Related Party Transactions	12 Months Ended
Mar. 31, 2022
Related Party Transactions [Abstract]
Related Party Transactions	Note 19. Related Party Transactions As set forth in the Company’s Audit Committee Charter and consistent with NASDAQ Listing Rules, our Audit Committee (the “Audit Committee”) reviews and maintains oversight over related party transactions, which are required to be disclosed under the SEC rules and regulations and in accordance with GAAP. Accordingly, all such related party transactions are submitted to the Audit Committee for ongoing review and oversight. Our internal processes are designed to ensure that our legal and finance departments identify and monitor potential related party transactions that may require disclosure and Audit Committee oversight. AMERCO has engaged in related party transactions and has continuing related party interests with certain major stockholders, directors and officers of the consolidated group as disclosed below. SAC Holding Corporation and SAC Holding II Corporation (collectively “SAC Holdings”) were established in order to acquire and develop self-storage properties. These properties are being managed by us pursuant to management agreements. SAC Holdings, Four SAC Self-Storage Corporation, Five SAC Self-Storage Corporation, Galaxy Investments, L.P. and 2015 SAC Self-Storage, LLC are substantially controlled by Blackwater Investments, Inc. (“Blackwater”). Blackwater is wholly owned by Willow Grove Holdings LP, which is owned by Mark V. Shoen (a significant stockholder), and various trusts associated with Edward J. Shoen (our Chairman of the Board, President and a significant stockholder) and Mark V. Shoen. Related Party Revenues Years Ended March 31, 2022 2021 2020 (In thousands) U-Haul management fee revenue from Blackwater $ 28,546 $ 25,512 $ 24,014 U-Haul management fee revenue from Mercury 6,648 6,091 6,392 $ 35,194 $ 31,603 $ 30,406 We currently manage the self-storage properties owned or leased by Blackwater and Mercury Partners, L.P. (“Mercury”), pursuant to a standard form of management agreement, under which we receive a management fee of between 4 % and 10 % of the gross receipts plus reimbursement for certain expenses. We received management fees, exclusive of reimbursed expenses, of $ 38.5 million, $ 31.2 million and $ 29.0 million from the above-mentioned entities during fiscal 2022, 2021 and 2020, respectively. This management fee is consistent with the fee received for other properties we previously managed for third parties. Mark V. Shoen controls the general partner of Mercury. The limited partner interests of Mercury are owned indirectly by James P. Shoen and various trusts benefitting Edward J. Shoen and James P. Shoen or their descendants. Mercury holds the option to purchase a portfolio of properties currently leased by Mercury and a U-Haul subsidiary, which option is exercisable in 2024. Related Party Costs and Expenses Years Ended March 31, 2022 2021 2020 (In thousands) U-Haul lease expenses to Blackwater $ 2,445 $ 2,612 $ 2,631 U-Haul commission expenses to Blackwater 88,288 69,212 62,066 $ 90,733 $ 71,824 $ 64,697 We lease space for marketing company offices, vehicle repair shops and hitch installation centers from subsidiaries of Blackwater. The terms of the leases are similar to the terms of leases for other properties owned by unrelated parties that are leased to us. As of March 31, 2022, subsidiaries of Blackwater acted as U-Haul independent dealers. The financial and other terms of the dealership contracts with the aforementioned companies and their subsidiaries are substantially identical to the terms of those with our other independent dealers whereby commissions are paid by us based upon equipment rental revenues. These agreements and notes with subsidiaries of Blackwater, excluding Dealer Agreements, provided revenues of $ 28.5 million, expenses of $ 2.4 million and cash flows of $ 25.9 million during fiscal 2022. Revenues and commission expenses related to the Dealer Agreements were $ 417.9 million and $ 88.3 million, respectively for fiscal 2022. Management determined that we do not have a variable interest pursuant to the VIE model under ASC 810 in the holding entities of Blackwater. Related Party Assets March 31, 2022 2021 (In thousands) U-Haul receivable from Blackwater $ 41,364 $ 27,116 U-Haul receivable from Mercury 5,708 9,632 Other (a) 779 (1,353) $ 47,851 $ 35,395 (a) Timing differences for intercompany balances with insurance subsidiaries resulting from the three month difference in reporting periods.

