INVESTMENTS (Details) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2011	Dec. 31, 2010
INVESTMENTS
Maximum unrealized losses relative to total invested assets (as a percent)	1.00%	1.00%
Fair value
Less than 12 months	$ 187,598	$ 544,913
Greater than 12 months	40,242	2,947
Total fair value	227,840	547,860
Cost or amortized cost
Less than 12 months	198,257	559,946
Greater than 12 months	41,066	3,062
Total Cost or amortized cost	239,323	563,008
Unrealized Loss
Less than 12 months	(10,659)	(15,033)
Greater than 12 months	(824)	(115)
Total Unrealized Loss	(11,483)	(15,148)
Fair value of trading securities	100	100
Debt securities
Fair value
Less than 12 months	144,829	538,835
Greater than 12 months	40,242	2,947
Total fair value	185,071	541,782
Cost or amortized cost
Less than 12 months	148,244	553,574
Greater than 12 months	41,066	3,062
Total Cost or amortized cost	189,310	556,636
Unrealized Loss
Less than 12 months	(3,415)	(14,739)
Greater than 12 months	(824)	(115)
Total Unrealized Loss	(4,239)	(14,854)
Treasuries
Fair value
Less than 12 months	6,317	5,689
Total fair value	6,317	5,689
Cost or amortized cost
Less than 12 months	6,339	5,880
Total Cost or amortized cost	6,339	5,880
Unrealized Loss
Less than 12 months	(22)	(191)
Total Unrealized Loss	(22)	(191)
Agencies
Fair value
Less than 12 months	35,364	295,897
Greater than 12 months	17,997
Total fair value	53,361	295,897
Cost or amortized cost
Less than 12 months	35,489	304,374
Greater than 12 months	18,039
Total Cost or amortized cost	53,528	304,374
Unrealized Loss
Less than 12 months	(125)	(8,477)
Greater than 12 months	(42)
Total Unrealized Loss	(167)	(8,477)
Mortgage-backed
Fair value
Less than 12 months		43,852
Total fair value		43,852
Cost or amortized cost
Less than 12 months		44,659
Total Cost or amortized cost		44,659
Unrealized Loss
Less than 12 months		(807)
Total Unrealized Loss		(807)
ABS/CMO
Fair value
Less than 12 months	2,305	2,160
Total fair value	2,305	2,160
Cost or amortized cost
Less than 12 months	2,341	2,196
Total Cost or amortized cost	2,341	2,196
Unrealized Loss
Less than 12 months	(36)	(36)
Total Unrealized Loss	(36)	(36)
Corporate
Fair value
Less than 12 months	83,711	110,772
Greater than 12 months	20,383	1,951
Total fair value	104,094	112,723
Cost or amortized cost
Less than 12 months	86,809	113,813
Greater than 12 months	21,155	2,012
Total Cost or amortized cost	107,964	115,825
Unrealized Loss
Less than 12 months	(3,098)	(3,041)
Greater than 12 months	(772)	(61)
Total Unrealized Loss	(3,870)	(3,102)
Municipals
Fair value
Less than 12 months	17,132	80,465
Greater than 12 months	1,862	996
Total fair value	18,994	81,461
Cost or amortized cost
Less than 12 months	17,266	82,652
Greater than 12 months	1,872	1,050
Total Cost or amortized cost	19,138	83,702
Unrealized Loss
Less than 12 months	(134)	(2,187)
Greater than 12 months	(10)	(54)
Total Unrealized Loss	(144)	(2,241)
Common Stock
Fair value
Less than 12 months	42,769	6,078
Total fair value	42,769	6,078
Cost or amortized cost
Less than 12 months	50,013	6,372
Total Cost or amortized cost	50,013	6,372
Unrealized Loss
Less than 12 months	(7,244)	(294)
Total Unrealized Loss	$ (7,244)	$ (294)

Represents the excess of amortized cost basis over fair value of debt and equity securities that have been in a loss position for twelve months or longer.

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Represents the excess of amortized cost basis over fair value of debt and equity securities in loss positions.

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Represents the aggregate fair value of investments in debt and equity securities in unrealized loss positions.

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Represents the excess of amortized cost basis over fair value of debt and equity securities that have been in a loss position for less than twelve months.

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Represents the amortized cost of investments in debt and equity securities that have been in a continuous unrealized loss position for less than twelve months.

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Represents the aggregate fair value of investments in debt and equity securities that have been in a continuous unrealized loss position for less than twelve months.

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Represents the amortized cost of investments in debt and equity securities that have been in a continuous unrealized loss position for twelve months or longer.

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Represents the aggregate fair value of investments in debt and equity securities that have been in a continuous unrealized loss position for twelve months or longer.

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Represents the maximum unrealized losses as a percentage of total invested assets.

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This element represents the portion of the balance sheet assertion valued at fair value by the entity whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission. This item represents Trading Securities which consist of all investments in certain debt and equity securities that are bought and held principally for the purpose of selling them in the near term (thus held for only a short period of time) or for which an entity has elected the fair value option. Trading generally reflects active and frequent buying and selling, and trading securities are generally used with the objective of generating profits on short-term differences in price, but this category of investments may also include items which are not intended to be sold in the near term or for which the fair value option has been elected.

+ References

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

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 115

-Paragraph 12

-Subparagraph a

-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 320

-SubTopic 10

-Section 25

-Paragraph 1

-Subparagraph (a)

-URI http://asc.fasb.org/extlink&oid=6379932&loc=d3e22054-111558

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

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Trading Securities

-URI http://asc.fasb.org/extlink&oid=6526789

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