Supplemental Cash Flow Information (Tables)

12 Months Ended

Dec. 31, 2017

Supplemental Cash Flow Information [Abstract]

Schedule of Cash Flow, Supplemental Disclosures

	Years Ended December 31,
(In millions)	2017		2016	2015
Cash paid for:
Interest	$	27.1	20.1	18.6
Income taxes, net	83.8		64.3	45.4