| Disclosure Descriptive Information |
| Label: | Available-for-sale Securities, Debt Maturities, Amortized Cost Basis [Roll Up] |
| Name: | AvailableForsaleSecuritiesDebtMaturitiesAmortizedCostBasisRollUp |
| Parent Topic: | DebtAndEquitySecurities |
| Documentation: | Roll up of details of debt maturities of available-for-sale securities, amortized cost basis. |
| Commentary: | |
| 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/InvestmentsDebtAndEquitySecurities | XML | HTML |
| Prototype of Disclosure |
| Line | Label | Object Class (Data type) | Period Type | Balance | Report Element Name |
|---|---|---|---|---|---|
| 1 | Available For Sale Securities Debt Maturities Amortized Cost [Abstract] | Abstract | us-gaap:AvailableForSaleSecuritiesDebtMaturitiesAmortizedCostAbstract | ||
| 2 | Due within 1 year | Concept (Monetary) | As Of | Debit | us-gaap:AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearAmortizedCost |
| 3 | Due after 1 year but within 5 years | Concept (Monetary) | As Of | Debit | us-gaap:AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsAmortizedCost |
| 4 | Due after 5 years but within 10 years | Concept (Monetary) | As Of | Debit | us-gaap:AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsAmortizedCost |
| 5 | Due after 10 years | Concept (Monetary) | As Of | Debit | us-gaap:AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsAmortizedCost |
| 6 | Total | Concept (Monetary) | As Of | Debit | us-gaap:AvailableForSaleSecuritiesDebtMaturitiesAmortizedCost |
| Business Rules Summary |
| From | Arcrole (predicate) | To |
|---|---|---|
| disclosures:AvailableForsaleSecuritiesDebtMaturitiesAmortizedCostBasisRollUp | rules-arcroles:disclosure-hasConceptArrangementPattern | fro:RollUp |
| disclosures:AvailableForsaleSecuritiesDebtMaturitiesAmortizedCostBasisRollUp | rules-arcroles:disclosure-requiresConcept | us-gaap:AvailableForSaleSecuritiesDebtMaturitiesAmortizedCost |
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