Consolidated Statements Of Income (USD $) In Thousands, except Per Share data, unless otherwise specified	12 Months Ended
	Jun. 30, 2012		Jun. 30, 2011		Jun. 30, 2010
Consolidated Statements Of Income [Abstract]
Net Sales	$ 1,131,359	[1]	$ 1,089,946	[1]	$ 1,056,608	[1]
Cost of Sales	891,248		847,517		786,276
Gross Margin	240,111		242,429		270,332
Selling, General and Administrative Expenses	96,824		95,425		93,821
Restructuring and Impairment Charges	0		0		2,312
Operating Income	143,287	[2]	147,004	[2]	174,199	[2]
Other Income:
Other income - Continued Dumping and Subsidy Offset Act	2,701		14,388		893
Interest income and other - net	43		114		46
Income Before Income Taxes	146,031		161,506		175,138
Taxes Based on Income	50,223		55,142		60,169
Net Income	$ 95,808		$ 106,364		$ 114,969
Net Income Per Common Share:
Basic	$ 3.51		$ 3.84		$ 4.08
Diluted	$ 3.51	[3]	$ 3.84	[3]	$ 4.07
Weighted Average Common Shares Outstanding:
Basic	27,233		27,664		28,144
Diluted	27,265		27,689		28,174

[1] Net sales and long-lived assets are predominantly domestic.

[2] Operating income represents net sales less operating expenses related to the business segments. All intercompany transactions have been eliminated, and intersegment revenues are not significant.

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