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Consolidated Statement of Operations by Industry Segment (Details) (USD $) In Thousands, unless otherwise specified | 12 Months Ended
--- | ---
Mar. 31, 2014 | Mar. 31, 2013 | Mar. 31, 2012
Revenues: |  |  |  |  |  |
Self-moving equipment rentals | $ 1,955,423 |  | $ 1,767,520 |  | $ 1,678,256 |
Self-storage revenues | 181,794 |  | 152,660 |  | 134,376 |
Self-moving and self-storage products and service sales | 234,187 |  | 221,117 |  | 213,854 |
Property management fees | 24,493 |  | 24,378 |  | 23,266 |
Life insurance premiums | 157,919 |  | 178,115 |  | 277,562 |
Property and casualty insurance premiums | 41,052 |  | 34,342 |  | 32,631 |
Net investment and interest income | 79,591 |  | 82,903 |  | 73,552 |
Other revenue | 160,793 |  | 97,552 |  | 78,530 |
Total revenues | 2,835,252 |  | 2,558,587 |  | 2,512,027 |
Costs and expenses: |  |  |  |  |  |
Operating expenses | 1,288,481 |  | 1,170,568 |  | 1,093,190 |
Commission expenses | 252,525 |  | 228,124 |  | 212,190 |
Cost of sales | 127,270 |  | 107,216 |  | 116,542 |
Benefits and losses | 156,702 |  | 180,676 |  | 320,191 |
Amortization of deferred policy acquisition costs | 19,982 |  | 17,376 |  | 13,791 |
Lease expense | 100,466 |  | 117,448 |  | 131,215 |
Depreciation, net of (gains) losses on disposals | 259,612 |  | 237,996 |  | 208,901 |
Total expenses | 2,205,038 |  | 2,059,404 |  | 2,096,020 |
Earnings (loss) from operations before subsidiaries | 630,214 |  | 499,183 |  | 416,007 |
Equity in earnings of subsidiaries | 0 |  | 0 |  | 0 |
Earnings from operations | 630,214 |  | 499,183 |  | 416,007 |
Interest income (expense) | (92,692) |  | (90,696) |  | (90,371) |
Total pretax earnings | 537,522 |  | 408,487 |  | 325,636 |
Income tax expense | (195,131) |  | (143,779) |  | (120,269) |
Net earnings | 342,391 |  | 264,708 |  | 205,367 |
Less: Excess of redemption value over carrying value of preferred shares redeemed |  |  |  |  | (5,908) |
Preferred stock dividends paid |  |  |  |  | (2,913) |
Earnings available to common shareholders | 342,391 |  | 264,708 |  | 196,546 |
AMERCO [Member] |  |  |  |  |  |
Revenues: |  |  |  |  |  |
Total revenues | 6,465 |  | 5,329 |  | 6,085 |
Costs and expenses: |  |  |  |  |  |
Operating expenses | 6,636 |  | 13,611 |  | 9,081 |
Total expenses | 6,733 |  | 13,708 |  | 9,179 |
Equity in earnings of subsidiaries | 287,803 |  | 212,164 |  | 149,160 |
Interest income (expense) | (86,916) |  | (91,125) |  | (94,278) |
Total pretax earnings | 374,451 |  | 294,910 |  | 240,344 |
Income tax expense | (32,060) |  | (30,202) |  | (34,649) |
Net earnings | 342,391 |  | 264,708 |  | 205,695 |
Less: Excess of redemption value over carrying value of preferred shares redeemed |  |  |  |  | (5,908) |
Preferred stock dividends paid |  |  |  |  | (3,241) |
Earnings available to common shareholders | 342,391 |  | 264,708 |  | 196,546 |
Eliminations |  |  |  |  |  |
Revenues: |  |  |  |  |  |
Self-moving equipment rentals | (2,786) | [1] | (1,538) |  | (1,707) | [1]
Self-storage revenues | 0 |  | 0 |  | 0 |
Self-moving and self-storage products and service sales | 0 |  | 0 |  | 0 |
Property management fees | 0 |  | 0 |  | 0 |
Life insurance premiums | 0 |  | 0 |  | 0 |
Property and casualty insurance premiums | 0 |  | 0 |  | 0 |
