Condensed Consolidated Statements Of Income - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2016	Dec. 31, 2015
Income Statement [Abstract]
Net Sales	$ 326,773	$ 324,769	$ 618,134	$ 618,854
Cost of Sales	233,034	241,175	443,761	467,293
Gross Profit	93,739	83,594	174,373	151,561
Selling, General and Administrative Expenses	34,381	31,479	64,261	57,558
Operating Income	59,358	52,115	110,112	94,003
Other, Net	206	(205)	293	(83)
Income Before Income Taxes	59,564	51,910	110,405	93,920
Taxes Based on Income	20,608	17,399	38,049	31,781
Net Income	$ 38,956	$ 34,511	$ 72,356	$ 62,139
Net Income Per Common Share:
Basic (in dollars per share)	$ 1.42	$ 1.26	$ 2.64	$ 2.27
Diluted (in dollars per share)	1.42	1.25	2.63	2.26
Cash Dividends Per Common Share (in dollars per share)	$ 0.55	$ 5.50	$ 1.05	$ 5.96
Weighted Average Common Shares Outstanding:
Basic (in shares)	27,366	27,328	27,364	27,324
Diluted (in shares)	27,441	27,374	27,435	27,359