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Related Party Transactions (Related Party Revenue) (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Sep. 30, 2016 | Sep. 30, 2015 | Sep. 30, 2016 | Sep. 30, 2015
Related party transactions: |  |  |  |
Management fees revenue | $ 6,712 | $ 6,320 | $ 13,316 | $ 12,431
Revenue from related parties | 7,944 | 7,569 | 15,771 | 16,045
Sac Holdings [Member] |  |  |  |
Related party transactions: |  |  |  |
Interest income revenue | 1,232 | 1,249 | 2,455 | 2,488
Management fees revenue | 5,189 | 4,883 | 10,308 | 9,697
Private Mini [Member] |  |  |  |
Related party transactions: |  |  |  |
Interest income revenue |  |  |  | 1,126
Management fees revenue | 931 | 878 | 1,832 | 1,624
Mercury [Member] |  |  |  |
Related party transactions: |  |  |  |
Management fees revenue | $ 592 | $ 559 | $ 1,176 | $ 1,110

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- Definition Amount of revenue, fees and commissions earned from transactions between (a) a parent company and its subsidiaries; (b) subsidiaries of a common parent; (c) an entity and trusts for the benefit of employees, for example, but not limited to, pension and profit-sharing trusts that are managed by or under the trusteeship of the entity's management; (d) an entity and its principal, owners, management, or members of their immediate families; and (e) affiliates. + 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 210.5-03.1(e)) -URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Related Parties -URI http://asc.fasb.org/extlink&oid=16382449 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 946 -SubTopic 225 -Section S99 -Paragraph 1 -Subparagraph (SX 210.6-07.1(c)) -URI http://asc.fasb.org/extlink&oid=6488393&loc=d3e606610-122999 + Details
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