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SEGMENT INFORMATION (DETAILS 2) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2016 | Dec. 31, 2015 | Dec. 31, 2014
Revenues From External Customers By Geographic Location Of Subsidiary [Line Items] |  |  |
Gross premiums written | $ 4,970,208 | $ 4,603,730 | $ 4,711,519
Bermuda [Member] |  |  |
Revenues From External Customers By Geographic Location Of Subsidiary [Line Items] |  |  |
Gross premiums written | 465,980 | 525,226 | 618,273
Ireland [Member] |  |  |
Revenues From External Customers By Geographic Location Of Subsidiary [Line Items] |  |  |
Gross premiums written | 1,650,229 | 1,532,753 | 1,641,767
U.S. [Member] |  |  |
Revenues From External Customers By Geographic Location Of Subsidiary [Line Items] |  |  |
Gross premiums written | 2,562,789 | 2,364,099 | 2,309,107
Other [Member] |  |  |
Revenues From External Customers By Geographic Location Of Subsidiary [Line Items] |  |  |
Gross premiums written | $ 291,210 | $ 181,652 | $ 142,372

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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 direct and assumed premiums written. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 605 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6486672&loc=d3e27261-158547 + Details
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