Quarterly Financial Data (Tables)

12 Months Ended

Dec. 31, 2012

Quarterly Financial Data [Abstract]

Schedule of Quarterly Data

(in millions, except per share amounts)
2012	1st	2nd	3rd	4th
Net sales	$180.1	$191.9	$194.6	$194.3
Gross profit	68.3	78.5	79.7	79.0
Net income	47.0	(33.7)	9.5	8.2
Basic earnings per share	1.50	(1.08)	0.30	0.27
Diluted earnings per share	1.49	(1.08)	0.30	0.26
Cash dividends per share	0.13	0.14	0.14	0.14
Class A Common Stock prices:
High	25.90	24.70	22.78	22.68
Low	22.35	17.15	17.66	20.11
2011
Net sales	$200.0	$189.7	$200.3	$197.4
Gross profit	85.2	73.9	78.1	77.0
Net income	16.7	8.8	16.7	(7.2)
Basic earnings per share	0.54	0.28	0.53	(0.23)
Diluted earnings per share	0.53	0.28	0.53	(0.23)
Cash dividends per share	0.12	0.13	0.13	0.13
Class A Common Stock prices:
High	25.09	27.90	27.68	25.70
Low	21.84	23.54	17.82	17.24
2010
Net sales	$174.5	$185.6	$186.6	$196.3
Gross profit	61.8	69.6	71.9	78.6
Net (loss)/income	5.6	7.9	3.6	20.5
Basic (losses)/earnings per share	0.18	0.25	0.12	0.66
Diluted (losses)/earnings per share	0.18	0.25	0.12	0.66
Cash dividends per share	0.12	0.12	0.12	0.12
Class A Common Stock prices:
High	23.27	25.73	20.89	25.62
Low	18.32	16.00	15.06	18.68