Condensed Consolidated Statements Of Income - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2018	Dec. 31, 2017
Income Statement [Abstract]
Net Sales	$ 349,581	$ 319,665	$ 666,235	$ 618,581
Cost of Sales	258,189	235,726	493,644	459,167
Gross Profit	91,392	83,939	172,591	159,414
Selling, General and Administrative Expenses	39,842	36,319	71,921	67,130
Change in Contingent Consideration	(9,605)	505	(9,605)	993
Operating Income	61,155	47,115	110,275	91,291
Other, Net	1,039	562	2,353	1,070
Income Before Income Taxes	62,194	47,677	112,628	92,361
Taxes Based on Income	14,287	1,757	25,693	17,055
Net Income	$ 47,907	$ 45,920	$ 86,935	$ 75,306
Net Income Per Common Share:
Basic (in dollars per share)	$ 1.74	$ 1.67	$ 3.16	$ 2.74
Diluted (in dollars per share)	1.73	1.67	3.15	2.74
Cash Dividends Per Common Share (in dollars per share)	$ 0.65	$ 0.60	$ 1.25	$ 1.15
Weighted Average Common Shares Outstanding:
Basic (in shares)	27,435	27,396	27,429	27,396
Diluted (in shares)	27,566	27,460	27,540	27,456