Disclosures about Fair Value of Financial Instruments (Tables)

12 Months Ended

Dec. 31, 2016

Fair Value Disclosures [Abstract]

Summary of Company's Financial Instruments Whose Carrying Amount Did Not Equal Fair Value

A summary of our financial instruments whose carrying value did not equal fair value is shown below:

	December 31, 2016				December 31, 2015
(in millions)	Carrying Amount		Fair Value		Carrying Amount		Fair Value
Junior subordinated debentures	$	172.7	$	162.4	$	172.7	$	166.5
Senior unsecured fixed rate notes		139.5		139.3		139.3		141.8
Other indebtedness:
Floating rate loan stock		54.8		51.5		54.6		52.7
Note payable		0.6		0.6		0.6		0.6
	$	367.6	$	353.8	$	367.2	$	361.6