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Goodwill (Tables)
9 Months Ended
Sep. 30, 2011
Goodwill [Abstract] 
Goodwill balances by reportable segments
  U.S. Property Professional Accident & U.S. Surety    
  & Casualty Liability Health & Credit International Total
                   
Balance at beginning of year $223,000 $249,820 $144,128 $79,700 $125,000 $821,648
Earnout and other  0  51,727  0  0  0  51,727
Balance at September 30, 2011 $223,000 $301,547 $144,128 $79,700 $125,000 $873,375