Stockholders' Equity	6 Months Ended
	Sep. 30, 2020
Stockholders' Equity [Abstract]
7. Stockholders' Equity	7. Stockholders' Equity The dividends declared or paid during the first six months of fiscal 2021 were as follows: Common Stock Dividends Declared Date   Per Share Amount   Record Date   Dividend Date               August 20, 2020 $ 0.50   September 7, 2020   September 21, 2020   On June 8, 2016, our stockholders' approved the 2016 AMERCO Stock Option Plan (Shelf Stock Option Plan). As of September 30, 2020, no awards had been issued under this plan.