Quarterly Financial Data (unaudited) (Tables)

12 Months Ended

Dec. 31, 2016

Quarterly Financial Data (unaudited) [Abstract]

Quarterly Financial Data

	2016 quarters
	First		Second		Third		Fourth
	(millions of dollars, except per share amounts)
Net sales by segment
Specialty Minerals segment	$	155.6	$	150.6	$	147.3	$	138.0
Refractories segment		69.2		73.9		63.4	$	68.0
Performance Materials segment		119.0		128.6		119.5	$	135.7
Construction Technologies segment		40.6		53.9		49.5	$	39.3
Energy Services segment		25.8		20.0		19.8	$	20.3
Net sales		410.2		427.0		399.5		401.3
Gross profit		112.7		121.1		115.2		111.4
Income from operations		57.6		39.5		67.3		56.5
Income from continuing operations		34.8		22.3		42.5		37.5
Net income attributable to Minerals Technologies Inc. (MTI)		33.9		21.2		41.6		36.7
Basic earnings per share attributable to MTI shareholders:
Income from continuing operations	$	0.97	$	0.61	$	1.19	$	1.05
Loss from discontinued operations		-		-		-		-
Net income	$	0.97	$	0.61	$	1.19	$	1.05
Diluted earnings per share attributable to MTI shareholders:
Income from continuing operations	$	0.97	$	0.60	$	1.18	$	1.04
Loss from discontinued operations		-		-		-		-
Net income	$	0.97	$	0.60	$	1.18	$	1.04
Market price range per share of common stock:
High	$	57.12	$	61.66	$	72.51	$	82.90
Low	$	37.03	$	52.53	$	56.00	$	66.10
Close	$	57.12	$	57.38	$	70.69	$	77.25
Dividends paid per common share	$	0.05	$	0.05	$	0.05	$	0.05

	2015 quarters
	First		Second		Third		Fourth
	(millions of dollars, except per share amounts)
Net sales by segment
Specialty Minerals segment	$	154.0	$	156.5	$	156.5	$	157.6
Refractories segment		73.9		76.4		77.4		68.2
Performance Materials segment		127.9		129.1		126.5		131.3
Construction Technologies segment		38.9		52.1		49.7		39.4
Energy Services segment		58.6		49.3		40.9		33.4
Net sales		453.3		463.4		451.0		429.9
Gross profit		116.6		126.2		118.9		109.3
Income from operations		59.9		52.8		49.9		37.7
Income from continuing operations		36.0		27.5		30.3		17.8
Income (loss) from discontinued operations
Net income attributable to MTI		35.1		26.6		29.2		17.0
Basic earnings per share attributable to MTI shareholders:
Income from continuing operations	$	1.01	$	0.77	$	0.84	$	0.49
Loss from discontinued operations		-		-		-		-
Net income	$	1.01	$	0.77	$	0.84	$	0.49
Diluted earnings per share attributable to MTI shareholders:
Income from continuing operations	$	1.01	$	0.76	$	0.83	$	0.48
Loss from discontinued operations		-		-		-		-
Net income	$	1.01	$	0.76	$	0.83	$	0.48
Market price range per share of common stock:
High	$	74.74	$	74.21	$	68.15	$	61.80
Low	$	59.00	$	66.49	$	46.69	$	45.35
Close	$	70.65	$	69.02	$	50.31	$	45.86
Dividends paid per common share	$	0.05	$	0.05	$	0.05	$	0.05