Condensed Statements of Consolidated Income (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Sep. 30, 2019	Sep. 30, 2018
Income Statement [Abstract]
Net sales	$ 856,404	$ 864,515
Cost of sales	604,944	612,662
Gross profit	251,460	251,853
Selling, distribution and administrative expense, including depreciation	190,294	185,514
Operating income	61,166	66,339
Interest expense, net	10,059	10,476
Other income, net	0	(239)
Income before income taxes	51,107	56,102
Income tax expense	12,308	7,164
Net income	$ 38,799	$ 48,938
Net income per share - basic	$ 1.00	$ 1.26
Net income per share - diluted	$ 1.00	$ 1.24
Weighted average common shares outstanding for basic computation	38,611	38,714
Dilutive effect of potential common shares	350	650
Weighted average common shares outstanding for diluted computation	38,961	39,364