Investment In Affiliates , Narrative (Details) - USD ($)		3 Months Ended	12 Months Ended
	Jul. 22, 2016	Jun. 30, 2015	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Schedule of Equity Method Investments [Line Items]
Income from affiliate transactions			$ 500,000	$ 7,500,000	$ 1,200,000
Origen Financial Services [Member]
Schedule of Equity Method Investments [Line Items]
Ownership percentage			22.90%
Investment carrying value			$ 0
Origen Financial [Member]
Schedule of Equity Method Investments [Line Items]
Ownership percentage			19.30%
Investment carrying value			$ 0
Investment owned (in shares)			5,000,000
Equity Method Investment, Net Sales Proceeds	$ 500,000
Equity Method Investee [Member] | Origen Financial [Member]
Schedule of Equity Method Investments [Line Items]
Income from affiliate transactions		$ 7,500,000