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Investments - Investment Income (Expense) Comprised Primarily of Interest and Dividends (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Net Investment Income [Line Items]
Total investment income	$ 1,103	$ 937	$ 3,088	$ 1,515
Less investment expenses	(459)	(555)	(1,514)	(985)
Net investment (expense) income	644	382	1,574	530
Cash and Cash Equivalents [Member]
Net Investment Income [Line Items]
Total investment income	26	135	47	377
Fixed Maturities [Member]
Net Investment Income [Line Items]
Total investment income	884	439	2,394	409
Equity Securities [Member]
Net Investment Income [Line Items]
Total investment income	182	363	636	729
Short-term Investments [Member]
Net Investment Income [Line Items]
Total investment income	$ 11		$ 11

X

- Definition

Amount of expenses related to the generation of investment income.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 944

-SubTopic 225

-Section S99

-Paragraph 1

-Subparagraph (SX 210.7-04.2)

-URI http://asc.fasb.org/extlink&oid=6879464&loc=d3e573970-122913



Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 225

-SubTopic 10

-Section S99

-Paragraph 2

-Subparagraph (SX 210.5-03.9)

-URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688

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X

- Definition

Amount, after investment expense, of income earned from investments in securities and real estate. Includes, but is not limited to, real estate investment, policy loans, dividends, and interest. Excludes realized gain (loss) on investments.

+ References

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

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 16

-Article 12



Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 944

-SubTopic 225

-Section S99

-Paragraph 1

-Subparagraph (SX 210.7-04.2)

-URI http://asc.fasb.org/extlink&oid=6879464&loc=d3e573970-122913



Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 04

-Paragraph 2

-Article 7

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X

- Definition

Amount of income earned from investments in securities. Includes, but is not limited to, dividends, interest, and amortization of premium/discount. Excludes realized gain (loss) on investments.

+ References

No definition available.

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