Net investment and interest income | (611) | [2] | (427) | [2] | (1,662) | [2],[3],[4]
Other revenue | (473) | [2] | (1,480) | [2] | (1,387) | [2]
Total revenues | (3,870) |  | (3,445) |  | (4,756) |
Costs and expenses: |  |  |  |  |  |
Operating expenses | (3,217) | [1],[2],[4] | (2,984) | [1],[2],[4] | (3,087) | [1],[2],[4]
Commission expenses | 0 |  | 0 |  | 0 |
Cost of sales | 0 |  | 0 |  | 0 |
Benefits and losses | 0 |  | 0 |  | 0 |
Amortization of deferred policy acquisition costs | 0 |  | 0 |  | 0 |
Lease expense | (183) | [2] | (167) | [2] | (1,187) | [2]
Depreciation, net of (gains) losses on disposals | 0 |  | 0 |  | 0 |
Total expenses | (3,400) |  | (3,151) |  | (4,274) |
Earnings (loss) from operations before subsidiaries | (470) |  | (294) |  | (482) |
Equity in earnings of subsidiaries | (29,992) | [5] | (24,241) | [5] | 10,378 | [5]
Earnings from operations | (30,462) |  | (24,535) |  | 9,896 |
Interest income (expense) | 470 | [2] | 294 | [2] | 154 | [2]
Total pretax earnings | (29,992) |  | (24,241) |  | 10,050 |
Income tax expense | 0 |  | 0 |  | 0 |
Net earnings | (29,992) |  | (24,241) |  | 10,050 |
Less: Excess of redemption value over carrying value of preferred shares redeemed |  |  |  |  | 0 |
Preferred stock dividends paid |  |  |  |  | 328 | [3]
Earnings available to common shareholders | (29,992) |  | (24,241) |  | 10,378 |
Property and Casualty Insurance [Member] | Operating Segments [Member] |  |  |  |  |  |
Revenues: |  |  |  |  |  |
Self-moving equipment rentals | 0 | [6] | 0 | [7] | 0 | [8]
Self-storage revenues | 0 | [6] | 0 | [7] | 0 | [8]
Self-moving and self-storage products and service sales | 0 | [6] | 0 | [7] | 0 | [8]
Property management fees | 0 | [6] | 0 | [7] | 0 | [8]
Life insurance premiums | 0 | [6] | 0 | [7] | 0 | [8]
Property and casualty insurance premiums | 41,052 | [6] | 34,342 | [7] | 32,631 | [8]
Net investment and interest income | 10,592 | [6] | 13,858 | [7] | 9,955 | [8]
Other revenue | 0 | [6] | 0 | [7] | 0 | [8]
Total revenues | 51,644 | [6] | 48,200 | [7] | 42,586 | [8]
Costs and expenses: |  |  |  |  |  |
Operating expenses | 20,799 | [6] | 18,007 | [7] | 13,270 | [8]
Commission expenses | 0 | [6] | 0 | [7] | 0 | [8]
Cost of sales | 0 | [6] | 0 | [7] | 0 | [8]
Benefits and losses | 11,513 | [6] | 15,999 | [7] | 65,742 | [8]
Amortization of deferred policy acquisition costs | 0 | [6] | 0 | [7] | 0 | [8]
Lease expense | 0 | [6] | 0 | [7] | 0 | [8]
Depreciation, net of (gains) losses on disposals | 0 | [6] | 0 | [7] | 0 | [8]
Total expenses | 32,312 | [6] | 34,006 | [7] | 79,012 | [8]
Earnings (loss) from operations before subsidiaries | 19,332 | [6] | 14,194 | [7] | (36,426) | [8]
Equity in earnings of subsidiaries | 0 | [6] | 0 | [7] | 0 | [8]
Earnings from operations | 19,332 | [6] | 14,194 | [7] | (36,426) | [8]
Interest income (expense) | 0 | [6] | 0 | [7] | 0 | [8]
Total pretax earnings | 19,332 | [6] | 14,194 | [7] | (36,426) | [8]
Income tax expense | (6,670) | [6] | (4,938) | [7] | 12,863 | [8]
Net earnings | 12,662 |  | 9,256 | [9] | (23,563) | [8]
Less: Excess of redemption value over carrying value of preferred shares redeemed |  |  |  |  | 0 | [8]
Preferred stock dividends paid |  |  |  |  | 0 | [8]
Earnings available to common shareholders | 12,662 | [6] | 9,256 | [7] | (23,563) | [8]
