XML 34 R50.htm IDEA: XBRL DOCUMENT v2.4.0.8
Segment Information (Revenue From Continuing Operations by Segment) (Details) (USD $)
In Thousands, unless otherwise specified
 3 Months Ended
Mar. 31, 2014
Mar. 31, 2013
Segment Reporting Information [Line Items]    
Total net premiums earned $ 456,495 $ 420,940
Other income 9,824 2,784
Net investment income 35,534 32,870
Net realized investment gains 7,218 3,355
Total investment revenues 42,752 36,225
Total all segments 509,066 459,885
Total revenues 509,071 459,949
Commercial Automobile [Member]
    
Segment Reporting Information [Line Items]    
Total net premiums earned 82,216 74,347
Workers Compensation [Member]
    
Segment Reporting Information [Line Items]    
Total net premiums earned 69,413 66,084
General Liability [Member]
    
Segment Reporting Information [Line Items]    
Total net premiums earned 108,818 97,703
Commercial Property [Member]
    
Segment Reporting Information [Line Items]    
Total net premiums earned 60,186 53,415
Business Owners' Policies [Member]
    
Segment Reporting Information [Line Items]    
Total net premiums earned 20,869 18,540
Bonds Segment [Member]
    
Segment Reporting Information [Line Items]    
Total net premiums earned 4,756 4,764
Other Commercial [Member]
    
Segment Reporting Information [Line Items]    
Total net premiums earned 3,183 2,992
Total Standard Commercial Lines [Member]
    
Segment Reporting Information [Line Items]    
Total net premiums earned 349,441 317,845
Personal Automobile [Member]
    
Segment Reporting Information [Line Items]    
Total net premiums earned 38,226 38,393
Homeowners [Member]
    
Segment Reporting Information [Line Items]    
Total net premiums earned 33,298 31,135
Other Personal [Member]
    
Segment Reporting Information [Line Items]    
Total net premiums earned 3,294 3,508
Total standard Personal Lines [Member]
    
Segment Reporting Information [Line Items]    
Total net premiums earned 74,818 73,036
Total Standard Insurance Operations [Member]
    
Segment Reporting Information [Line Items]    
Total net premiums earned 424,259 390,881
Total insurance operations revenues 434,078 393,601
Miscellaneous Income [Member]
    
Segment Reporting Information [Line Items]    
Other income 9,819 2,720
Excess And Surplus Operations [Member]
    
Segment Reporting Information [Line Items]    
Total net premiums earned 32,236 30,059
Other Income [Member]
    
Segment Reporting Information [Line Items]    
Other income $ 5 $ 64