Quarterly Financial Data Quarterly Financial Data (Tables)

12 Months Ended

Dec. 31, 2013

Dec. 31, 2012

Quarterly Financial Data [Abstract]

Schedule of Quarterly Financial Information [Table Text Block]

The following tables present the unaudited financial data for each of the interim periods in 2013 and 2012.

	Quarter Ended 31-Mar		Quarter Ended 30-Jun		Quarter Ended 30-Sep			Quarter Ended 31-Dec
2013
Net sales	$	337.4	$	328.9	$	319.9		$	311.3
Cost of products sold, excluding depreciation, amortization and other items	263.6		261.5		259.5			254.3
Unrealized losses (gains) on derivative instruments	0.7		4.2		(1.5		)	(4.1		)
Gross Profit	73.1		63.2		61.9			61.1
Operating income	50.0		40.1		41.6			41.6
Net income	$	33.5	$	18.6	$	25.4		$	27.3
Earnings per common share, Basic:
Net income per share	$	1.75	$	0.99	$	1.37		$	1.48
Earnings per common share, Diluted:
Net income per share	$	1.73	$	0.98	$	1.34		$	1.44
Common stock market price (based on daily closing price):
High	$	65.03	$	65.44	$	71.96		$	73.03
Low	$	60.77	$	58.75	$	62.31		$	65.23

	Quarter Ended 31-Mar			Quarter Ended 30-Jun		Quarter Ended 30-Sep			Quarter Ended 31-Dec
2012
Net sales	$	365.4		$	345.2	$	335.5		$	314.0
Cost of products sold, excluding depreciation, amortization and other items	298.1			284.4		268.9			264.8
Unrealized (gains) losses on derivative instruments	(3.1		)	0.1		(12.3		)	0.1
Gross Profit	70.4			60.7		78.9			49.1
Operating income	46.2			39.6		56.2			23.9
Net income	$	26.5		$	21.0	$	29.2		$	9.1
Earnings per common share, Basic:
Net income per share	$	1.39		$	1.10	$	1.52		$	0.48
Earnings per common share, Diluted:
Net income per share	$	1.38		$	1.09	$	1.51		$	0.47
Common stock market price (based on daily closing price):
High	$	52.46		$	52.57	$	59.15		$	61.75
Low	$	46.82		$	46.62	$	49.42		$	56.27