Other noncurrent liabilities (Tables)

3 Months Ended

Mar. 31, 2024

Other noncurrent liabilities

Other noncurrent liabilities

	December 31,		March 31,
	2023		2024
	(In millions)
Accrued development costs	$	42.3	$	41.9
Operating lease liabilities		18.6		17.9
Accrued litigation settlement		16.1		16.2
Deferred income		15.5		15.2
Insurance claims and expenses		14.9		15.0
Other postretirement benefits		7.4		7.2
Employee benefits		4.9		4.7
Other		7.8		7.8
Total	$	127.5	$	125.9