Other Commitments and Contingencies - Future Minimum Sublease Rentals (Detail) $ in Thousands	Feb. 29, 2016 USD ($)
Other Commitments [Line Items]
Operating Leases, Future Minimum Payments Receivable, Current	$ 319
Operating Leases, Future Minimum Payments Receivable, in Two Years	258
Operating Leases, Future Minimum Payments Receivable, in Three Years	337
Operating Leases, Future Minimum Payments Receivable, in Four Years	317
Operating Leases, Future Minimum Payments Receivable, in Five Years	359
Operating Leases, Future Minimum Payments Receivable	$ 1,590