Quarterly Financial and Market Data (Unaudited) (Tables)

12 Months Ended

Dec. 31, 2017

Quarterly Financial Information Disclosure [Abstract]

Schedule of Quarterly Financial and Market Data

Quarterly financial and market data for the years ended December 31, 2017 and 2016 were:

	First			Second			Third			Fourth
(In millions, except per share data)	Quarter			Quarter			Quarter			Quarter
2017
Net sales	$	478.8		$	491.3		$	491.5		$		511.7
Gross margin		134.1			139.9			135.6				142.2
Operating income		78.6			89.7			89.1				93.2
Net income		64.6			61.6			69.7				88.1
Net income per common share:
Basic	$	0.71		$	0.68		$	0.77		$		0.97
Diluted	$		0.70	$		0.67	$	0.76		$		0.96
Market price:
High	$	55.91		$	54.93		$		58.24	$	63.93
Low	$	49.77		$		49.20	$		50.50	$	57.43
2016
Net sales	$	497.7		$	522.6		$	500.5		$	483.5
Gross margin			143.0		150.3			135.7			135.6
Operating income		83.9			100.1			89.1				87.0
Net income			56.0		66.1			68.2			59.5
Net income per common share:
Basic	$		0.60	$	0.71		$	0.74		$	0.65
Diluted	$	0.59		$		0.70	$	0.72		$	0.64
Market price:
High	$		45.40	$	46.26		$	45.68		$	54.97
Low	$	38.38		$	39.15		$	40.82		$	42.04