Condensed Statements of Consolidated Income (Unaudited) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2012	Dec. 31, 2011
Income Statement [Abstract]
Net Sales	$ 589,517	$ 570,397	$ 1,200,036	$ 1,149,971
Cost of Sales	426,598	414,928	872,584	835,798
Gross Profit	162,919	155,469	327,452	314,173
Selling, Distribution and Administrative, including depreciation	122,350	122,134	242,565	237,571
Operating Income	40,569	33,335	84,887	76,602
Interest Expense, net	15	10	40	57
Other (Income) Expense, net	(427)	778	(886)	2,710
Income Before Income Taxes	40,981	32,547	85,733	73,835
Income Tax Expense	13,938	11,612	29,158	26,518
Net Income	$ 27,043	$ 20,935	$ 56,575	$ 47,317
Net Income Per Share - Basic	$ 0.64	$ 0.50	$ 1.35	$ 1.12
Net Income Per Share - Diluted	$ 0.64	$ 0.49	$ 1.33	$ 1.11
Cash dividends per common share	$ 0.21	$ 0.19	$ 0.42	$ 0.38
Weighted average common shares outstanding for basic computation	42,052	41,965	42,009	42,181
Dilutive effect of potential common shares	442	669	477	620
Weighted average common shares outstanding for diluted computation	42,494	42,634	42,486	42,801