| Component: (Network and Table) | |
|---|---|
| Network | 191 - Disclosure - Commitments and Contingencies - Schedule of Minimum Rental Payments on Operating Leases (Detail) (http://www.aepinc.com/taxonomy/role/DisclosureCommitmentsAndContingenciesScheduleOfMinimumRentalPaymentsOnOperatingLeases) |
| Table | (Implied) |
| Reporting Entity [Axis] | 0000785787 (http://www.sec.gov/CIK) |
| Commitments and Contingencies Disclosure [Abstract] | Period [Axis] |
|---|---|
2016-10-31 | |
Commitments and Contingencies Disclosure [Abstract] | |
Operating lease | |
2017 | |
2018 | |
2019 | |
2020 | |
2021 | |
Thereafter | |
Total minimum lease payments |