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Consolidating financial information by industry segment (Statements of Operations) (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Dec. 31, 2015 | Dec. 31, 2014 | Dec. 31, 2015 | Dec. 31, 2014
Revenues: |  |  |  |  |  |  |  |  |
Self-moving equipment rentals |  | $ 517,403 |  | $ 487,415 |  | $ 1,844,908 |  | $ 1,716,424 |
Self-storage revenues |  | 63,164 |  | 53,503 |  | 182,415 |  | 155,623 |
Self-moving and self-storage products and service sales |  | 50,038 |  | 49,081 |  | 197,999 |  | 191,603 |
Property management fees |  | 8,170 |  | 7,497 |  | 20,601 |  | 18,970 |
Life insurance premiums |  | 40,657 |  | 39,026 |  | 121,438 |  | 115,997 |
Property and casualty insurance premiums |  | 14,105 |  | 13,584 |  | 38,033 |  | 35,665 |
Net investment and interest income |  | 19,026 |  | 20,752 |  | 63,149 |  | 63,654 |
Other revenue |  | 32,188 |  | 35,497 |  | 123,916 |  | 133,865 |
Total revenues |  | 744,751 |  | 706,355 |  | 2,592,459 |  | 2,431,801 |
Costs and expenses: |  |  |  |  |  |  |  |  |
Operating expenses |  | 356,156 |  | 338,692 |  | 1,125,607 |  | 1,085,961 |
Commission expenses |  | 58,347 |  | 58,439 |  | 212,204 |  | 200,939 |
Cost of sales |  | 29,460 |  | 30,751 |  | 110,596 |  | 112,215 |
Benefits and losses |  | 41,574 |  | 40,084 |  | 128,393 |  | 120,426 |
Amortization of deferred policy acquisition costs |  | 5,138 |  | 4,722 |  | 15,559 |  | 13,196 |
Lease expense |  | 10,461 |  | 18,705 |  | 40,249 |  | 60,950 |
Depreciation, net of (gains) losses on disposals |  | 85,713 |  | 81,810 |  | 199,773 |  | 209,927 |
Total costs and expenses |  | 586,849 |  | 573,203 |  | 1,832,381 |  | 1,803,614 |
Earnings (loss) from operations before equity in earnings of subsidiaries |  | 157,902 |  | $ 133,152 |  | 760,078 |  | 628,187 |
Equity in earnings of subsidiaries |  |  |  |  |  |  |  |  |
Earnings from operations |  | 157,902 |  | $ 133,152 |  | 760,078 |  | 628,187 |
Interest expense |  | (25,407) |  | (25,719) |  | $ (71,480) |  | (74,744) |
Fees and amortization on early extinguishment of debt |  |  |  |  |  |  |  | (4,081) |
Pretax earnings |  | 132,495 |  | 107,433 |  | $ 688,598 |  | 549,362 |
Income tax expense |  | (50,726) |  | (40,893) |  | (252,165) |  | (202,101) |
Earnings available to common shareholders |  | 81,769 |  | 66,540 |  | 436,433 |  | 347,261 |
Operating Segments [Member] | Moving and Storage Consolidations [Member] |  |  |  |  |  |  |  |  |
Revenues: |  |  |  |  |  |  |  |  |
Self-moving equipment rentals |  | 518,438 |  | 488,505 |  | 1,847,661 |  | 1,719,200 |
Self-storage revenues |  | 63,164 |  | 53,503 |  | 182,415 |  | 155,623 |
Self-moving and self-storage products and service sales |  | 50,038 |  | 49,081 |  | 197,999 |  | 191,603 |
Property management fees |  | $ 8,170 |  | $ 7,497 |  | $ 20,601 |  | $ 18,970 |
Life insurance premiums |  |  |  |  |  |  |  |  |
Property and casualty insurance premiums |  |  |  |  |  |  |  |  |
Net investment and interest income |  | $ 1,976 |  | $ 2,838 |  | $ 6,638 |  | $ 10,785 |
Other revenue |  | 30,966 |  | 34,409 |  | 120,572 |  | 130,718 |
Total revenues |  | 672,752 |  | 635,833 |  | 2,375,886 |  | 2,226,899 |
Costs and expenses: |  |  |  |  |  |  |  |  |
Operating expenses |  | 344,654 |  | 328,187 |  | 1,091,169 |  | 1,053,584 |
Commission expenses |  | 58,347 |  | 58,439 |  | 212,204 |  | 200,939 |
Cost of sales |  | $ 29,460 |  | $ 30,751 |  | $ 110,596 |  | $ 112,215 |
Benefits and losses |  |  |  |  |  |  |  |  |
Amortization of deferred policy acquisition costs |  |  |  |  |  |  |  |  |
Lease expense |  | $ 10,508 |  | $ 18,755 |  | $ 40,389 |  | $ 61,090 |
Depreciation, net of (gains) losses on disposals |  | 85,713 |  | 81,810 |  | 199,773 |  | 209,927 |
Total costs and expenses |  | 528,682 |  | 517,942 |  | 1,654,131 |  | 1,637,755 |
