Stockholders' Equity	12 Months Ended
	Mar. 31, 2021
Stockholders' Equity Attributable to Parent [Abstract]
Stockholders' Equity	F- 26   amerco and consolidated subsidiaries notes to consolidated financial statements - (continued) Note 13. Stockholders' Equity The following table lists the dividends that have been declared and issued for fiscal years 2021 and 2020. Common Stock Dividends Declared Date   Per Share Amount   Record Date   Dividend Date               December 9, 2020 $ 2.00   December 21, 2020   December 30, 2020 August 20, 2020   0.50   September 7, 2020   September 21, 2020 December 4, 2019   0.50   December 19, 2019   January 6, 2020 August 22, 2019   0.50   September 9, 2019   September 23, 2019   As of March 31, 2021, no awards had been issued under the 2016 AMERCO Stock Option Plan.