Debt (Tables)

9 Months Ended

Sep. 30, 2012

Debt Disclosure [Abstract]

Schedule of debt outstanding

White Mountains’ debt outstanding as of September 30, 2012 and December 31, 2011 consisted of the following:

Millions	September 30, 2012			December 31, 2011
OBH Senior Notes, at face value	$	269.9		$	269.9
Unamortized original issue discount	(.1		)	(.1		)
OBH Senior Notes, carrying value	269.8			269.8
SIG Senior Notes, at face value	400.0			400.0
Unamortized original issue discount	(.6		)	(.7		)
SIG Senior Notes, carrying value	399.4			399.3
WTM Bank Facility	—			—
Old Lyme	2.1			2.1
Other debt (1)	5.3			6.3
Total debt	$	676.6		$	677.5

⁽¹⁾ Other debt relates to White Mountains’ consolidation of Hamer and Bri-Mar.