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