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Related Party Costs and Expenses (Details) (USD $) In Thousands, unless otherwise specified | 3 Months Ended | 6 Months Ended
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Sep. 30, 2014 | Sep. 30, 2013 | Sep. 30, 2014 | Sep. 30, 2013
Related party cost and expense: |  |  |  |
Related party costs and expenses | $ 16,369 | $ 15,955 | $ 31,370 | $ 29,925
Sac Holdings [Member] |  |  |  |
Related party cost and expense: |  |  |  |
U-Haul lease expenses | 655 | 655 | 1,310 | 1,310
U-Haul commission expenses | 14,742 | 14,407 | 28,226 | 26,927
Private Mini [Member] |  |  |  |
Related party cost and expense: |  |  |  |
U-Haul commission expenses | $ 972 | $ 893 | $ 1,834 | $ 1,688

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- Definition Rental expense for the reporting period incurred under operating leases, including minimum and any contingent rent expense, net of related sublease income. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6453985&loc=d3e41499-112717 + Details
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- Definition The sum of expenses not otherwise specified in the taxonomy for managing and administering the affairs of an entity, including affiliates of the reporting entity, which are not directly or indirectly associated with the manufacture, sale or creation of a product or product line. + 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 210.5-03.4) -URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688 + Details
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- Definition Expenses recognized resulting from transactions (excluding transactions that are eliminated in consolidated or combined financial statements) with related party. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 850 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=6457730&loc=d3e39549-107864 + Details
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