Number of External Reinsurers Rated A- or Higher

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- Definition

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.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 275
-SubTopic 10
-Section 50
-Paragraph 18
-URI http://asc.fasb.org/extlink&oid=64851502&loc=d3e6351-108592

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
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-URI http://asc.fasb.org/extlink&oid=73719730&loc=d3e13531-108611

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 275
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-Section 50
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-Publisher FASB
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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

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- Definition

The increase (decrease) during the reporting period in the amount of benefits the ceding insurer expects to recover on insurance policies ceded to other insurance entities as of the balance sheet date for all guaranteed benefit types.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3602-108585

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- Definition

Amount, after valuation allowance, recoverable under reinsurance contracts including premium paid under reinsurance contracts. Examples include, but are not limited to, settled and unsettled claims, incurred but not reported losses, loss adjustment expense, premium paid, policy benefits and policy reserves.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 20
-Section 50
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=6480758&loc=d3e6824-158387

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-Publisher FASB
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-Publisher FASB
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-Topic 944
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-Section S99
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-Subparagraph (SX 210.7-03.(a),6)
-URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910

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Reinsurance Balances Recoverable - Additional Information (Detail) $ in Thousands	3 Months Ended		12 Months Ended
	Mar. 31, 2016 USD ($) reinsurer	Mar. 31, 2015 USD ($)	Dec. 31, 2015 USD ($) reinsurer
Effects of Reinsurance [Line Items]
Reinsurance balances recoverable	$ 1,402,216		$ 1,474,004
Increase (decrease) in reinsurance recoverable	(72,596)	$ (36,691)
Non-Life Run-Off
Effects of Reinsurance [Line Items]
Increase (decrease) in reinsurance recoverable	$ (71,800)
Reinsurer Concentration Risk
Effects of Reinsurance [Line Items]
Number of external reinsurers rated A- or higher \| reinsurer	7		7
Reinsurer Concentration Risk \| Three Non-Rated Reinsurers
Effects of Reinsurance [Line Items]
Reinsurance balances recoverable	$ 316,300
Reinsurer Concentration Risk \| One Non-Rated Reinsurer
Effects of Reinsurance [Line Items]
Reinsurance balances recoverable			$ 337,600
Reinsurer Concentration Risk \| One Reinsurer Accounting for More than 10% of Total Reinsurance Balances Receivable
Effects of Reinsurance [Line Items]
Reinsurance balances recoverable	164,500
Reinsurer Concentration Risk \| Two Reinsurers Accounting for More than 10% of Total Reinsurance Balances Receivable
Effects of Reinsurance [Line Items]
Reinsurance balances recoverable			165,600
Reinsurance Recoverables \| Reinsurer Concentration Risk
Effects of Reinsurance [Line Items]
Reinsurance balances recoverable	$ 1,402,216		$ 1,474,004
Reinsurance recoverable major reinsurer (percent)	100.00%		100.00%
Reinsurance Recoverables \| Reinsurer Concentration Risk \| One Reinsurer Accounting for More than 10% of Total Reinsurance Balances Receivable
Effects of Reinsurance [Line Items]
Reinsurance recoverable major reinsurer (percent)	10.00%