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Schedule V - Supplemental Information (for Property-Casualty Insurance Operations) | 12 Months Ended
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Mar. 31, 2021
Disclosure Text Block [Abstract] |
Schedule Of Supplemental Information For Property Casualty Insurance Underwriters [Text Block] | SCHEDULE V AMERCO AND CONSOLIDATED SUBSIDIARIES SUPPLEMENTAL INFORMATION (FOR PROPERTY-CASUALTY INSURANCE Operations) Years Ended December 31, 2020, 2019, AND 2018 Fiscal Year Affiliation with Registrant Deferred Policy Acquisition Cost Reserves for Unpaid Claims and Adjustment Expenses Discount if any, Deducted Unearned Premiums Net Earned Premiums (1) Net Investment Income (2) Claim and Claim Adjustment Expenses Incurred Related to Current Year Claim and Claim Adjustment Expenses Incurred Related to Prior Year Amortization of Deferred Policy Acquisition Costs Paid Claims and Claim Adjustment Expense Net Premiums Written (1) (In thousands) 2021 Consolidated property casualty entity $ - $ 177,963 $ - $ (294) $ 70,283 $ 16,335 $ 20,670 $ (3,865) $ - $ 25,759 $ 69,989 2020 Consolidated property casualty entity - 209,127 - 233 69,138 19,926 22,137 (9,535) - 24,608 66,277 2019 Consolidated property casualty entity - 228,970 - 239 60,853 9,373 19,579 (5,365) - 19,228 61,022 (1)The earned and written premiums are reported net of intersegment transactions. There were $ 1.5 million, $ 3.1 million and $ 2.8 million in written premiums and $ 1.8 million, $ 2.8 million and $ 2.6 million in earned premiums eliminated for the years ended December 31, 2020, 2019 and 2018, respectively. (2) Net Investment Income excludes net realized (gains) losses on investments of ($ 0.1 ) million, ($ 0.4 ) million and ($ 3.0 ) million for the years ended December 31, 2020, 2019 and 2018, respectively .

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- Definition The entire disclosure of supplemental information for registrant, its subsidiary and 50%-or-less-owned equity basis investee, with liability for property-casualty insurance claim. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 12 -Subsection 18 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 235 -Section S99 -Paragraph 3 -Subparagraph (SX 210.12-18) -URI http://asc.fasb.org/extlink&oid=120401096&loc=d3e575016-122915 + Details
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