Consolidated Statements Of Income - USD ($) shares in Thousands, $ in Thousands		12 Months Ended
		Jun. 30, 2015		Jun. 30, 2014		Jun. 30, 2013
Income Statement [Abstract]
Net Sales		$ 1,104,514		$ 1,041,075		$ 1,013,803
Cost of Sales		846,822		792,507		769,096
Gross Margin		257,692		248,568		244,707
Selling, General and Administrative Expenses		102,831		94,801		90,784
Operating Income	[1],[2]	154,861		153,767		153,923
Interest Income and Other-Net		(309)		(488)		(105)
Income From Continuing Operations Before Income Taxes		154,552		153,279		153,818
Taxes Based on Income		52,866		52,293		49,958
Income From Continuing Operations		101,686		100,986		103,860
Discontinued Operations, Net of Tax:
Income from discontinued operations		0		3,058		5,389
Loss on sale of discontinued operations		0		(29,058)		0
Total discontinued operations		0		(26,000)		5,389
Net Income		$ 101,686		$ 74,986		$ 109,249
Income Per Common Share From Continuing Operations:
Basic (in dollars per share)		$ 3.72		$ 3.70		$ 3.80
Diluted (in dollars per share)		3.72	[3]	3.69	[3]	3.79
(Loss) Income Per Common Share From Discontinued Operations:
Basic and diluted (in dollars per share)		0.00		(0.95)		0.20
Net Income Per Common Share:
Basic (in dollars per share)		3.72		2.75		4.00
Diluted (in dollars per share)		$ 3.72	[3]	$ 2.74	[3]	$ 3.99
Weighted Average Common Shares Outstanding:
Basic (in shares)		27,300		27,264		27,252
Diluted (in shares)		27,327		27,308		27,285

[1] All intercompany transactions have been eliminated.

[2] Financial information reflects continuing operations.

[3] Diluted income (loss) per common share amounts are calculated independently for each of the quarters presented. Accordingly, the sum of the quarterly income (loss) per common share amounts may not agree with the fiscal year.