Life Insurance [Member] | Operating Segments [Member] |  |  |  |  |  |
Revenues: |  |  |  |  |  |
Self-moving equipment rentals | 0 | [6] | 0 | [7] | 0 | [8]
Self-storage revenues | 0 | [6] | 0 | [7] | 0 | [8]
Self-moving and self-storage products and service sales | 0 | [6] | 0 | [7] | 0 | [8]
Property management fees | 0 | [6] | 0 | [7] | 0 | [8]
Life insurance premiums | 157,919 | [6] | 178,115 | [7] | 277,562 | [8]
Property and casualty insurance premiums | 0 | [6] | 0 | [7] | 0 | [8]
Net investment and interest income | 54,398 | [6] | 50,850 | [7] | 38,127 | [8]
Other revenue | 3,211 | [6] | 2,525 | [7] | 1,585 | [8]
Total revenues | 215,528 | [6] | 231,490 | [7] | 317,274 | [8]
Costs and expenses: |  |  |  |  |  |
Operating expenses | 23,686 | [6] | 26,482 | [7] | 28,885 | [8]
Commission expenses | 0 | [6] | 0 | [7] | 0 | [8]
Cost of sales | 0 | [6] | 0 | [7] | 0 | [8]
Benefits and losses | 145,189 | [6] | 164,677 | [7] | 254,449 | [8]
Amortization of deferred policy acquisition costs | 19,982 | [6] | 17,376 | [7] | 13,791 | [8]
Lease expense | 0 | [6] | 0 | [7] | 0 | [8]
Depreciation, net of (gains) losses on disposals | 0 | [6] | 0 | [7] | 0 | [8]
Total expenses | 188,857 | [6] | 208,535 | [7] | 297,125 | [8]
Earnings (loss) from operations before subsidiaries | 26,671 | [6] | 22,955 | [7] | 20,149 | [8]
Equity in earnings of subsidiaries | 0 | [6] | 0 | [7] | 0 | [8]
Earnings from operations | 26,671 | [6] | 22,955 | [7] | 20,149 | [8]
Interest income (expense) | 0 | [6] | 0 | [7] | 0 | [8]
Total pretax earnings | 26,671 | [6] | 22,955 | [7] | 20,149 | [8]
Income tax expense | (9,341) | [6] | (7,970) | [7] | (6,964) | [8]
Net earnings | 17,330 |  | 14,985 | [9] | 13,185 | [8]
Less: Excess of redemption value over carrying value of preferred shares redeemed |  |  |  |  | 0 | [8]
Preferred stock dividends paid |  |  |  |  | 0 | [8]
Earnings available to common shareholders | 17,330 | [6] | 14,985 | [7] | 13,185 | [8]
Moving and Storage Operating Segment | Operating Segments [Member] |  |  |  |  |  |
Revenues: |  |  |  |  |  |
Self-moving equipment rentals | 1,958,209 |  | 1,769,058 |  | 1,679,963 |
Self-storage revenues | 181,794 |  | 152,660 |  | 134,376 |
Self-moving and self-storage products and service sales | 234,187 |  | 221,117 |  | 213,854 |
Property management fees | 24,493 |  | 24,378 |  | 23,266 |
Life insurance premiums | 0 |  | 0 |  | 0 |
Property and casualty insurance premiums | 0 |  | 0 |  | 0 |
Net investment and interest income | 15,212 |  | 18,622 |  | 27,132 |
Other revenue | 158,055 |  | 96,507 |  | 78,332 |
Total revenues | 2,571,950 |  | 2,282,342 |  | 2,156,923 |
Costs and expenses: |  |  |  |  |  |
Operating expenses | 1,247,213 |  | 1,129,063 |  | 1,054,122 |
Commission expenses | 252,525 |  | 228,124 |  | 212,190 |
Cost of sales | 127,270 |  | 107,216 |  | 116,542 |
Benefits and losses | 0 |  | 0 |  | 0 |
Amortization of deferred policy acquisition costs | 0 |  | 0 |  | 0 |
Lease expense | 100,649 |  | 117,615 |  | 132,402 |
Depreciation, net of (gains) losses on disposals | 259,612 |  | 237,996 |  | 208,901 |
Total expenses | 1,987,269 |  | 1,820,014 |  | 1,724,157 |
Earnings (loss) from operations before subsidiaries | 584,681 |  | 462,328 |  | 432,766 |
Equity in earnings of subsidiaries | 29,992 |  | 24,241 |  | (10,378) |
Earnings from operations | 614,673 |  | 486,569 |  | 422,388 |
