CONSOLIDATED STATEMENTS OF OPERATIONS (Unaudited) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
CONSOLIDATED STATEMENTS OF OPERATIONS (Unaudited) [Abstract]
Net sales	$ 257,046	$ 264,162	$ 762,338	$ 764,996
Cost of sales	179,819	184,081	539,802	541,291
Gross profit	77,227	80,081	222,536	223,705
Selling, general and administrative expenses	48,811	50,615	145,252	150,813
Litigation charge	0	0	10,650	0
Restructuring and integration expenses	343	1,913	1,069	2,531
Other income, net	268	324	801	766
Operating income	28,341	27,877	66,366	71,127
Other non-operating income (expense), net	(955)	233	(1,061)	(27)
Interest expense	440	403	1,205	1,621
Earnings from continuing operations before taxes	26,946	27,707	64,100	69,479
Provision for income taxes	9,140	10,021	22,718	25,827
Earnings from continuing operations	17,806	17,686	41,382	43,652
Loss from discontinued operations, net of income taxes	(8,240)	(389)	(9,451)	(1,138)
Net earnings	$ 9,566	$ 17,297	$ 31,931	$ 42,514
Net earnings per common share - Basic:
Earnings from continuing operations (in dollars per share)	$ 0.78	$ 0.77	$ 1.81	$ 1.90
Discontinued operations (in dollars per share)	$ (0.36)	$ (0.02)	$ (0.42)	$ (0.05)
Net earnings per common share - Basic (in dollars per share)	$ 0.42	$ 0.75	$ 1.39	$ 1.85
Net earnings per common share - Diluted:
Earnings from continuing operations (in dollars per share)	$ 0.77	$ 0.76	$ 1.79	$ 1.88
Discontinued operations (in dollars per share)	$ (0.36)	$ (0.02)	$ (0.41)	$ (0.05)
Net earnings per common share - Diluted (in dollars per share)	$ 0.41	$ 0.74	$ 1.38	$ 1.83
Dividends declared per share (in dollars per share)	$ 0.13	$ 0.11	$ 0.39	$ 0.33
Average number of common shares (in shares)	22,884,939	22,999,832	22,901,832	22,945,424
Average number of common shares and dilutive common shares (in shares)	23,169,173	23,239,009	23,180,842	23,179,187