REVENUE RECOGNITION - Revenue Disaggregated by Product or Service (Details) - USD ($) $ in Thousands	3 Months Ended			9 Months Ended			12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016	Mar. 31, 2018	Mar. 31, 2017
Disaggregation of Revenue [Line Items]
Total sales and other operating revenues	$ 524,487	$ 477,783	$ 454,535	$ 1,210,351	$ 1,202,115	$ 1,105,060	$ 1,845,966	$ 1,714,750
Leaf Tobacco - North America Segment
Disaggregation of Revenue [Line Items]
Total sales and other operating revenues	77,850	120,689	108,869	181,764	245,307	217,629	451,383	396,217
Leaf Tobacco - North America Segment | Product revenue
Disaggregation of Revenue [Line Items]
Total sales and other operating revenues	60,280			152,725
Leaf Tobacco - North America Segment | Processing and other revenues
Disaggregation of Revenue [Line Items]
Total sales and other operating revenues	17,570			29,039
Leaf Tobacco - Other Regions Segment
Disaggregation of Revenue [Line Items]
Total sales and other operating revenues	441,719	357,094	345,666	1,018,255	956,808	887,431	1,394,048	1,318,533
Leaf Tobacco - Other Regions Segment | Product revenue
Disaggregation of Revenue [Line Items]
Total sales and other operating revenues	432,423			977,503
Leaf Tobacco - Other Regions Segment | Processing and other revenues
Disaggregation of Revenue [Line Items]
Total sales and other operating revenues	9,296			40,752
Other Products and Services Segment
Disaggregation of Revenue [Line Items]
Total sales and other operating revenues	$ 4,918	$ 0	$ 0	$ 10,332	$ 0	$ 0	$ 535	$ 0