XML 61 R44.htm IDEA: XBRL DOCUMENT v3.10.0.1
Common Shareholders’ Equity and Non-controlling Interests Common Shareholders’ Equity and Non-controlling Interests (Tables)
 12 Months Ended
Dec. 31, 2018
Noncontrolling Interest [Abstract]  
Noncontrolling Interest
The following table presents the balance of non-controlling interests included in White Mountains’s total equity and the related percentage of each consolidated entity’s total equity owned by non-controlling shareholders as of December 31, 2018 and 2017:
 
 
December 31, 2018
 
December 31, 2017
$ in Millions
 
Non-controlling Percentage
 
Non-controlling Equity
 
Non-controlling Percentage
 
Non-controlling Equity
Other, excluding BAM
 
 
 
 
 
 
 
 
HG Global
 
3.1
%
$
14.5

 
3.1
%
$
15.9

NSM
 
4.5
 
13.6

 
—
 
—

MediaAlpha
 
39.0
 
16.2

 
35.7
 
13.1

Buzz
 
22.9
 
1.1

 
22.9
 
2.5

Other NSM
 
13.4
 
.3

 
—
 
—

Total other, excluding BAM
 
 
 
45.7

 
 
 
31.5

 
 
 
 
 
 
 
 
 
BAM
 
100.0
 
(170.6
)
 
100.0
 
(163.2
)
Total non-controlling interests
 
 
 
$
(124.9
)
 
 
 
$
(131.7
)