Interest income (expense) | (93,162) |  | (90,990) |  | (90,525) |
Total pretax earnings | 521,511 |  | 395,579 |  | 331,863 |
Income tax expense | (179,120) |  | (130,871) |  | (126,168) |
Net earnings | 342,391 |  | 264,708 |  | 205,695 |
Less: Excess of redemption value over carrying value of preferred shares redeemed |  |  |  |  | (5,908) |
Preferred stock dividends paid |  |  |  |  | (3,241) |
Earnings available to common shareholders | 342,391 |  | 264,708 |  | 196,546 |
Moving and Storage Operating Segment | Operating Segments [Member] | Moving and Storage Operating Eliminations |  |  |  |  |  |
Revenues: |  |  |  |  |  |
Self-moving equipment rentals | 0 |  | 0 |  | 0 |
Self-storage revenues | 0 |  | 0 |  | 0 |
Self-moving and self-storage products and service sales | 0 |  | 0 |  | 0 |
Property management fees | 0 |  | 0 |  | 0 |
Life insurance premiums | 0 |  | 0 |  | 0 |
Property and casualty insurance premiums | 0 |  | 0 |  | 0 |
Net investment and interest income | 0 |  | 0 |  | 0 |
Other revenue | (110,111) | [2] | (94,976) | [2] | (86,108) | [2]
Total revenues | (110,111) |  | (94,976) |  | (86,108) |
Costs and expenses: |  |  |  |  |  |
Operating expenses | (110,111) | [2] | (94,976) | [2] | (86,108) | [2]
Commission expenses | 0 |  | 0 |  | 0 |
Cost of sales | 0 |  | 0 |  | 0 |
Benefits and losses | 0 |  | 0 |  | 0 |
Amortization of deferred policy acquisition costs | 0 |  | 0 |  | 0 |
Lease expense | 0 |  | 0 |  | 0 |
Depreciation, net of (gains) losses on disposals | 0 |  | 0 |  | 0 |
Total expenses | (110,111) |  | (94,976) |  | (86,108) |
Earnings (loss) from operations before subsidiaries | 0 |  | 0 |  | 0 |
Equity in earnings of subsidiaries | (257,811) | [5] | (187,923) | [5] | (159,538) | [5]
Earnings from operations | (257,811) |  | (187,923) |  | (159,538) |
Interest income (expense) | 0 |  | 0 |  | 0 |
Total pretax earnings | (257,811) |  | (187,923) |  | (159,538) |
Income tax expense | 0 |  | 0 |  | 0 |
Net earnings | (257,811) |  | (187,923) |  | (159,538) |
Less: Excess of redemption value over carrying value of preferred shares redeemed |  |  |  |  | 0 |
Preferred stock dividends paid |  |  |  |  | 0 |
Earnings available to common shareholders | (257,811) |  | (187,923) |  | (159,538) |
Moving and Storage Operating Segment | Operating Segments [Member] | AMERCO [Member] |  |  |  |  |  |
Revenues: |  |  |  |  |  |
Self-moving equipment rentals | 0 |  | 0 |  | 0 |
Self-storage revenues | 0 |  | 0 |  | 0 |
Self-moving and self-storage products and service sales | 0 |  | 0 |  | 0 |
Property management fees | 0 |  | 0 |  | 0 |
Life insurance premiums | 0 |  | 0 |  | 0 |
Property and casualty insurance premiums | 0 |  | 0 |  | 0 |
Net investment and interest income | 6,205 |  | 5,248 |  | 5,857 |
Other revenue | 260 |  | 81 |  | 228 |
Total revenues | 6,465 |  | 5,329 |  | 6,085 |
Costs and expenses: |  |  |  |  |  |
Operating expenses | 6,636 |  | 13,611 |  | 9,081 |
Commission expenses | 0 |  | 0 |  | 0 |
Cost of sales | 0 |  | 0 |  | 0 |
Benefits and losses | 0 |  | 0 |  | 0 |
Amortization of deferred policy acquisition costs | 0 |  | 0 |  | 0 |
Lease expense | 92 |  | 92 |  | 93 |
Depreciation, net of (gains) losses on disposals | 5 |  | 5 |  | 5 |
Total expenses | 6,733 |  | 13,708 |  | 9,179 |
