Fair Value Measurements (Tables)

12 Months Ended

Dec. 31, 2017

Fair Value Disclosures [Abstract]

Carrying Amount and Fair Values of the Company's Assets and Liabilities Measured on a Recurring Basis

The following table presents the carrying amount and fair values of the Company’s assets and liabilities measured on a recurring basis:

	December 31, 2017				December 31, 2016
(in millions)	Carrying Amount		Fair Value		Carrying Amount		Fair Value
Assets
Non-derivatives:
Cash and cash equivalents	$	90.2	$	90.2	$	101.9	$	101.9
Derivatives (Level 1 measurement):
Other current and non-current assets:
Foreign currency forward exchange contracts		1.1		1.1		0.0		0.0
Interest rate swaps		1.5		1.5		0.4		0.4
Liabilities
Non-derivatives:
Long-term debt (including current portion)	$	218.4	$	218.4	$	268.8	$	268.8
Finance leases (including current portion)		5.9		5.9		4.5		4.5
Derivatives (Level 1 measurement):
Other non-current liabilities:
Foreign currency forward exchange contracts		0.0		0.0		0.6		0.6
Non-financial liabilities (Level 3 measurement):
Stock equivalent units		13.6		13.6		9.8		9.8