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Investments in Marketable Securities and Unconsolidated Entities - Outstanding Borrowings of Unconsolidated Entities (Details) - USD ($) $ in Thousands | Mar. 31, 2016 | Sep. 30, 2015
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Schedule of Equity Method Investments [Line Items] |  |
Investments in unconsolidated entities | $ 9,015 | $ 13,734
Unconsolidated Entities |  |
Schedule of Equity Method Investments [Line Items] |  |
Investments in unconsolidated entities | 9,015 | 13,734
Total equity of unconsolidated entities | 31,763 | 52,118
Total outstanding borrowings of unconsolidated entities | $ 12,623 | $ 12,206

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- Definition Total investments in (A) an entity in which the entity has significant influence, but does not have control, (B) subsidiaries that are not required to be consolidated and are accounted for using the equity and or cost method, and (C) an entity in which the reporting entity shares control of the entity with another party or group. Includes long-term advances receivable from a party that is affiliated with the reporting entity by means of direct or indirect ownership. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.12) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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