Alternative investments as a percentage of overall invested assets.

No definition available.

Amortized cost of portfolio rated below investment grade.

No definition available.

This item represents the change in gross unrealized holding gain or loss on available-for-sale securities that has been included in accumulated other comprehensive income, a separate component of shareholders' equity, during the period.

No definition available.

Percentage of the fair value of portfolio that was rated investment grade as of balance sheet date.

No definition available.

This item represents the percentage of the fair value of securities obtained as collateral under reverse repurchase agreements

No definition available.

Fair value of portfolio rated below investment grade.

No definition available.

This item represents total investment commitments as of the balance sheet date for fixed maturity available-for-sale securities, limited partnerships, real estate and mortgage loans on real estate.

No definition available.

Investment Commitments, Asset-Backed Variable Interest Entities

No definition available.

This item represents investment commitments as of the balance sheet date for limited partnerships.

No definition available.

This item represents investment commitments as of the balance sheet date for private placements.

No definition available.

This item represents investment commitments as of the balance sheet date for mortgage loans.

No definition available.

Investments [Line Items]

No definition available.

Number of partnerships represented in alternative investment portfolio.

No definition available.

For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 280
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
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Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 275
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Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef
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Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Topic 275
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Reference 5: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 275
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Reference 6: http://www.xbrl.org/2009/role/commonPracticeRef
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Reference 7: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 275
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Fair value of investment subject to concentration of credit or market risk or both.

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 825
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
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Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 825
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Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 825
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Reference 4: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 825
-SubTopic 10
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Fair value of collateral permitted, by contact or custom, to be sold or re-pledged.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 860
-SubTopic 30
-Section 50
-Paragraph 1A
-Subparagraph (c)(1)
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-URI https://asc.fasb.org/1943274/2147481420/860-30-50-1A

Fair value of the collateral, or portion thereof, that has been re-pledged, delivered, or otherwise used.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 860
-SubTopic 30
-Name Accounting Standards Codification
-Section 50
-Paragraph 1A
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-URI https://asc.fasb.org/1943274/2147481420/860-30-50-1A

Amortized cost of financing receivable modified during period for debtor experiencing financial difficulty.

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Topic 310
-SubTopic 10
-Name Accounting Standards Codification
-Section 55
-Paragraph 12A
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-URI https://asc.fasb.org/1943274/2147481933/310-10-55-12A

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-Topic 310
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Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Topic 310
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