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Available-for-sale Securities, Gross Unrealized Losses, Market Value of Bonds Percent of Amortized Cost

+ References

No definition available.

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- Definition

Available for Sale Securities, Gross Unrealized Losses, Number of Securities

+ References

No definition available.

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- Definition

Available for Sale Securities, Gross Unrealized Losses, Number of Securities as a Percentage of Total Debt

+ References

No definition available.

+ Details

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- Definition

Available-for-sale Securities, Gross Unrealized Losses, Number of Securities, Debt Maturities, Twelve Months or Greater

+ References

No definition available.

+ Details

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- Definition

Available-for-sale Securities, Gross Unrealized Losses, Number of Securities, Debt Maturities, Twelve Months or Greater, Percent of Total

+ References

No definition available.

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- Definition

Liquidity Loss, Expected to be Recovered

+ References

No definition available.

+ Details

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- Definition

Other than Temporary Impairment Losses, Investments, Available-for-sale Securities, Number of Securities

+ References

No definition available.

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- Definition

Other than Temporary Impairment Losses, number of securities rated investment grade

+ References

No definition available.

+ Details

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- Definition

Disclosure regarding factors used to determine that the impairment of securities categorized as held-to-maturity where cost exceeds fair value is not an other than temporary impairment (OTTI). This item contains disclosure of the number of investment positions in the held-to-maturity investments determined to be temporarily impaired.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 320

-SubTopic 10

-Section 50

-Paragraph 6

-Subparagraph (b)(3)

-URI http://asc.fasb.org/extlink&oid=6872113&loc=d3e27290-111563

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

-Publisher FASB

-Name Emerging Issues Task Force (EITF)

-Number 03-1

-Paragraph 21

-Subparagraph b(3)

-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.

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

-Publisher FASB

-Name FASB Staff Position (FSP)

-Number FAS115-1/124-1

-Paragraph 17

-Subparagraph b(3)

-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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- Definition

The amount of other than temporary impairment (OTTI) losses on equity securities, OTTI related to credit losses on debt securities, and OTTI losses on debt securities when the entity intends to sell the securities or it is more likely than not that the entity will be required to sell the securities before recovery of its amortized cost basis. Additionally, this item includes OTTI losses recognized during the period on investments accounted for under the cost method of accounting.

+ References

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

-Publisher FASB

-Name FASB Staff Position (FSP)

-Number FAS115-1/124-1

-Paragraph 16B

-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.

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

-Publisher FASB

-Name FASB Staff Position (FSP)

-Number FAS115-1/124-1

-Paragraph 7

-Footnote 2

-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.

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

-Publisher FASB

-Name FASB Staff Position (FSP)

-Number FAS115-1/124-1

-Paragraph 15D

-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.

Reference 4: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name FASB Staff Position (FSP)

-Number FAS115-1/124-1

-Paragraph 15C

-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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Investments (Unrealized Losses) (Details) (USD $)	3 Months Ended		9 Months Ended
Investments (Unrealized Losses) (Details) (USD $)	Sep. 30, 2012 securities	Sep. 30, 2011	Sep. 30, 2012 securities	Sep. 30, 2011
Available-for-Sale Securities and Held-to-Maturity Securities [Line Items]
Credit impairment reported in earnings	$ 511,000	$ 22,000	$ 1,130,000	$ 22,000
Other-than-temporarily impaired securities, number of securities rated investment grade	2		2
Asset-Backed Security [Member]
Available-for-Sale Securities and Held-to-Maturity Securities [Line Items]
Securities, other-than-temporarily impaired	5
Credit impairment reported in earnings	500,000
Liquidity loss, not affecting current earnings, expected to be recovered	$ 1,200,000
Equity Securities [Member]
Available-for-Sale Securities and Held-to-Maturity Securities [Line Items]
Securities, other-than-temporarily impaired	3
Gross unrealized losses, number of securities rated investment grade	13		13
Debt Securities [Member]
Available-for-Sale Securities and Held-to-Maturity Securities [Line Items]
Gross unrealized losses, number of issues	49		49
Gross unrealized losses, percentage of total debt	4.00%		4.00%
Gross unrealized losses, market value as a percent of amortized cost	97.00%		97.00%
Gross unrealized losses, number of securities with maturities of 12 months or greater	15		15
Gross unrealized losses, number of securities with maturities of 12 months or greater (as a percentage)	30.60%		30.60%
Debt Securities [Member] \| Investment Grade [Member]
Available-for-Sale Securities and Held-to-Maturity Securities [Line Items]
Gross unrealized losses, number of securities rated investment grade	38		38
U.S. Treasury [Member]
Available-for-Sale Securities and Held-to-Maturity Securities [Line Items]
Gross unrealized losses, number of securities rated investment grade	0		0
U.S. Agencies [Member]
Available-for-Sale Securities and Held-to-Maturity Securities [Line Items]
Gross unrealized losses, number of securities rated investment grade	0		0
States and Political Subdivisions [Member]
Available-for-Sale Securities and Held-to-Maturity Securities [Line Items]
Gross unrealized losses, number of securities rated investment grade	5		5
States and Political Subdivisions [Member] \| A Minus Rating or Above [Member]
Available-for-Sale Securities and Held-to-Maturity Securities [Line Items]
Gross unrealized losses, number of securities rated investment grade	4		4
States and Political Subdivisions [Member] \| BB Rating [Member]
Available-for-Sale Securities and Held-to-Maturity Securities [Line Items]
Gross unrealized losses, number of securities rated investment grade	1		1
Foreign Governments [Member]
Available-for-Sale Securities and Held-to-Maturity Securities [Line Items]
Gross unrealized losses, number of securities rated investment grade	0		0
Public Utilities [Member] \| BB Plus [Member]
Available-for-Sale Securities and Held-to-Maturity Securities [Line Items]
Gross unrealized losses, number of securities rated investment grade	5		5
Corporate [Member]
Available-for-Sale Securities and Held-to-Maturity Securities [Line Items]
Gross unrealized losses, number of securities rated investment grade	27		27
Corporate [Member] \| Below Investment Grade [Member]
Available-for-Sale Securities and Held-to-Maturity Securities [Line Items]
Gross unrealized losses, number of securities rated investment grade	5		5
Mortgage-backed [Member] \| CCC Rating [Member]
Available-for-Sale Securities and Held-to-Maturity Securities [Line Items]
Gross unrealized losses, number of securities rated investment grade	2		2
Home Equity [Member]
Available-for-Sale Securities and Held-to-Maturity Securities [Line Items]
Gross unrealized losses, number of securities rated investment grade	8		8
Home Equity [Member] \| AAA Rating [Member]
Available-for-Sale Securities and Held-to-Maturity Securities [Line Items]
Gross unrealized losses, number of securities rated investment grade	5		5
Home Equity [Member] \| AA Rating [Member]
Available-for-Sale Securities and Held-to-Maturity Securities [Line Items]
Gross unrealized losses, number of securities rated investment grade	2		2
Home Equity [Member] \| CC Rating [Member]
Available-for-Sale Securities and Held-to-Maturity Securities [Line Items]
Gross unrealized losses, number of securities rated investment grade	1		1
Manufactured Housing [Member] \| A Rating or Above [Member]
Available-for-Sale Securities and Held-to-Maturity Securities [Line Items]
Gross unrealized losses, number of securities rated investment grade	2		2