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Fair Value of Financial Instruments (Tables)
9 Months Ended
Sep. 30, 2011
Fair Value of Financial Instruments 
Summary of the fair value and carrying value of financial instruments

 

 

 

 

September 30, 2011

 

December 31, 2010

 

Millions

 

Fair
Value

 

Carrying
Value

 

Fair
Value

 

Carrying
Value

 

OBH Senior Notes

 

$

276.6

 

$

269.7

 

$

435.1

 

$

419.6

 

Sirius Group Senior Notes

 

403.7

 

399.3

 

390.9

 

399.2

 

Sirius Group Preference Shares

 

220.0

 

250.0

 

212.5

 

250.0