Other Noncurrent Assets (Tables)

3 Months Ended

Mar. 31, 2017

Deferred Costs Capitalized Prepaid And Other Assets Disclosure [Abstract]

Other Noncurrent Assets

	December 31,2016		March 31, 2017
	(In millions)
Other noncurrent assets:
Land held for development	$	138.1	$	136.7
Waste disposal site operating permits, net		42.9		42.4
Restricted cash		24.2		35.2
IBNR receivables		7.1		7.4
Capital lease deposit		6.2		6.2
Pension asset		1.6		1.7
Other		17.9		16.7
Total	$	238.0	$	246.3