Investments - Summary of Selected Financial Information for JCP Fund V (Details) - JCP Fund V [Member] - USD ($) $ in Thousands	3 Months Ended						6 Months Ended
	May 31, 2017	Mar. 31, 2017	Dec. 31, 2016	May 31, 2016	Mar. 31, 2016	Dec. 31, 2015	May 31, 2017	May 31, 2016
Schedule of Equity Method Investments [Line Items]
Net losses from our investments in JCP Fund V	$ (7,200)			$ (4,200)			$ (7,900)	$ (7,200)
Net decrease in net assets resulting from operations		$ (19,552)	$ (2,294)		$ (11,806)	$ (7,886)