Other Than Temporary Impairment Non Credit Losses Portion Net Unrealized Losses Gains Related To Securities Net of Tax

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- Definition

Percentage of fair value under carrying value.

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- Definition

Weighted Average Expected Maturity Of Securities

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- Definition

Amount of accumulated unrealized loss on investments in debt and equity securities classified as available-for-sale in a continuous loss position.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

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- Definition

Number of investment positions in available-for-sale investments in a continuous unrealized loss position for which an other-than-temporary impairment (OTTI) has not been recognized in the income statement.

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- Definition

The amount by which the fair value of an investment is less than the amortized cost basis or carrying amount of that investment at the balance sheet date and the decline in fair value is deemed to be other than temporary, before considering whether or not such amount is recognized in earnings or other comprehensive income.

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- Definition

Percent of net assets at close of period. For schedules of investments that are categorized, each category has a percent of net assets for the aggregated value of the Investments in the category.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 12C

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-Article 12

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-Name Regulation S-X (SX)

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Investments - Additional Information (Detail) (USD $)	3 Months Ended		12 Months Ended
Investments - Additional Information (Detail) (USD $)	Mar. 31, 2015	Mar. 31, 2014	Dec. 31, 2014
Schedule of Investments [Line Items]
Non-credit OTTI on fixed maturities in an unrealized gain position	$ 700,000		$ 700,000
Gross Unrealized Loss	12,310,000		11,651,000
OTTI losses	0us-gaap_ImpairmentOfInvestments	0us-gaap_ImpairmentOfInvestments
Equity Securities
Schedule of Investments [Line Items]
Number of unrealized loss position	6		15
Gross Unrealized Loss	1,037,000		1,304,000
Equity Securities \| Maximum
Schedule of Investments [Line Items]
Percentage of fair value under carrying value	80.00%
Fixed maturities
Schedule of Investments [Line Items]
Number of unrealized loss position	147		259
Gross Unrealized Loss	11,273,000		10,347,000
Mortgage-backed and asset-backed securities
Schedule of Investments [Line Items]
Securities, effective maturities	4 years 6 months
Mortgage-backed and asset-backed securities \| Fixed maturities
Schedule of Investments [Line Items]
Gross Unrealized Loss	1,288,000		2,198,000
Non-government-backed securities
Schedule of Investments [Line Items]
Gross Unrealized Loss	$ 400,000		$ 500,000
Non-government-backed securities \| Maximum
Schedule of Investments [Line Items]
Percentage of investment	5.00%		5.00%