Condensed Consolidated Statements of Earnings - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Net Sales	$ 215,404	$ 219,084	$ 401,144	$ 403,063
Cost of Sales	120,371	123,821	228,030	230,883
Gross Profit	95,033	95,263	173,114	172,180
Operating Expense:
Research and Development Expense	8,404	7,651	16,114	15,132
Selling and Administrative Expense	64,042	64,471	126,159	124,670
Total Operating Expense	72,446	72,122	142,273	139,802
Profit from Operations	22,587	23,141	30,841	32,378
Other Income (Expense):
Interest Income	53	95	103	170
Interest Expense	(419)	(419)	(796)	(905)
Net Foreign Currency Transaction (Losses) Gains	(225)	328	(668)	120
Other Expense, Net	(185)	(89)	(237)	(120)
Total Other Expense, Net	(776)	(85)	(1,598)	(735)
Profit Before Income Taxes	21,811	23,056	29,243	31,643
Income Tax Expense	6,994	7,533	9,400	10,325
Net Earnings	$ 14,817	$ 15,523	$ 19,843	$ 21,318
Net Earnings per Share:
Basic	$ 0.81	$ 0.85	$ 1.09	$ 1.17
Diluted	$ 0.79	$ 0.83	$ 1.06	$ 1.14
Weighted Average Shares Outstanding:
Basic	18,197,431	18,167,054	18,240,027	18,242,240
Diluted	18,672,040	18,675,607	18,724,859	18,776,369
Cash Dividend Declared per Common Share	$ 0.20	$ 0.20	$ 0.40	$ 0.38