Earnings (loss) from operations before equity in earnings of subsidiaries |  | 144,070 |  | 117,891 |  | 721,755 |  | 589,144 |
Equity in earnings of subsidiaries |  | 9,090 |  | 10,088 |  | 25,219 |  | 25,763 |
Earnings from operations |  | 153,160 |  | 127,979 |  | 746,974 |  | 614,907 |
Interest expense |  | (25,564) |  | (25,875) |  | (71,957) |  | (75,218) |
Fees and amortization on early extinguishment of debt |  |  |  |  |  |  |  | (4,081) |
Pretax earnings |  | 127,596 |  | 102,104 |  | 675,017 |  | 535,608 |
Income tax expense |  | (45,827) |  | (35,564) |  | (238,584) |  | (188,347) |
Earnings available to common shareholders |  | $ 81,769 |  | $ 66,540 |  | $ 436,433 |  | $ 347,261 |
Operating Segments [Member] | Property and Casualty Insurance [Member] |  |  |  |  |  |  |  |  |
Revenues: |  |  |  |  |  |  |  |  |
Self-moving equipment rentals |  |  | [1] |  | [2] |  | [3] |  | [4]
Self-storage revenues |  |  | [1] |  | [2] |  | [3] |  | [4]
Self-moving and self-storage products and service sales |  |  | [1] |  | [2] |  | [3] |  | [4]
Property management fees |  |  | [1] |  | [2] |  | [3] |  | [4]
Life insurance premiums |  |  | [1] |  | [2] |  | [3] |  | [4]
Property and casualty insurance premiums |  | $ 14,105 | [1] | $ 13,584 | [2] | $ 38,033 | [3] | $ 35,665 | [4]
Net investment and interest income |  | $ 3,252 | [1] | $ 2,961 | [2] | $ 10,839 | [3] | $ 9,823 | [4]
Other revenue |  |  | [1] |  | [2] |  | [3] |  | [4]
Total revenues |  | $ 17,357 | [1] | $ 16,545 | [2] | $ 48,872 | [3] | $ 45,488 | [4]
Costs and expenses: |  |  |  |  |  |  |  |  |
Operating expenses |  | $ 7,048 | [1] | $ 6,123 | [2] | $ 20,476 | [3] | $ 18,635 | [4]
Commission expenses |  |  | [1] |  | [2] |  | [3] |  | [4]
Cost of sales |  |  | [1] |  | [2] |  | [3] |  | [4]
Benefits and losses |  | $ 4,038 | [1] | $ 3,481 | [2] | $ 9,582 | [3] | $ 8,918 | [4]
Amortization of deferred policy acquisition costs |  |  | [1] |  | [2] |  | [3] |  | [4]
Lease expense |  |  | [1] |  | [2] |  | [3] |  | [4]
Depreciation, net of (gains) losses on disposals |  |  | [1] |  | [2] |  | [3] |  | [4]
Total costs and expenses |  | $ 11,086 | [1] | $ 9,604 | [2] | $ 30,058 | [3] | $ 27,553 | [4]
Earnings (loss) from operations before equity in earnings of subsidiaries |  | $ 6,271 | [1] | $ 6,941 | [2] | $ 18,814 | [3] | $ 17,935 | [4]
Equity in earnings of subsidiaries |  |  | [1] |  | [2] |  | [3] |  | [4]
Earnings from operations |  | $ 6,271 | [1] | $ 6,941 | [2] | $ 18,814 | [3] | $ 17,935 | [4]
Interest expense |  |  | [1] |  | [2] |  | [3] |  | [4]
Fees and amortization on early extinguishment of debt | [4] |  |  |  |  |  |  |  |
Pretax earnings |  | $ 6,271 | [1] | $ 6,941 | [2] | $ 18,814 | [3] | $ 17,935 | [4]
Income tax expense |  | (2,195) | [1] | (2,428) | [2] | (6,585) | [3] | (6,277) | [4]
Earnings available to common shareholders |  | $ 4,076 | [1] | $ 4,513 | [2] | $ 12,229 | [5] | $ 11,658 | [6]
Operating Segments [Member] | Life Insurance [Member] |  |  |  |  |  |  |  |  |
Revenues: |  |  |  |  |  |  |  |  |
Self-moving equipment rentals |  |  | [1] |  | [2] |  | [3] |  | [4]
Self-storage revenues |  |  | [1] |  | [2] |  | [3] |  | [4]
Self-moving and self-storage products and service sales |  |  | [1] |  | [2] |  | [3] |  | [4]
Property management fees |  |  | [1] |  | [2] |  | [3] |  | [4]
Life insurance premiums |  | $ 40,657 | [1] | $ 39,026 | [2] | $ 121,438 | [3] | $ 115,997 | [4]
Property and casualty insurance premiums |  |  | [1] |  | [2] |  | [3] |  | [4]
Net investment and interest income |  | $ 13,993 | [1] | $ 15,149 | [2] | $ 46,261 | [3] | $ 43,632 | [4]
Other revenue |  | 1,498 | [1] | 1,202 | [2] | 3,705 | [3] | 3,491 | [4]
Total revenues |  | 56,148 | [1] | 55,377 | [2] | 171,404 | [3] | 163,120 | [4]
Costs and expenses: |  |  |  |  |  |  |  |  |
Operating expenses |  | $ 5,756 | [1] | $ 5,576 | [2] | $ 17,048 | [3] | $ 16,834 | [4]
