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Related Party Transations (Table Text Block) | 3 Months Ended | 9 Months Ended
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Dec. 31, 2019 | Dec. 31, 2019
Related Party Revenue [Abstract] |  |
Related Party Revenue | Quarter Ended December 31, 2019 2018 (Unaudited) (In thousands) U-Haul management fee revenue from Blackwater $ 5,763 $ 5,776 U-Haul management fee revenue from Mercury 3,335 2,123 $ 9,098 $ 7,899 | Nine Months Ended December 31, 2019 2018 (Unaudited) (In thousands) U-Haul management fee revenue from Blackwater $ 18,330 $ 18,254 U-Haul management fee revenue from Mercury 5,157 4,253 $ 23,487 $ 22,507
Related Party costs and expenses | Quarter Ended December 31, 2019 2018 (Unaudited) (In thousands) U-Haul lease expenses to Blackwater $ 658 $ 669 U-Haul commission expenses to Blackwater 14,140 14,296 $ 14,798 $ 14,965 | Nine Months Ended December 31, 2019 2018 (Unaudited) (In thousands) U-Haul lease expenses to Blackwater $ 1,974 $ 2,009 U-Haul commission expenses to Blackwater 49,959 49,129 $ 51,933 $ 51,138
Related party assets |  | December 31, March 31, 2019 2019 (Unaudited) (In thousands) U-Haul receivable from Blackwater $ 37,840 $ 25,158 U-Haul receivable from Mercury 9,720 7,234 Other (a) 428 (1,503) $ 47,988 $ 30,889 (a) Timing differences for intercompany balances with insurance subsidiaries resulting from the three-month difference in reporting periods .

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- Definition The Company has not provided financial or other support explicitly or implicitly during the period ended to any of these entities that it was not previously contractually required to provide. The carrying amount and the classification of assets and liabilities in the Company's balance sheet that related to the Company's variable interest in the Blackwater's entities are noted here, which approximate the maximum exposure to loss as a result of the Company's involvement with these entities. + References No definition available. + Details
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- References No definition available. + Details
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- Definition Tabular disclosure of each detailed component of other operating costs and expenses that are applicable to sales and revenues, but not included in the cost of sales in the income statement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.3) -URI http://asc.fasb.org/extlink&oid=115205541&loc=SL114868664-224227 + Details
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- Definition Tabular disclosure of related party transactions. Examples of related party transactions include, but are not limited to, transactions between (a) a parent company and its subsidiary; (b) subsidiaries of a common parent; (c) and entity and its principal owners and (d) affiliates. + References No definition available. + Details
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