Related Party Transactions

12 Months Ended

Mar. 31, 2022

Note 19. Related Party Transactions As set forth in the Company’s Audit Committee Charter and consistent with NASDAQ Listing Rules, our Audit Committee (the “Audit Committee”) reviews and maintains oversight over related party transactions, which are required to be disclosed under the SEC rules and regulations and in accordance with GAAP. Accordingly, all such related party transactions are submitted to the Audit Committee for ongoing review and oversight. Our internal processes are designed to ensure that our legal and finance departments identify and monitor potential related party transactions that may require disclosure and Audit Committee oversight. AMERCO has engaged in related party transactions and has continuing related party interests with certain major stockholders, directors and officers of the consolidated group as disclosed below. SAC Holding Corporation and SAC Holding II Corporation (collectively “SAC Holdings”) were established in order to acquire and develop self-storage properties. These properties are being managed by us pursuant to management agreements. SAC Holdings, Four SAC Self-Storage Corporation, Five SAC Self-Storage Corporation, Galaxy Investments, L.P. and 2015 SAC Self-Storage, LLC are substantially controlled by Blackwater Investments, Inc. (“Blackwater”). Blackwater is wholly owned by Willow Grove Holdings LP, which is owned by Mark V. Shoen (a significant stockholder), and various trusts associated with Edward J. Shoen (our Chairman of the Board, President and a significant stockholder) and Mark V. Shoen. Related Party Revenues Years Ended March 31, 2022 2021 2020 (In thousands) U-Haul management fee revenue from Blackwater $ 28,546 $ 25,512 $ 24,014 U-Haul management fee revenue from Mercury 6,648 6,091 6,392 $ 35,194 $ 31,603 $ 30,406 We currently manage the self-storage properties owned or leased by Blackwater and Mercury Partners, L.P. (“Mercury”), pursuant to a standard form of management agreement, under which we receive a management fee of between 4 % and 10 % of the gross receipts plus reimbursement for certain expenses. We received management fees, exclusive of reimbursed expenses, of $ 38.5 million, $ 31.2 million and $ 29.0 million from the above-mentioned entities during fiscal 2022, 2021 and 2020, respectively. This management fee is consistent with the fee received for other properties we previously managed for third parties. Mark V. Shoen controls the general partner of Mercury. The limited partner interests of Mercury are owned indirectly by James P. Shoen and various trusts benefitting Edward J. Shoen and James P. Shoen or their descendants. Mercury holds the option to purchase a portfolio of properties currently leased by Mercury and a U-Haul subsidiary, which option is exercisable in 2024. Related Party Costs and Expenses Years Ended March 31, 2022 2021 2020 (In thousands) U-Haul lease expenses to Blackwater $ 2,445 $ 2,612 $ 2,631 U-Haul commission expenses to Blackwater 88,288 69,212 62,066 $ 90,733 $ 71,824 $ 64,697 We lease space for marketing company offices, vehicle repair shops and hitch installation centers from subsidiaries of Blackwater. The terms of the leases are similar to the terms of leases for other properties owned by unrelated parties that are leased to us. As of March 31, 2022, subsidiaries of Blackwater acted as U-Haul independent dealers. The financial and other terms of the dealership contracts with the aforementioned companies and their subsidiaries are substantially identical to the terms of those with our other independent dealers whereby commissions are paid by us based upon equipment rental revenues. These agreements and notes with subsidiaries of Blackwater, excluding Dealer Agreements, provided revenues of $ 28.5 million, expenses of $ 2.4 million and cash flows of $ 25.9 million during fiscal 2022. Revenues and commission expenses related to the Dealer Agreements were $ 417.9 million and $ 88.3 million, respectively for fiscal 2022. Management determined that we do not have a variable interest pursuant to the VIE model under ASC 810 in the holding entities of Blackwater. Related Party Assets March 31, 2022 2021 (In thousands) U-Haul receivable from Blackwater $ 41,364 $ 27,116 U-Haul receivable from Mercury 5,708 9,632 Other (a) 779 (1,353) $ 47,851 $ 35,395 (a) Timing differences for intercompany balances with insurance subsidiaries resulting from the three month difference in reporting periods.