IndexActual amounts on comparable basis [member]
| Name | ActualAmountsOnComparableBasisMember |
|---|---|
| Namespace | http://xbrl.cipc.co.za/taxonomy/grap |
| Prefix | grap |
| Data type | nonnum:domainItemType |
| Period type | duration |
| Substitution Group | xbrli:item |
| Balance | None |
| Nillable | True |
| Abstract | False |
Labels
| Text | Lang | Role | Container role |
|---|---|---|---|
| Actual amounts on comparable basis [member] | en | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
Related Child Concepts
| Name | Relation Type | Role | |
|---|---|---|---|
 | grap:AdjustmentsMember | domain-member | http://xbrl.cipc.co.za/taxonomy/role/dimensions/999.999/DimensionalQualificationForLineItems |
| grap:ApprovedBudgetMember | domain-member | http://xbrl.cipc.co.za/taxonomy/role/dimensions/999.999/DimensionalQualificationForLineItems |
| grap:DifferenceBetweenFinalBudgetAndActualMember | domain-member | http://xbrl.cipc.co.za/taxonomy/role/dimensions/999.999/DimensionalQualificationForLineItems |
| grap:FinalBudgetMember | domain-member | http://xbrl.cipc.co.za/taxonomy/role/dimensions/999.999/DimensionalQualificationForLineItems |
| grap:InsuranceReserveMember | domain-member | http://xbrl.cipc.co.za/taxonomy/role/dimensions/999.999/DimensionalQualificationForLineItems |
Related Parent Concepts
| Name | Relation Type | Role | |
|---|---|---|---|
| grap:ComponentsOfBudgetAndActualAmountsAxis | dimension-default | http://xbrl.cipc.co.za/taxonomy/role/dimensions/999.999/DimensionalQualificationForLineItems |
| grap:ComponentsOfBudgetAndActualAmountsAxis | dimension-domain | http://xbrl.cipc.co.za/taxonomy/role/dimensions/999.999/DimensionalQualificationForLineItems |