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RESERVE FOR LOSSES AND LOSS EXPENSES (DETAILS 2) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2015 | Jun. 30, 2014 | Jun. 30, 2015 | Jun. 30, 2014
Net Favorable Prior Year Reserve Development [Line Items] |  |  |  |
Net favorable prior year reserve development | $ 64,613 | $ 85,354 | $ 120,679 | $ 128,847
Insurance [Member] |  |  |  |
Net Favorable Prior Year Reserve Development [Line Items] |  |  |  |
Net favorable prior year reserve development | 15,421 | 32,963 | 18,783 | 44,571
Reinsurance [Member] |  |  |  |
Net Favorable Prior Year Reserve Development [Line Items] |  |  |  |
Net favorable prior year reserve development | $ 49,192 | $ 52,391 | $ 101,896 | $ 84,276

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- Definition Amount 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 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 18 -Article 12 + Details
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