Earnings (loss) from operations before subsidiaries | (268) |  | (8,379) |  | (3,094) |
Equity in earnings of subsidiaries | 287,803 |  | 212,164 |  | 149,160 |
Earnings from operations | 287,535 |  | 203,785 |  | 146,066 |
Interest income (expense) | 86,916 |  | 91,125 |  | 94,278 |
Total pretax earnings | 374,451 |  | 294,910 |  | 240,344 |
Income tax expense | (32,060) |  | (30,202) |  | (34,649) |
Net earnings | 342,391 |  | 264,708 |  | 205,695 |
Less: Excess of redemption value over carrying value of preferred shares redeemed |  |  |  |  | (5,908) |
Preferred stock dividends paid |  |  |  |  | (3,241) |
Earnings available to common shareholders | 342,391 |  | 264,708 |  | 196,546 |
Moving and Storage Operating Segment | Operating Segments [Member] | Uhaul [Member] |  |  |  |  |  |
Revenues: |  |  |  |  |  |
Self-moving equipment rentals | 1,958,209 |  | 1,769,058 |  | 1,679,963 |
Self-storage revenues | 180,592 |  | 151,512 |  | 133,070 |
Self-moving and self-storage products and service sales | 234,187 |  | 221,117 |  | 213,854 |
Property management fees | 24,493 |  | 24,378 |  | 23,266 |
Life insurance premiums | 0 |  | 0 |  | 0 |
Property and casualty insurance premiums | 0 |  | 0 |  | 0 |
Net investment and interest income | 8,107 |  | 8,462 |  | 20,577 |
Other revenue | 164,450 |  | 102,776 |  | 83,894 |
Total revenues | 2,570,038 |  | 2,277,303 |  | 2,154,624 |
Costs and expenses: |  |  |  |  |  |
Operating expenses | 1,338,635 |  | 1,199,550 |  | 1,121,681 |
Commission expenses | 252,525 |  | 228,124 |  | 212,190 |
Cost of sales | 127,270 |  | 107,216 |  | 116,542 |
Benefits and losses | 0 |  | 0 |  | 0 |
Amortization of deferred policy acquisition costs | 0 |  | 0 |  | 0 |
Lease expense | 100,521 |  | 117,491 |  | 132,286 |
Depreciation, net of (gains) losses on disposals | 242,721 |  | 224,407 |  | 195,469 |
Total expenses | 2,061,672 |  | 1,876,788 |  | 1,778,168 |
Earnings (loss) from operations before subsidiaries | 508,366 |  | 400,515 |  | 376,456 |
Equity in earnings of subsidiaries | 0 |  | 0 |  | 0 |
Earnings from operations | 508,366 |  | 400,515 |  | 376,456 |
Interest income (expense) | (110,270) |  | (124,012) |  | (132,781) |
Total pretax earnings | 398,096 |  | 276,503 |  | 243,675 |
Income tax expense | (144,465) |  | (96,099) |  | (88,096) |
Net earnings | 253,631 |  | 180,404 |  | 155,579 |
Less: Excess of redemption value over carrying value of preferred shares redeemed |  |  |  |  | 0 |
Preferred stock dividends paid |  |  |  |  | 0 |
Earnings available to common shareholders | 253,631 |  | 180,404 |  | 155,579 |
Moving and Storage Operating Segment | Operating Segments [Member] | Real Estate [Member] |  |  |  |  |  |
Revenues: |  |  |  |  |  |
Self-moving equipment rentals | 0 |  | 0 |  | 0 |
Self-storage revenues | 1,202 |  | 1,148 |  | 1,306 |
Self-moving and self-storage products and service sales | 0 |  | 0 |  | 0 |
Property management fees | 0 |  | 0 |  | 0 |
Life insurance premiums | 0 |  | 0 |  | 0 |
Property and casualty insurance premiums | 0 |  | 0 |  | 0 |
Net investment and interest income | 900 |  | 4,912 |  | 698 |
Other revenue | 103,456 |  | 88,626 |  | 80,318 |
Total revenues | 105,558 |  | 94,686 |  | 82,322 |
Costs and expenses: |  |  |  |  |  |
Operating expenses | 12,053 |  | 10,878 |  | 9,468 |
Commission expenses | 0 |  | 0 |  | 0 |
