Condensed Statements of Consolidated Income (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Mar. 31, 2025	Mar. 31, 2024	Mar. 31, 2025	Mar. 31, 2024
Income Statement [Abstract]
Net sales	$ 1,166,749	$ 1,146,390	$ 3,338,694	$ 3,318,731
Cost of sales	811,459	808,144	2,330,272	2,338,313
Gross profit	355,290	338,246	1,008,422	980,418
Selling, distribution and administrative expense, including depreciation	225,888	217,040	644,978	623,938
Operating income	129,402	121,206	363,444	356,480
Interest expense (income), net	853	265	(710)	3,502
Other expense (income), net	1,267	(1,724)	(1,769)	(4,217)
Income before income taxes	127,282	122,665	365,923	357,195
Income tax expense	27,483	25,448	80,771	74,924
Net income	$ 99,799	$ 97,217	$ 285,152	$ 282,271
Net income per share - basic	$ 2.60	$ 2.51	$ 7.43	$ 7.29
Net income per share - diluted	$ 2.57	$ 2.48	$ 7.33	$ 7.18
Weighted average common shares outstanding for basic computation	38,322	38,675	38,383	38,707
Dilutive effect of potential common shares	525	577	537	584
Weighted average common shares outstanding for diluted computation	38,847	39,252	38,920	39,291