| SEGMENT INFORMATION [Text Block] |
Our underwriting operations are organized around our global underwriting platforms, AXIS Insurance and AXIS Re. Therefore we have determined that we have two reportable segments, insurance and reinsurance. We do not allocate our assets by segment, with the exception of goodwill and intangible assets, as we evaluate the underwriting results of each segment separately from the results of our investment portfolio.
The following table summarizes the underwriting results of our reportable segments, as well as the carrying values of allocated goodwill and intangible assets: | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 2013 | | 2012 | | | Three months ended and at June 30, | Insurance | | Reinsurance | | Total | | Insurance | | Reinsurance | | Total | | | | | | | | | | | | | | | | | Gross premiums written | $ | 781,055 |
| | $ | 438,750 |
| | $ | 1,219,805 |
| | $ | 675,009 |
| | $ | 339,366 |
| | $ | 1,014,375 |
| | | Net premiums written | 559,584 |
| | 433,823 |
| | 993,407 |
| | 465,238 |
| | 336,337 |
| | 801,575 |
| | | Net premiums earned | 422,345 |
| | 523,528 |
| | 945,873 |
| | 386,580 |
| | 464,023 |
| | 850,603 |
| | | Other insurance related income | 435 |
| | — |
| | 435 |
| | 299 |
| | — |
| | 299 |
| | | Net losses and loss expenses | (330,992 | ) | | (311,907 | ) | | (642,899 | ) | | (225,900 | ) | | (241,737 | ) | | (467,637 | ) | | | Acquisition costs | (58,749 | ) | | (110,970 | ) | | (169,719 | ) | | (58,654 | ) | | (97,743 | ) | | (156,397 | ) | | | General and administrative expenses | (88,526 | ) | | (35,243 | ) | | (123,769 | ) | | (77,770 | ) | | (29,359 | ) | | (107,129 | ) | | | Underwriting income (loss) | $ | (55,487 | ) | | $ | 65,408 |
| | 9,921 |
| | $ | 24,555 |
| | $ | 95,184 |
| | 119,739 |
| | | | | | | | | | | | | | | | | Corporate expenses | | | | | (25,265 | ) | | | | | | (54,202 | ) | | | Net investment income | | | | | 83,112 |
| | | | | | 74,449 |
| | | Net realized investment gains | | | | | 16,235 |
| | | | | | 30,405 |
| | | Foreign exchange gains | | | | | 10,320 |
| | | | | | 36,162 |
| | | Interest expense and financing costs | | | | | (15,260 | ) | | | | | | (15,170 | ) | | | Income before income taxes | | | | | $ | 79,063 |
| | | | | | $ | 191,383 |
| | | | | | | | | | | | | | | | | Net loss and loss expense ratio | 78.4 | % | | 59.6 | % | | 68.0 | % | | 58.4 | % | | 52.1 | % | | 55.0 | % | | | Acquisition cost ratio | 13.9 | % | | 21.2 | % | | 17.9 | % | | 15.2 | % | | 21.1 | % | | 18.4 | % | | | General and administrative expense ratio | 20.9 | % | | 6.7 | % | | 15.8 | % | | 20.1 | % | | 6.3 | % | | 18.9 | % | | | Combined ratio | 113.2 | % | | 87.5 | % | | 101.7 | % | | 93.7 | % | | 79.5 | % | | 92.3 | % | | | | | | | | | | | | | | | | | Goodwill and intangible assets | $ | 91,370 |
| | $ | — |
| | $ | 91,370 |
| | $ | 98,203 |
| | $ | — |
| | $ | 98,203 |
| | | | | | | | | | | | | | | |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | 2013 | | 2012 | | | Six months ended and at June 30, | Insurance | | Reinsurance | | Total | | Insurance | | Reinsurance | | Total | | | | | | | | | | | | | | | | | Gross premiums written | $ | 1,377,769 |
| | $ | 1,588,518 |
| | $ | 2,966,287 |
| | $ | 1,199,689 |
| | $ | 1,339,856 |
| | $ | 2,539,545 |
| | | Net premiums written | 992,264 |
| | 1,571,582 |
| | 2,563,846 |
| | 843,853 |
| | 1,324,909 |
| | 2,168,762 |
| | | Net premiums earned | 824,224 |
| | 995,687 |
| | 1,819,911 |
| | 776,837 |
| | 920,131 |
| | 1,696,968 |
| | | Other insurance related income | 1,030 |
| | — |
| | 1,030 |
| | 931 |
| | — |
| | 931 |
| | | Net losses and loss expenses | (548,328 | ) | | (532,985 | ) | | (1,081,313 | ) | | (467,623 | ) | | (510,705 | ) | | (978,328 | ) | | | Acquisition costs | (116,009 | ) | | (199,200 | ) | | (315,209 | ) | | (119,808 | ) | | (204,985 | ) | | (324,793 | ) | | | General and administrative expenses | (175,415 | ) | | (68,283 | ) | | (243,698 | ) | | (155,214 | ) | | (57,133 | ) | | (212,347 | ) | | | Underwriting income (loss) | $ | (14,498 | ) | | $ | 195,219 |
| | 180,721 |
| | $ | 35,123 |
| | $ | 147,308 |
| | 182,431 |
| | | | | | | | | | | | | | | | | Corporate expenses | | | | | (46,810 | ) | | | | | | (72,637 | ) | | | Net investment income | | | | | 192,019 |
| | | | | | 190,472 |
| | | Net realized investment gains | | | | | 60,713 |
| | | | | | 44,896 |
| | | Foreign exchange gains | | | | | 45,201 |
| | | | | | 15,715 |
| | | Interest expense and financing costs | | | | | (31,095 | ) | | | | | | (30,807 | ) | | | Income before income taxes | | | | | $ | 400,749 |
| | | | | | $ | 330,070 |
| | | | | | | | | | | | | | | | | Net loss and loss expense ratio | 66.5 | % | | 53.5 | % | | 59.4 | % | | 60.2 | % | | 55.5 | % | | 57.7 | % | | | Acquisition cost ratio | 14.1 | % | | 20.0 | % | | 17.3 | % | | 15.4 | % | | 22.3 | % | | 19.1 | % | | | General and administrative expense ratio | 21.3 | % | | 6.9 | % | | 16.0 | % | | 20.0 | % | | 6.2 | % | | 16.8 | % | | | Combined ratio | 101.9 | % | | 80.4 | % | | 92.7 | % | | 95.6 | % | | 84.0 | % | | 93.6 | % | | | | | | | | | | | | | | | | | Goodwill and intangible assets | $ | 91,370 |
| | $ | — |
| | $ | 91,370 |
| | $ | 98,203 |
| | $ | — |
| | $ | 98,203 |
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