The after-tax amount of any dividends on convertible preferred stock.

Name:	us-gaap_ConvertiblePreferredDividendsNetOfTax
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

The amount of net income (loss) for the period per each share of common stock or unit outstanding during the reporting period.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 260
-SubTopic 10
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 260
-SubTopic 10
-Section 55
-Paragraph 52
-URI http://asc.fasb.org/extlink&oid=96948231&loc=d3e4984-109258

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 225
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-04(19))
-URI http://asc.fasb.org/extlink&oid=6879464&loc=d3e573970-122913

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 260
-SubTopic 10
-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=96947427&loc=d3e1252-109256

Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 225
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03(21))
-URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688

Reference 6: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 225
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-04(23))
-URI http://asc.fasb.org/extlink&oid=6879574&loc=d3e536633-122882

Earnings Per Share (Computation Of Basic And Diluted Earnings (Loss) Per Share) (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended								12 Months Ended
	Mar. 31, 2018	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2018	Mar. 31, 2017	Mar. 31, 2016
Numerator for basic earnings per share
Net income attributable to Universal Corporation	$ 30,518	$ 45,400	$ 26,167	$ 3,577	$ 32,869	$ 53,647	$ 25,264	$ (5,476)	$ 105,662	$ 106,304	$ 109,016
Less: Dividends on convertible perpetual preferred stock									0	(11,061)	(14,748)
Stock Repurchased And Retired During Period Value Retained Earnings									0	(74,353)	0
Earnings available to Universal Corporation common shareholders for calculation of basic earnings per share					$ (41,484)	$ 49,960	$ 21,577	$ (9,163)	$ 105,662	$ 20,890	$ 94,268
Denominator for basic earnings per share
Weighted average shares outstanding									25,274,975	23,433,860	22,683,290
Basic earnings per share	$ 1.21	$ 1.80	$ 1.03	$ 0.14	$ (1.64)	$ 2.17	$ 0.95	$ (0.40)	$ 4.18	$ 0.89	$ 4.16
Numerator for diluted earnings per share
Earnings available to Universal Corporation common shareholders for calculation of basic earnings per share					$ (41,484)	$ 49,960	$ 21,577	$ (9,163)	$ 105,662	$ 20,890	$ 94,268
Add: Dividends on convertible perpetual preferred stock (if conversion assumed)									0	0	(14,748)
Earnings available to Universal Corporation common shareholders for calculation of diluted earnings per share									$ 105,662	$ 20,890	$ 109,016
Denominator for diluted earnings per share:
Weighted average shares outstanding									25,274,975	23,433,860	22,683,290
Effect of dilutive securities (if conversion or exercise assumed) Convertible perpetual preferred stock									0	0	4,853,268
Effect of dilutive securities (if conversion or exercise assumed) Employee share-based awards									233,169	336,228	288,933
Denominator for diluted earnings per share									25,508,144	23,770,088	27,825,491
Diluted earnings per share	$ 1.20	$ 1.78	$ 1.02	$ 0.14	$ (1.64)	$ 1.92	$ 0.90	$ (0.40)	$ 4.14	$ 0.88	$ 3.92