Other Noncurrent Assets (Tables)

12 Months Ended

Dec. 31, 2018

Deferred Costs Capitalized Prepaid And Other Assets Disclosure [Abstract]

Schedule of Other Noncurrent Assets

	December 31,
	2017		2018
	(In millions)
Pension asset	$	1.6	$	.8
Deferred financing costs, net		1.1		.9
Other		2.8		1.9
Total	$	5.5	$	3.6