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RESERVE FOR LOSSES AND LOSS EXPENSES (DETAILS 3) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2015 | Dec. 31, 2014 | Dec. 31, 2013
Net Favorable Prior Year Reserve Development [Line Items] |  |  |
Net favorable prior year reserve development | $ 243,048 | $ 258,944 | $ 219,436
Insurance [Member] |  |  |
Net Favorable Prior Year Reserve Development [Line Items] |  |  |
Net favorable prior year reserve development | 23,447 | 63,735 | 50,355
Reinsurance [Member] |  |  |
Net Favorable Prior Year Reserve Development [Line Items] |  |  |
Net favorable prior year reserve development | $ 219,601 | $ 195,209 | $ 169,081

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- Definition 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. + References No definition available. + Details
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- Definition Amount of expense (reversal of expense) for claims incurred in prior reporting periods and related claims settlement costs. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 235 -Section S99 -Paragraph 3 -Subparagraph (SX 210.12-18) -URI http://asc.fasb.org/extlink&oid=34713774&loc=d3e575016-122915 + Details
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