Condensed Statements of Consolidated Income (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Mar. 31, 2018	Mar. 31, 2017	Mar. 31, 2018	Mar. 31, 2017
Income Statement [Abstract]
Net Sales	$ 827,665	$ 679,304	$ 2,175,553	$ 1,912,275
Cost of Sales	588,141	488,502	1,555,245	1,370,687
Gross Profit	239,524	190,802	620,308	541,588
Selling, Distribution and Administrative, including depreciation	183,080	145,134	465,312	414,645
Operating Income	56,444	45,668	154,996	126,943
Interest Expense, net	8,216	2,165	12,521	6,411
Other (Income) Expense, net	(1,291)	154	(2,022)	(54)
Income Before Income Taxes	49,519	43,349	144,497	120,586
Income Tax Expense	12,927	13,855	43,234	39,636
Net Income	$ 36,592	$ 29,494	$ 101,263	$ 80,950
Net Income Per Share - Basic	$ 0.95	$ 0.76	$ 2.61	$ 2.08
Net Income Per Share - Diluted	0.93	0.75	2.58	2.06
Cash dividends per common share	$ 0.30	$ 0.29	$ 0.88	$ 0.85
Weighted average common shares outstanding for basic computation	38,674	38,999	38,775	39,009
Dilutive effect of potential common shares	612	463	497	375
Weighted average common shares outstanding for diluted computation	39,286	39,462	39,272	39,384