Segment Information (Tables)

3 Months Ended

Mar. 31, 2018

Segment Reporting [Abstract]

Financial information for White Mountains' segments

The following table presents the financial information for White Mountains’s segments:

Millions	HG Global/BAM			MediaAlpha			Other Operations			Total
Three Months Ended March 31, 2018
Earned insurance premiums	$	3.0		$	—		$	—		$	3.0
Net investment income	3.7			—			16.0			19.7
Net realized and unrealized investment losses	(7.9		)	—			(45.8		)	(53.7		)
Advertising and commission revenues (1)	—			70.1			.9			71.0
Other revenue	.2			1.6			.3			2.1
Total revenues	(1.0		)	71.7			(28.6		)	42.1
Insurance acquisition expenses	1.4			—			—			1.4
Other underwriting expenses	.1			—			—			.1
Cost of sales	—			57.4			.7			58.1
General and administrative expenses	11.8			14.1			22.0			47.9
Interest expense	—			.4			.2			.6
Total expenses	13.3			71.9			22.9			108.1
Pre-tax loss	$	(14.3	)	$	(.2	)	$	(51.5	)	$	(66.0	)

⁽¹⁾  Approximately 31% of MediaAlpha’s advertising revenue was associated with one customer for the three months ended March 31, 2018.

Millions	HG Global/BAM			MediaAlpha			Other Operations		Total
Three Months Ended March 31, 2017
Earned insurance premiums	$	2.0		$	—		$	1.0	$	3.0
Net investment income	2.6			—			10.2		12.8
Net realized and unrealized investment gains	1.3			—			35.0		36.3
Advertising and commission revenues (1)	—			32.5			1.3		33.8
Other revenue	.4			—			2.5		2.9
Total revenues	6.3			32.5			50.0		88.8
Losses and loss adjustment expenses	—			—			1.1		1.1
Insurance acquisition expenses	1.2			—			.1		1.3
Other underwriting expenses	.1			—			—		.1
Cost of sales	—			27.7			1.1		28.8
General and administrative expenses	10.6			5.6			44.5		60.7
Interest expense	—			.2			.2		.4
Total expenses	11.9			33.5			47.0		92.4
Pre-tax (loss) income	$	(5.6	)	$	(1.0	)	$	3.0	$	(3.6	)

⁽¹⁾  Approximately 27% of MediaAlpha’s advertising revenue was associated with one customer for the three months ended March 31, 2017.