Investments - JCP Funds - Narrative (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	May 31, 2016	May 31, 2015	May 31, 2016	May 31, 2015	Nov. 30, 2015
Schedule of Equity Method Investments [Line Items]
Total committed equity capitalization	$ 1,200.0		$ 1,200.0
Unfunded portion of equity commitment to subsidiary	102.6		102.6
JCP Funds [Member]
Schedule of Equity Method Investments [Line Items]
Investment	22.8		22.8		$ 29.7
Gain (loss) from investment	(4.2)	$ 0.6	(7.2)	$ (22.9)
Total committed equity capitalization	85.0		85.0		$ 85.0
Unfunded portion of equity commitment to subsidiary	$ 11.5		$ 11.5
Percent of financial information presented			100.00%
Ownership percentage	35.20%		35.20%