Other Noncurrent Liabilities (Tables)

9 Months Ended

Sep. 30, 2023

Other Liabilities Disclosure [Abstract]

Other Noncurrent Liabilities

	December 31,		September 30,
	2022		2023
	(In millions)
Accrued development costs	$	48.1	$	38.0
Operating lease liabilities		17.4		16.9
Accrued litigation settlement		27.4		16.0
Insurance claims and expenses		18.7		15.1
Deferred income		25.9		13.8
Other postretirement benefits		7.1		7.2
Employee benefits		4.8		4.7
Reserve for uncertain tax positions		.3		.4
Other		6.7		7.2
Total	$	156.4	$	119.3