Investments - JCP Fund V - Narrative (Details) - USD ($)	3 Months Ended
	Feb. 28, 2017	Feb. 29, 2016	Nov. 30, 2016
Schedule of Equity Method Investments [Line Items]
Total committed equity capitalization	$ 1,200,000,000
Unfunded portion of equity commitment to subsidiary	106,100,000
JCP Fund V [Member]
Schedule of Equity Method Investments [Line Items]
Investment	28,600,000		$ 29,100,000
Losses from investment	700,000	$ 3,000,000
Unfunded portion of equity commitment to subsidiary	$ 11,100,000		11,500,000
Percent of financial information presented	100.00%
Ownership percentage	35.60%
Maximum [Member] | JCP Fund V [Member]
Schedule of Equity Method Investments [Line Items]
Total committed equity capitalization	$ 85,000,000.0		$ 85,000,000.0