Commission expenses |  |  | [1] |  | [2] |  | [3] |  | [4]
Cost of sales |  |  | [1] |  | [2] |  | [3] |  | [4]
Benefits and losses |  | $ 37,536 | [1] | $ 36,603 | [2] | $ 118,811 | [3] | $ 111,508 | [4]
Amortization of deferred policy acquisition costs |  | $ 5,138 | [1] | $ 4,722 | [2] | $ 15,559 | [3] | $ 13,196 | [4]
Lease expense |  |  | [1] |  | [2] |  | [3] |  | [4]
Depreciation, net of (gains) losses on disposals |  |  | [1] |  | [2] |  | [3] |  | [4]
Total costs and expenses |  | $ 48,430 | [1] | $ 46,901 | [2] | $ 151,418 | [3] | $ 141,538 | [4]
Earnings (loss) from operations before equity in earnings of subsidiaries |  | $ 7,718 | [1] | $ 8,476 | [2] | $ 19,986 | [3] | $ 21,582 | [4]
Equity in earnings of subsidiaries |  |  | [1] |  | [2] |  | [3] |  | [4]
Earnings from operations |  | $ 7,718 | [1] | $ 8,476 | [2] | $ 19,986 | [3] | $ 21,582 | [4]
Interest expense |  |  | [1] |  | [2] |  | [3] |  | [4]
Fees and amortization on early extinguishment of debt | [4] |  |  |  |  |  |  |  |
Pretax earnings |  | $ 7,718 | [1] | $ 8,476 | [2] | $ 19,986 | [3] | $ 21,582 | [4]
Income tax expense |  | (2,704) | [1] | (2,901) | [2] | (6,996) | [3] | (7,477) | [4]
Earnings available to common shareholders |  | 5,014 | [1] | 5,575 | [2] | 12,990 | [5] | 14,105 | [6]
Consolidation, Eliminations [Member] |  |  |  |  |  |  |  |  |
Revenues: |  |  |  |  |  |  |  |  |
Self-moving equipment rentals | [7] | $ (1,035) |  | $ (1,090) |  | $ (2,753) |  | $ (2,776) |
Self-storage revenues |  |  |  |  |  |  |  |  |
Self-moving and self-storage products and service sales |  |  |  |  |  |  |  |  |
Property management fees |  |  |  |  |  |  |  |  |
Life insurance premiums |  |  |  |  |  |  |  |  |
Property and casualty insurance premiums |  |  |  |  |  |  |  |  |
Net investment and interest income | [8] | $ (195) |  | $ (196) |  | $ (589) |  | $ (586) |
Other revenue | [8] | (276) |  | (114) |  | (361) |  | (344) |
Total revenues |  | (1,506) |  | (1,400) |  | (3,703) |  | (3,706) |
Costs and expenses: |  |  |  |  |  |  |  |  |
Operating expenses | [7],[8] | $ (1,302) |  | $ (1,194) |  | $ (3,086) |  | $ (3,092) |
Commission expenses |  |  |  |  |  |  |  |  |
Cost of sales |  |  |  |  |  |  |  |  |
Benefits and losses |  |  |  |  |  |  |  |  |
Amortization of deferred policy acquisition costs |  |  |  |  |  |  |  |  |
Lease expense | [8] | $ (47) |  | $ (50) |  | $ (140) |  | $ (140) |
Depreciation, net of (gains) losses on disposals |  |  |  |  |  |  |  |  |
Total costs and expenses |  | $ (1,349) |  | $ (1,244) |  | $ (3,226) |  | $ (3,232) |
Earnings (loss) from operations before equity in earnings of subsidiaries |  | (157) |  | (156) |  | (477) |  | (474) |
Equity in earnings of subsidiaries | [9] | (9,090) |  | (10,088) |  | (25,219) |  | (25,763) |
Earnings from operations |  | (9,247) |  | (10,244) |  | (25,696) |  | (26,237) |
Interest expense | [8] | 157 |  | 156 |  | 477 |  | $ 474 |
Fees and amortization on early extinguishment of debt |  |  |  |  |  |  |  |  |
Pretax earnings |  | $ (9,090) |  | $ (10,088) |  | $ (25,219) |  | $ (25,763) |
Income tax expense |  |  |  |  |  |  |  |  |
Earnings available to common shareholders |  | $ (9,090) |  | $ (10,088) |  | $ (25,219) |  | $ (25,763) |
[1] | Balances for the quarter ended September 30, 2015
[2] | Balances for the quarter ended September 30, 2014
[3] | Balances for the nine months ended September 30, 2015
[4] | Balances for the nine months ended September 30, 2014
[5] | Balance for the period ended September 30, 2015
[6] | Balance for the period ended September 30, 2014
[7] | Eliminate intercompany premiums
[8] | Eliminate intercompany lease / interest income
[9] | Eliminate equity in earnings of subsidiaries

X
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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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