Stockholders' Equity	3 Months Ended
	Jun. 30, 2021
Stockholders' Equity [Abstract]
7. Stockholders' Equity	7. Stockholders’ Equity The following table lists the dividends that have been declared and issued for fiscal year 2022. Common Stock Dividends Declared Date   Per Share Amount   Record Date   Dividend Date               June 9, 2021 $ 0.50   June 24, 2021   July 8, 2021   As of June 30, 2021, no awards had been issued under the 2016 AMERCO Stock Option Plan.