Significant Accounting Policies Other Income (Details) - USD ($) $ in Thousands		3 Months Ended					12 Months Ended
	Mar. 26, 2014	Mar. 31, 2016	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2014	Mar. 31, 2016	Mar. 31, 2015	Mar. 31, 2014
Components of Other Income, Nonoperating [Line Items]
Proceeds from sale of property, plant and equipment							$ 2,270	$ 16,840	$ 9,336
Losses on sale of receivables							(5,680)	(7,425)	(6,977)
Other income (expense)		$ 105,302	$ 594	$ (1,029)	$ 560		105,427	(66)	18,760
Turkey Other Property Sales [Member]
Components of Other Income, Nonoperating [Line Items]
Proceeds from sale of property, plant and equipment							0	0	2,700
Assignment Of Tobacco Suppliers And Sale Of Related Assets [Member]
Components of Other Income, Nonoperating [Line Items]
Proceeds from sale of property, plant and equipment							0	0	20,899
Other Sales Of Assets And Expenses [Member]
Components of Other Income, Nonoperating [Line Items]
Proceeds from sale of property, plant and equipment							4,904	7,359	2,138
Brazilian Subsidiary [Member]
Components of Other Income, Nonoperating [Line Items]
Ownership percentage sold	51.00%					51.00%
Proceeds from sale of subsidiary						$ 8,761
Noncontrolling interest retained						19,691			19,691
Net assets of subsidiary						7,553			7,553
Gain on disposal of subsidiary						$ 20,899
Mashonaland Tobacco Company, LTD [Member]
Components of Other Income, Nonoperating [Line Items]
Gain on acquisition of business							106,203	$ 0	$ 0
Cash		10,277					10,277
Non-cash		$ 95,926					$ 95,926