Fair Value Measurements (Tables)

3 Months Ended

Mar. 31, 2018

Fair Value Disclosures [Abstract]

Assets and liabilities measured at fair value on a recurring basis

The following table presents the fair value of an investment in marketable equity securities, classified as Level 1 and related to publicly traded stock of a non-U.S. company, recorded in Other assets, net in the accompanying Consolidated Balance Sheets (in millions):

	As of March 31, 2018		As of December 31, 2017
Investment in marketable equity securities	$	3.9	$	4.1

Other fair value measurements

The following table presents their fair value (in millions):

	As of March 31, 2018		As of December 31, 2017
Senior unsecured notes	$	300.0	$	308.1