Fair Value of Financial Instruments (Details 1) (USD $) In Thousands, unless otherwise specified	3 Months Ended
Mar. 31, 2013	Mar. 31, 2012
Financial Assets
Beginning balance	$ 131,509	$ 93,173
Transfers into Level 3	16,044	17,337
Transfers out of Level 3	(33,678)	(5,247)
Total gains or losses
Net realized gains (losses) included in net income
Net unrealized gains (losses) included in other comprehensive income	(1,048)	(1,623)
Purchases
Issuances
Sales
Settlements
Paydowns, maturities and distributions	(8,731)	(270)
Ending balance	104,096	103,370
Municipal bonds [Member]
Financial Assets
Beginning balance	12,275
Transfers into Level 3	2,907
Total gains or losses
Net realized gains (losses) included in net income
Net unrealized gains (losses) included in other comprehensive income	(36)
Purchases
Issuances
Sales
Settlements
Ending balance	15,146
Corporate bonds [Member]
Financial Assets
Beginning balance	85,722	88,256
Transfers into Level 3	4,671	8,833
Transfers out of Level 3	(33,678)	(5,247)
Total gains or losses
Net realized gains (losses) included in net income
Net unrealized gains (losses) included in other comprehensive income	(885)	(1,779)
Purchases
Issuances
Sales
Settlements
Paydowns, maturities and distributions	(303)	(143)
Ending balance	55,527	89,920
Other mortgage-backed securities [Member]
Financial Assets
Beginning balance	33,172	4,532
Transfers into Level 3	8,466	8,504
Total gains or losses
Net realized gains (losses) included in net income
Net unrealized gains (losses) included in other comprehensive income	(127)	156
Purchases
Issuances
Sales
Settlements
Paydowns, maturities and distributions	(8,428)	(127)
Ending balance	33,083	13,065
Total Fixed Maturities [Member]
Financial Assets
Beginning balance	131,169	92,788
Transfers into Level 3	16,044	17,337
Transfers out of Level 3	(33,678)	(5,247)
Total gains or losses
Net realized gains (losses) included in net income
Net unrealized gains (losses) included in other comprehensive income	(1,048)	(1,623)
Purchases
Issuances
Sales
Settlements
Paydowns, maturities and distributions	(8,731)	(270)
Ending balance	103,756	102,985
Equity securities [Member]
Financial Assets
Beginning balance	340	385
Total gains or losses
Net realized gains (losses) included in net income
Purchases
Issuances
Sales
Settlements
Ending balance	$ 340	$ 385

Fair value measurement with unobservable inputs reconciliation recurring basis asset paydowns and maturities.

No definition available.

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- Definition

Amount of gain (loss) recognized in earnings, arising from assets measured at fair value on a recurring basis using unobservable inputs (level 3).

+ References

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- Definition

Amount of gain (loss) recognized in other comprehensive income, arising from assets measured at fair value on a recurring basis using unobservable inputs (level 3).

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- Definition

Issues that have taken place during the period in relation to assets measured at fair value and categorized within Level 3 of the fair value hierarchy.

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- Definition

Purchases that have taken place during the period in relation to assets measured at fair value and categorized within Level 3 of the fair value hierarchy.

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- Definition

Sales that have taken place during the period in relation to assets measured at fair value and categorized within Level 3 of the fair value hierarchy.

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Settlements that have taken place during the period in relation to assets measured at fair value and categorized within Level 3 of the fair value hierarchy.

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- Definition

Transfers into assets measured at fair value and categorized within Level 3 of the fair value hierarchy that have taken place during the period.

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- Definition

Transfers out of assets measured at fair value and categorized within Level 3 of the fair value hierarchy that have taken place during the period.

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- Definition

This element represents an asset measured at fair value using significant unobservable inputs (Level 3) which is required for reconciliation purposes of beginning and ending balances.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 820

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (c)

-URI http://asc.fasb.org/extlink&oid=7578670&loc=d3e19207-110258

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

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 157

-Paragraph 32

-Subparagraph c

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

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