| Name | StatementGeographicalAxis |
|---|---|
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| Prefix | srt |
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| Period type | duration |
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| Balance | None |
| Nillable | True |
| Abstract | True |
| Text | Lang | Role | Container role |
|---|---|---|---|
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| Name | Value | Role |
|---|---|---|
| SourceName | Long-duration Insurance | http://fasb.org/srt/role/changeNote/changeNote |
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| ChangeDate | 2017-08 | http://fasb.org/srt/role/changeNote/changeNote |
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| Name | Accounting Standards Codification | http://www.xbrl.org/2003/role/disclosureRef |
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| Name | Relation Type | Role | |
|---|---|---|---|
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srt:SegmentGeographicalDomain | dimension-default | http://fasb.org/us-gaap/role/disclosure/RevenueFromContractWithCustomerTemp01DisaggregationOfRevenueTable | |
srt:SegmentGeographicalDomain | dimension-domain | http://fasb.org/us-gaap/role/disclosure/RevenueFromContractWithCustomerTemp01DisaggregationOfRevenueTable |
| Name | Relation Type | Role | |
|---|---|---|---|
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