CONDENSED CONSOLIDATED STATEMENTS OF EARNINGS (UNAUDITED) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended
	Mar. 31, 2012	Mar. 31, 2011
CONDENSED CONSOLIDATED STATEMENTS OF EARNINGS
Net sales	$ 501,661	$ 452,931
Cost of sales	342,387	307,028
Gross profit	159,274	145,903
Research and development expenses	15,347	13,597
Selling expenses	32,481	29,223
General and administrative expenses	75,887	63,892
Operating income	35,559	39,191
Interest expense	(6,482)	(5,121)
Other income, net	102	52
Earnings from continuing operations before income taxes	29,179	34,122
Provision for income taxes	9,337	11,155
Earnings from continuing operations	19,842	22,967
Discontinued operations, net of taxes
Earnings from discontinued operations	3,059	1,549
Gain on divestiture	18,411	0
Earnings from discontinued operations	21,470	1,549
Net earnings	$ 41,312	$ 24,516
Basic earnings per share
Earnings from continuing operations	$ 0.42	$ 0.50
Earnings from discontinued operations	$ 0.46	$ 0.03
Earnings Per Share, Basic, Total	$ 0.88	$ 0.53
Diluted earnings per share
Earnings from continuing operations	$ 0.42	$ 0.49
Earnings from discontinued operations	$ 0.45	$ 0.03
Earnings Per Share, Diluted, Total	$ 0.87	$ 0.52
Dividends per share	$ 0.08	$ 0.08
Weighted average shares outstanding:
Basic weighted-average shares outstanding	46,687	46,195
Diluted weighted-average shares outstanding	47,571	46,974