Financial Assets and Financial Liabilities Measured at Fair Value (Tables)

12 Months Ended

Dec. 31, 2018

Fair Value Disclosures [Abstract]

Carrying values and estimated fair values of long-term debt, including current maturities

The carrying values and estimated fair values of long-term debt at December 31, 2018 and 2017 follow:

	December 31, 2018				December 31, 2017
	Carrying		Fair Value		Carrying		Fair Value
(in millions)	Value		(Level 2)		Value		(Level 2)
Total long-term debt	$	1,348.6	$	1,342.0	$	1,542.4	$	1,591.0

Fair values for derivatives

The fair value of the Company's derivatives follow: 

	Fair Value As of			Fair Value As of
	December 31, 2018			December 31, 2017
(in millions)	(Level 2)			(Level 2)
Interest rate swaps — net (liability) asset position	$	(2.7	)	$	(0.6	)