| Disclosure Descriptive Information |
| Label: | Loss Contingency Accrual [Roll Forward] |
| Name: | LossContingencyAccrualRollForward |
| Parent Topic: | Contingencies |
| Documentation: | Roll forward (movements) of loss contingency accrual. |
| Commentary: | Seems like this disclosure is missing a text block. |
| Status: | |
| US GAAP XBRL Taxonomy Text Block: | NO TEXT BLOCK |
| Human Readable Examples: | NOT AVAILABLE, NO TEXT BLOCK |
| Machine Readable Examples: | List of machine readable examples (prototype) |
| Business rules (machine readable): | XBRL Definition Relations |
| US GAAP XBRL Taxonomy Network: | http://fasb.org/us-gaap/role/disclosure/CommitmentAndContingencies | XML | HTML |
| Prototype of Disclosure |
| Line | Label | Object Class (Data type) | Period Type | Balance | Report Element Name |
|---|---|---|---|---|---|
| 1 | Loss Contingency [Abstract] | Abstract | us-gaap:LossContingencyAbstract | ||
| 2 | Loss Contingency Accrual, at Carrying Value Beginning of period | Concept (Monetary) | As Of | Credit | us-gaap:LossContingencyAccrualAtCarryingValue |
| 3 | Loss Contingency Accrual, Carrying Value, Provision | Concept (Monetary) | For Period | Credit | us-gaap:LossContingencyAccrualCarryingValueProvision |
| 4 | Loss Contingency Accrual, Carrying Value, Payments | Concept (Monetary) | For Period | Debit | us-gaap:LossContingencyAccrualCarryingValuePayments |
| 5 | Loss Contingency Accrual, at Carrying Value End of period | Concept (Monetary) | As Of | Credit | us-gaap:LossContingencyAccrualAtCarryingValue |
| Business Rules Summary |
| From | Arcrole (predicate) | To |
|---|---|---|
| disclosures:LossContingencyAccrualRollForward | rules-arcroles:disclosure-hasConceptArrangementPattern | fro:RollForward |
| disclosures:LossContingencyAccrualRollForward | rules-arcroles:disclosure-requiresConcept | us-gaap:LossContingencyAccrualAtCarryingValue |
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