042
Income (loss) before income taxes and other items	7,083	(11,254)	(23,981)	(45,295)
Total assets	1,935,203	1,998,724	1,935,203	1,998,724	$ 1,971,872
North America
Segment Reporting Information [Line Items]
Total revenue	59,331	58,823	124,618	108,760
Total operating income	7,772	3,659	6,123	2,681
Total assets	382,940	396,413	382,940	396,413	375,782
Other regions
Segment Reporting Information [Line Items]
Total revenue	388,008	330,600	599,714	541,764
Total operating income	31,340	14,787	32,083	10,489
Total assets	$ 1,552,263	$ 1,602,311	$ 1,552,263	$ 1,602,311	$ 1,596,090