SEGMENT INFORMATION - Analysis of Segment Information (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
Segment Reporting Information [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
Total operating income	39,355	40,237	40,075	56,633	79,128	53,846	111,904	87,342
Total assets	2,023,719	2,054,188		2,023,719	2,054,188		1,966,631	1,971,872
Trade and other receivables, net	290,052	240,817		290,052	240,817		304,399	254,185
Goodwill	34,109	16,463		34,109	16,463		27,546	16,463
Equity in net assets of investee companies	67,568	66,287		67,568	66,287		67,369	51,443
Depreciation and amortization	26,887	24,845		26,887	24,845		33,598	34,476
Capitalized expenditures	35,174	17,262		35,174	17,262		23,298	12,737
Leaf Tobacco - North America Segment
Segment Reporting Information [Line Items]
Total sales and other operating revenues	77,850	120,689	108,869	181,764	245,307	217,629	451,383	396,217
Total operating income	2,870	7,340	5,685	7,888	13,463	8,366	26,446	15,333
Total assets	318,295	495,950		318,295	495,950		366,495	375,782
Trade and other receivables, net	22,724	34,042		22,724	34,042		46,096	40,212
Goodwill	2,795	2,794		2,795	2,794		2,795	2,794
Equity in net assets of investee companies	0	0		0	0		0	0
Depreciation and amortization	5,365	5,572		5,365	5,572		7,435	7,543
Capitalized expenditures	3,011	4,461		3,011	4,461		4,649	3,638
Leaf Tobacco - Other Regions Segment
Segment Reporting Information [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
Total operating income	44,133	32,897	34,390	70,010	65,665	45,480	88,742	72,009
Total assets	1,598,879	1,558,238		1,598,879	1,558,238		1,528,859	1,596,090
Trade and other receivables, net	266,104	206,775		266,104	206,775		257,968	213,973
Goodwill	13,669	13,669		13,669	13,669		13,669	13,669
Equity in net assets of investee companies	55,283	56,808		55,283	56,808		57,434	51,832
Depreciation and amortization	19,398	19,273		19,398	19,273		25,754	26,933
Capitalized expenditures	13,263	12,801		13,263	12,801		17,017	9,099
Other Products and Services Segment
Segment Reporting Information [Line Items]
Total sales and other operating revenues	4,918	0	0	10,332	0	0	535	0
Total operating income	(7,648)	0	$ 0	(21,265)	0	$ 0	(3,284)	0
Total assets	106,545	0		106,545	0		71,277	0
Trade and other receivables, net	1,224	0		1,224	0		335	0
Goodwill	17,645	0		17,645	0		11,082	0
Equity in net assets of investee companies	12,285	9,479		12,285	9,479		9,935	(389)
Depreciation and amortization	2,124	0		2,124	0		409	0
Capitalized expenditures	$ 18,900	$ 0		$ 18,900	$ 0		$ 1,632	$ 0