Cost of sales | 0 |  | 0 |  | 0 |
Benefits and losses | 0 |  | 0 |  | 0 |
Amortization of deferred policy acquisition costs | 0 |  | 0 |  | 0 |
Lease expense | 36 |  | 32 |  | 23 |
Depreciation, net of (gains) losses on disposals | 16,886 |  | 13,584 |  | 13,427 |
Total expenses | 28,975 |  | 24,494 |  | 22,918 |
Earnings (loss) from operations before subsidiaries | 76,583 |  | 70,192 |  | 59,404 |
Equity in earnings of subsidiaries | 0 |  | 0 |  | 0 |
Earnings from operations | 76,583 |  | 70,192 |  | 59,404 |
Interest income (expense) | (69,808) |  | (58,103) |  | (52,022) |
Total pretax earnings | 6,775 |  | 12,089 |  | 7,382 |
Income tax expense | (2,595) |  | (4,570) |  | (3,423) |
Net earnings | 4,180 |  | 7,519 |  | 3,959 |
Less: Excess of redemption value over carrying value of preferred shares redeemed |  |  |  |  | 0 |
Preferred stock dividends paid |  |  |  |  | 0 |
Earnings available to common shareholders | $ 4,180 |  | $ 7,519 |  | $ 3,959 |
[1] | Eliminate intercompany premiums
[2] | Eliminate intercompany lease / interest income
[3] | Elimination of preferred stock dividend paid to affiliate
[4] | The earned and written premiums are reported net of intersegment transactions. There were no earned premiums eliminated for the years ended December 31, 2013, 2012 and 2011, respectively.
[5] | Eliminate equity in earnings of subsidiaries
[6] | Balances as of December 31, 2013
[7] | Balances as of December 31, 2012
[8] | Balances for the year ended December 31, 2011
[9] | Balance for the period ended December 31, 2012

X
- Definition This company-specific concept is a combination of two US-GAAP taxonomy concepts. (1) Depreciation: "The amount of expense recognized in the current period that reflects the allocation of the cost of tangible assets over the assets' useful lives. Includes production and non-production related depreciation." (2) Gain (Loss) on Disposition of Assets: "The gains and losses included in earnings resulting from the sale or disposal of tangible assets." + References No definition available. + Details
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- Definition This company-specific concept is a combination of two separate concepts in the US-GAAP taxonomy. (1) Other Real Estate Revenue: "Other real estate revenue not otherwise specified in the taxonomy." (2) Contracts Revenue: "Revenue earned during the period arising from products sold or services provided under the terms of a contract, not elsewhere specified in the taxonomy. May include government contracts, construction contracts, and any other contract related to a particular project or product. + References No definition available. + Details
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- Definition Total costs related to goods produced and sold during the reporting period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 2 -Article 5 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.2(a)) -URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688 + Details
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- Definition Total costs of sales and operating expenses for the period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03) -URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688 + Details
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