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Investments in Marketable Securities and Unconsolidated Entities - Narrative (Details) - USD ($) | 3 Months Ended | 12 Months Ended
--- | --- | ---
Jun. 30, 2015 | Mar. 31, 2015 | Sep. 30, 2014
Equity Method Investments and Joint Ventures [Abstract] |  |  |
Gain (Loss) on Sale of Investments |  | $ (1,800,000) |
Schedule of Equity Method Investments [Line Items] |  |  |
Equity Method Investments, Impairment Of Unconsolidated Entity Investments, Continuing Operations | $ 0 |  |
Inspirada |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |
Settlement of unconsolidated entity debt obligation |  |  | $ 1,000,000
Joint Venture Obligation | 3,400,000 |  |
Financial Guarantee |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |
Guarantor Obligations, Current Carrying Value | $ 0 |  | $ 0

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- Definition The net realized gain (loss) on investments sold during the period, not including gains (losses) on securities separately or otherwise categorized as trading, available-for-sale, or held-to-maturity, which, for cash flow reporting, is a component of proceeds from investing activities. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3602-108585 + Details
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- Definition The current carrying amount of the liability for the freestanding or embedded guarantor's obligations under the guarantee or each group of similar guarantees. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 460 -SubTopic 10 -Section 50 -Paragraph 4 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=6851643&loc=d3e12069-110248 + Details
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