Restructuring and Other Items, net (Tables)

12 Months Ended

Dec. 31, 2016

Restructuring and Other Items, net [Abstract]

Schedule of restructuring charges

The following table outlines the amount of restructuring charges recorded within the Consolidated Statements of Income, and the segments they relate to:

Restructuring and Other Items, net	Year Ended December 31, 2016
	2016			2015		2014
	(millions of dollars)
Impairment of assets
Performance Materials	$	-		$	-	$	0.4
Construction Technologies		-			-		11.7
Energy Services		18.5			33.0		11.6
Corporate		-			1.2		-
Total impairment of assets charges	$	18.5		$	34.2	$	23.7
Severance and other employee costs
Specialty Minerals	$	-		$	-	$	3.0
Refractories		-			2.0		0.7
Performance Materials		-			-		5.6
Construction Technologies		-			-		5.8
Energy Services		12.7			9.0		3.7
Total severance and other employee costs	$	12.7		$	11.0	$	18.8
Other
Refractories	$	(2.9	)	$	-	$	-
Performance Materials		-			-		0.7
Total restructuring and other items, net	$	28.3		$	45.2	$	43.2

Reconciliation of restructuring liability

The following table is a reconciliation of our restructuring liability balance:

	(millions of dollars)
Restructuring liability, December 31, 2015	$	7.9
Additional provisions		12.7
Cash payments		(17.0	)
Restructuring liability,  December 31, 2016	$	3.6