v2.4.0.6

COMMITMENTS AND CONTINGENCIES (DETAILS 2) | Dec. 31, 2011 | Dec. 31, 2010 | Dec. 31, 2009
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COMMITMENTS AND CONTINGENCIES [Abstract] |  |  |
Disclosure limit - concentration risk | 10.00% | 10.00% | 10.00%
Reinsurance recoverable on unpaid and paid losses | Reinsurer [Member] | Largest balance [Member] |  |  |
COMMITMENTS AND CONTINGENCIES [Abstract] |  |  |
Concentration risk, percentage of total | 13.00% | 13.00% |
Reinsurance recoverable on unpaid and paid losses | Reinsurer [Member] | Second largest balance [Member] |  |  |
COMMITMENTS AND CONTINGENCIES [Abstract] |  |  |
Concentration risk, percentage of total | 10.00% | 11.00% |
Reinsurance recoverable on unpaid and paid losses | Reinsurer [Member] | Third largest balance [Member] |  |  |
COMMITMENTS AND CONTINGENCIES [Abstract] |  |  |
Concentration risk, percentage of total | 10.00% | 11.00% |
Reinsurance recoverable on unpaid and paid losses | Reinsurer [Member] | Top ten balances [Member] | A [Member] |  |  |
COMMITMENTS AND CONTINGENCIES [Abstract] |  |  |
Concentration risk, percentage of total |  | 70.00% |
Reinsurance recoverable on unpaid and paid losses | Reinsurer [Member] | Top ten balances [Member] | A Plus [Member] |  |  |
COMMITMENTS AND CONTINGENCIES [Abstract] |  |  |
Concentration risk, percentage of total | 70.00% |  |
Gross Premiums Written [Member] | Top three broker balances [Member] |  |  |
COMMITMENTS AND CONTINGENCIES [Abstract] |  |  |
Concentration risk, percentage of total | 63.00% | 62.00% | 62.00%
Gross Premiums Written [Member] | Top three broker balances [Member] | Aon [Member] |  |  |
COMMITMENTS AND CONTINGENCIES [Abstract] |  |  |
Concentration risk, percentage of total | 27.00% | 25.00% | 26.00%
Gross Premiums Written [Member] | Top three broker balances [Member] | Marsh [Member] |  |  |
COMMITMENTS AND CONTINGENCIES [Abstract] |  |  |
Concentration risk, percentage of total | 23.00% | 24.00% | 23.00%
Gross Premiums Written [Member] | Top three broker balances [Member] | Willis [Member] |  |  |
COMMITMENTS AND CONTINGENCIES [Abstract] |  |  |
Concentration risk, percentage of total | 13.00% | 13.00% | 13.00%

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- Definition For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 275 -SubTopic 10 -Section 50 -Paragraph 20 -URI http://asc.fasb.org/extlink&oid=6927468&loc=d3e6404-108592 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 21 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6947722&loc=d3e13537-108611 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 20 -URI http://asc.fasb.org/extlink&oid=6947722&loc=d3e13531-108611 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 275 -SubTopic 10 -Section 50 -Paragraph 18 -URI http://asc.fasb.org/extlink&oid=6927468&loc=d3e6351-108592 + Details
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