XML 159 R34.htm IDEA: XBRL DOCUMENT v2.4.0.8
SCHEDULE IV REINSURANCE
 12 Months Ended
Dec. 31, 2013
Supplemental Schedule of Reinsurance Premiums for Insurance Companies [Abstract]  
SCHEDULE IV REINSURANCE
WHITE MOUNTAINS INSURANCE GROUP, LTD.
REINSURANCE
(Millions)

Column A
 
Column B
 
Column C
 
Column D
 
Column E
 
Column F
Premiums earned
 
Gross amount
 
Ceded to other
companies
 
Assumed from
other companies
 
Net amount
 
Percentage of
amount assumed
to net
Years ended:
 
 

 
 

 
 

 
 

 
 

December 31, 2013
 
 

 
 

 
 

 
 

 
 

OneBeacon (1)
 
$
1,043.3

 
$
(71.4
)
 
$
148.5

 
$
1,120.4

 
13.3
%
Sirius Group
 
174.0

 
(246.2
)
 
938.6

 
866.4

 
108.3
%
December 31, 2012
 
 

 
 

 
 

 
 

 
 

OneBeacon(1)
 
$
1,158.3

 
$
(79.1
)
 
$
52.8

 
$
1,132.0

 
4.7
%
Sirius Group
 
169.9

 
(226.6
)
 
988.3

 
931.6

 
106.1
%
December 31, 2011
 
 

 
 

 
 

 
 

 
 

OneBeacon(1)
 
$
1,035.9

 
$
(66.0
)
 
$
42.3

 
$
1,012.2

 
4.2
%
Sirius Group
 
128.5

 
(206.0
)
 
989.8

 
912.3

 
108.5
%
(1)
The amounts shown excludes balances reclassified to held for sale in the consolidated balance sheets related to the Runoff Transaction as of December 31, 2013 and 2012 and to AutoOne as of December 31, 2011. See Note 21 - “Discontinued Operations”.































Schedules of the Registrant should be read in conjunction with the Consolidated Financial Statements and Notes.