CONSOLIDATED STATEMENTS OF EARNINGS (USD $) In Thousands, except Per Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
CONSOLIDATED STATEMENTS OF EARNINGS
Net sales	$ 2,097,716	$ 2,016,742	$ 1,854,513
Cost of sales	1,438,973	1,359,795	1,248,248
Gross profit	658,743	656,947	606,265
Research and development costs	(59,712)	(62,115)	(54,131)
Selling expenses	(125,201)	(119,438)	(111,773)
General and administrative expenses	(312,384)	(288,540)	(273,676)
Operating income	161,446	186,854	166,685
Interest expense	(26,329)	(20,834)	(22,107)
Other income, net	245	862	575
Earnings before income taxes	135,362	166,882	145,153
Provision for income taxes	43,073	48,262	47,269
Earnings from continuing operations	92,289	118,620	97,884
Discontinued operations, net of taxes
Earnings from discontinued operations	3,043	7,769	4,296
Gain on divestiture	18,512	0	0
Earnings from discontinued operations	21,555	7,769	4,296
Net earnings	$ 113,844	$ 126,389	$ 102,180
Basic earnings per share
Earnings from continuing operations	$ 1.98	$ 2.56	$ 2.14
Earnings from discontinued operations	$ 0.46	$ 0.17	$ 0.09
Earnings Per Share, Basic, Total	$ 2.44	$ 2.73	$ 2.23
Diluted earnings per share
Earnings from continuing operations	$ 1.95	$ 2.52	$ 2.12
Earnings from discontinued operations	$ 0.45	$ 0.17	$ 0.09
Earnings Per Share, Diluted, Total	$ 2.40	$ 2.69	$ 2.21
Dividends per share	$ 0.35	$ 0.32	$ 0.32
Weighted average shares outstanding:
Basic weighted-average shares outstanding	46,743	46,372	45,823
Diluted weighted-average shares outstanding	47,412	47,013	46,322