Commitments and Contingencies (Details)	Nov. 30, 2015 Lawsuit
Loss Contingencies [Line Items]
Number of lawsuits filed	10
Delaware Court of Chancery [Member]
Loss Contingencies [Line Items]
Number of lawsuits filed	8
Pennsylvania Court of Common Pleas of Cumberland County [Member]
Loss Contingencies [Line Items]
Number of lawsuits filed	1
Middle District of Pennsylvania [Member]
Loss Contingencies [Line Items]
Number of lawsuits filed	1