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SEGMENT INFORMATION (DETAILS 3) (USD $)
In Thousands, unless otherwise specified |
3 Months Ended | 12 Months Ended | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
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Dec. 31, 2013
|
Sep. 30, 2013
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Jun. 30, 2013
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Mar. 31, 2013
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Dec. 31, 2012
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Sep. 30, 2012
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Jun. 30, 2012
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Mar. 31, 2012
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Dec. 31, 2013
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Dec. 31, 2012
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Dec. 31, 2011
|
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| Revenue from External Customer [Line Items] | |||||||||||
| Net premiums earned | $ 941,911 | $ 945,242 | $ 945,873 | $ 874,039 | $ 856,049 | $ 862,447 | $ 850,603 | $ 846,362 | $ 3,707,065 | $ 3,415,463 | $ 3,314,961 |
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Insurance [Member]
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|||||||||||
| Revenue from External Customer [Line Items] | |||||||||||
| Net premiums earned | 1,722,762 | 1,558,058 | 1,429,687 | ||||||||
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Insurance [Member] | Property [Member]
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|||||||||||
| Revenue from External Customer [Line Items] | |||||||||||
| Net premiums earned | 462,364 | 408,943 | 385,291 | ||||||||
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Insurance [Member] | Marine [Member]
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|||||||||||
| Revenue from External Customer [Line Items] | |||||||||||
| Net premiums earned | 179,057 | 171,165 | 152,123 | ||||||||
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Insurance [Member] | Terrorism [Member]
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|||||||||||
| Revenue from External Customer [Line Items] | |||||||||||
| Net premiums earned | 39,298 | 38,605 | 35,213 | ||||||||
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Insurance [Member] | Aviation [Member]
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|||||||||||
| Revenue from External Customer [Line Items] | |||||||||||
| Net premiums earned | 48,489 | 60,363 | 70,681 | ||||||||
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Insurance [Member] | Credit and political risk [Member]
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|||||||||||
| Revenue from External Customer [Line Items] | |||||||||||
| Net premiums earned | 68,192 | 87,103 | 97,680 | ||||||||
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Insurance [Member] | Professional lines [Member]
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|||||||||||
| Revenue from External Customer [Line Items] | |||||||||||
| Net premiums earned | 586,200 | 563,500 | 536,238 | ||||||||
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Insurance [Member] | Liability [Member]
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|||||||||||
| Revenue from External Customer [Line Items] | |||||||||||
| Net premiums earned | 110,623 | 86,873 | 89,555 | ||||||||
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Insurance [Member] | Accident and health [Member]
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|||||||||||
| Revenue from External Customer [Line Items] | |||||||||||
| Net premiums earned | 228,539 | 141,506 | 62,906 | ||||||||
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Reinsurance [Member]
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|||||||||||
| Revenue from External Customer [Line Items] | |||||||||||
| Net premiums earned | 1,984,303 | 1,857,405 | 1,885,274 | ||||||||
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Reinsurance [Member] | Catastrophe [Member]
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|||||||||||
| Revenue from External Customer [Line Items] | |||||||||||
| Net premiums earned | 380,199 | 375,088 | 456,858 | ||||||||
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Reinsurance [Member] | Property [Member]
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|||||||||||
| Revenue from External Customer [Line Items] | |||||||||||
| Net premiums earned | 350,970 | 351,470 | 356,022 | ||||||||
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Reinsurance [Member] | Professional lines [Member]
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|||||||||||
| Revenue from External Customer [Line Items] | |||||||||||
| Net premiums earned | 304,754 | 297,726 | 281,025 | ||||||||
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Reinsurance [Member] | Credit and surety [Member]
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|||||||||||
| Revenue from External Customer [Line Items] | |||||||||||
| Net premiums earned | 279,943 | 277,185 | 263,912 | ||||||||
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Reinsurance [Member] | Motor [Member]
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|||||||||||
| Revenue from External Customer [Line Items] | |||||||||||
| Net premiums earned | 221,844 | 237,006 | 202,830 | ||||||||
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Reinsurance [Member] | Liability [Member]
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|||||||||||
| Revenue from External Customer [Line Items] | |||||||||||
| Net premiums earned | 234,736 | 220,874 | 230,872 | ||||||||
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Reinsurance [Member] | Agriculture [Member]
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| Revenue from External Customer [Line Items] | |||||||||||
| Net premiums earned | 126,490 | 17,116 | 15,031 | ||||||||
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Reinsurance [Member] | Engineering [Member]
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| Revenue from External Customer [Line Items] | |||||||||||
| Net premiums earned | 66,243 | 68,402 | 65,727 | ||||||||
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Reinsurance [Member] | Other [Member]
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| Revenue from External Customer [Line Items] | |||||||||||
| Net premiums earned | $ 19,124 | $ 12,538 | $ 12,997 | ||||||||