Fair Value of Financial Instruments (Tables)

12 Months Ended

Dec. 31, 2015

Fair Value Disclosures [Abstract]

Summary of the fair value and carrying value of financial instruments

The following table summarizes the fair values and book values as of December 31, 2015 and 2014:

	December 31, 2015				December 31, 2014
Millions	Fair Value		Carrying Value		Fair Value		Carrying Value
OBH Senior Notes	$	276.4	$	274.8	$	286.0	$	274.7
Tranzact Bank Facility	102.8		102.9		68.7		67.4
MediaAlpha Bank Facility	15.0		14.7		—		—