Non-controlling Interests (Tables)

9 Months Ended

Sep. 30, 2021

Noncontrolling Interest [Abstract]

Non-controlling Interests

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 September 30, 2021 and December 31, 2020:

	September 30, 2021				December 31, 2020
$ in Millions	Non-controlling Percentage		Non-controlling Equity		Non-controlling Percentage		Non-controlling Equity
Non-controlling interests, excluding BAM
HG Global	3.1	%	$	10.1	3.1	%	$	13.5
Ark	28.0	%	216.1		—	%	—
NSM	3.5	%	16.5		3.4	%	17.0
Kudu	.7	%	3.1		.7	%	2.3
Other	various		12.1		various		2.4
Total, excluding BAM			257.9				35.2
BAM	100.0	%	(125.3)		100.0	%	(123.3)
Total non-controlling interests			$	132.6			$	(88.1)