| Explanation of details of investment exceeding either five per cent of net assets available for benefits or five per cent of any class or type of security | en | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| The explanation of the details of a single investment exceeding either 5% of the assets of a retirement benefit plan less its liabilities other than the actuarial present value of promised retirement benefits, or 5% of any class or type of security. | en | http://www.xbrl.org/2003/role/documentation | http://www.xbrl.org/2003/role/link |
| Explicación de los detalles de inversiones que exceden del cinco por ciento de los activos netos disponibles para beneficios o del cinco por ciento de cualquier clase o tipo de garantía | es | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |