Condensed Statements of Consolidated Income (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2016	Dec. 31, 2015
Income Statement [Abstract]
Net Sales	$ 608,123	$ 610,346	$ 1,232,971	$ 1,252,250
Cost of Sales	435,667	437,179	882,185	898,071
Gross Profit	172,456	173,167	350,786	354,179
Selling, Distribution and Administrative, including depreciation	134,800	134,805	269,912	274,791
Operating Income	37,656	38,362	80,874	79,388
Interest Expense, net	2,100	2,158	4,246	4,345
Other (Income) Expense, net	(211)	55	(609)	1,059
Income Before Income Taxes	35,767	36,149	77,237	73,984
Income Tax Expense	11,682	12,202	25,781	25,746
Net Income	$ 24,085	$ 23,947	$ 51,456	$ 48,238
Net Income Per Share - Basic	$ 0.62	$ 0.61	$ 1.32	$ 1.22
Net Income Per Share - Diluted	0.61	0.61	1.31	1.22
Cash dividends per common share	$ 0.28	$ 0.27	$ 0.56	$ 0.54
Weighted average common shares outstanding for basic computation	38,985	39,262	39,015	39,437
Dilutive effect of potential common shares	386	223	337	224
Weighted average common shares outstanding for diluted computation	39,371	39,485	39,352	39,661