Condensed Consolidated Statements Of Cash Flows (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Sep. 30, 2012	Sep. 30, 2011
Cash Flows From Operating Activities:
Net income	$ 26,662	$ 21,258
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	4,964	5,038
Deferred income taxes and other noncash changes	(1,466)	3,150
Stock-based compensation expense	871	554
Gain on sale of property	(1)	0
Pension plan activity	(15)	(1,040)
Changes in operating assets and liabilities:
Receivables	(23,260)	(21,408)
Inventories	(11,026)	1,637
Other current assets	727	4,762
Accounts payable and accrued liabilities	18,902	3,612
Net cash provided by operating activities	16,358	17,563
Cash Flows From Investing Activities:
Payments on property additions	(5,434)	(4,278)
Proceeds from sale of property	1	0
Other-net	(302)	(394)
Net cash used in investing activities	(5,735)	(4,672)
Cash Flows From Financing Activities:
Purchase of treasury stock	0	(7,890)
Payment of dividends	(9,825)	(9,008)
Excess tax benefit from stock-based compensation	242	5
Net cash used in financing activities	(9,583)	(16,893)
Net change in cash and equivalents	1,040	(4,002)
Cash and equivalents at beginning of year	191,636	132,266
Cash and equivalents at end of period	192,676	128,264
Supplemental Disclosure of Operating Cash Flows:
Cash paid during the period for income taxes	$ 390	$ 728