Condensed Consolidated Statements Of Income - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Sep. 30, 2017	Sep. 30, 2016
Income Statement [Abstract]
Net Sales	$ 298,916	$ 291,361
Cost of Sales	223,439	210,727
Gross Profit	75,477	80,634
Selling, General and Administrative Expenses	31,151	29,880
Operating Income	44,326	50,754
Other, Net	358	87
Income Before Income Taxes	44,684	50,841
Taxes Based on Income	15,298	17,441
Net Income	$ 29,386	$ 33,400
Net Income Per Common Share:
Basic and Diluted (in dollars per share)	$ 1.07	$ 1.22
Cash Dividends Per Common Share (in dollars per share)	$ 0.55	$ 0.50
Weighted Average Common Shares Outstanding:
Basic (in shares)	27,396	27,363
Diluted (in shares)	27,451	27,430