The total amount of cash and securities held by third party trustees pursuant to terms of debt instruments or other agreements as of the date of each statement of financial position presented, which can be used by the trustee only to pay the noncurrent portion of specified obligations.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 140
-Paragraph 17
-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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009.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.

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 140
-Paragraph 61
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009.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 Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08.(b))
-URI http://asc.fasb.org/extlink&oid=6881521&loc=d3e23780-122690

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Maximum potential amount of future payments (undiscounted) the guarantor could be required to make under the guarantee or each group of similar guarantees before reduction for potential recoveries under recourse or collateralization provisions.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name FASB Interpretation (FIN)
-Number 45
-Paragraph 13
-Subparagraph b
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009.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 Accounting Standards Codification
-Topic 460
-SubTopic 10
-Section 50
-Paragraph 4
-Subparagraph (b)(1)
-URI http://asc.fasb.org/extlink&oid=6851643&loc=d3e12069-110248

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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.

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Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 129
-Paragraph 2, 4
-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 SEC
-Name Regulation S-X (SX)
-Number 210
-Section 02
-Paragraph 19, 22
-Article 5

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.19(b),22(b))
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- Definition

The fair value of trading securities that serve as collateral for borrowings.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher AICPA
-Name Statement of Position (SOP)
-Number 01-6
-Paragraph 13
-Subparagraph i
-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 Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=6965416&loc=d3e5086-111524

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Assets held in trust for the benefit of the Lender's cedants and policyholders, and to facilitate the accreditation of the Lender as an alien insurer/reinsurer by certain regulators.

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Investments.

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Line of credit facility expiration period.

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- Definition

Average reset period on collateral reinvested as part of the securities lending program.

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The required percentage of market value that is required as collateral for securities loaned pursuant to the Company's securities lending program. Collateral must be received in the form of cash, government securities and letters of credit and is held by a third party.

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The amount of securities on loan as of the balance sheet date, pursuant to the Company's securities lending program.

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Unrealized gain loss on securities received as collateral.

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Investments (Details Textuals) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2011	Jun. 30, 2010	Jun. 30, 2011	Jun. 30, 2010	Dec. 31, 2010
Securities lending [Abstract]
Securities lending - Percent of market value required in collateral			102.00%
Securities on loan	$ 21,604		$ 21,604		$ 22,566
Securities lending - average reset period on collateral reinvested			1.1		17.6
Securities lending - unrealized gain (loss) on collateral securities	11	(6)	41	(1,020)
Talbot Fal Facility [Member]
Line of Credit Facility [Line Items]
Secured letter of credit facility, value	25,000		25,000
Investments held in trust for the benefit of Talbot FAL Facility	1,545,533		1,545,533		1,489,243
Investments held in trust	1,993,707		1,993,707		1,729,631
Investments pledged as collateral	45,204		45,204		45,504
Letter of credit facility amount issued and outstanding	25,000		25,000		25,000
Ipc Bi Lateral Facility [Member]
Line of Credit Facility [Line Items]
Investments pledged as collateral	106,216		106,216		105,310
Letter of credit facility amount issued and outstanding	63,284		63,284		68,063
Syndicate of Commercial Banks [Member]
Line of Credit Facility [Line Items]
Secured letter of credit facility, term			5 years
Secured letter of credit facility, value	500,000		500,000
Investments pledged as collateral	352,636		352,636		325,532
Letter of credit facility amount issued and outstanding	$ 277,679		$ 277,679		$ 268,944