Debt (Tables)

6 Months Ended

Jun. 30, 2017

Debt Disclosure [Abstract]

Schedule of debt outstanding

White Mountains’s debt outstanding as of June 30, 2017 and December 31, 2016 consisted of the following:

Millions	June 30, 2017		Effective   Rate (1)	December 31, 2016			Effective   Rate (1)
WTM Bank Facility	$	—	N/A	$	—		N/A
Unamortized issue costs	—			—
WTM Bank Facility, carrying value	—			—
MediaAlpha Bank Facility	10.6		5.4%	—			N/A
Unamortized issuance cost	—			—
MediaAlpha Bank Facility, carrying value	10.6			—
Previous MediaAlpha Bank Facility	—		N/A	12.9			5.7%
Unamortized issuance cost	—			(.2		)
Previous MediaAlpha Bank Facility, carrying value	—			12.7
Total debt	$	10.6		$	12.7

 ⁽¹⁾ Effective rate considers the effect of the debt issuance costs.