Condensed Consolidated Statements Of Cash Flows (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Cash Flows From Operating Activities:
Net income	$ 83,772	$ 69,853
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	15,124	15,158
Deferred income taxes and other noncash changes	(652)	4,364
Stock-based compensation expense	2,211	1,991
Loss (gain) on sale of property	318	(16)
Pension plan activity	(45)	(1,095)
Changes in operating assets and liabilities:
Receivables	(19,463)	(22,869)
Inventories	18,196	11,601
Other current assets	(5,796)	1,088
Accounts payable and accrued liabilities	1,243	5,088
Net cash provided by operating activities	94,908	85,163
Cash Flows From Investing Activities:
Payments on property additions	(19,125)	(12,178)
Proceeds from sale of property	1,099	385
Other-net	(788)	(913)
Net cash used in investing activities	(18,814)	(12,706)
Cash Flows From Financing Activities:
Purchase of treasury stock	(609)	(8,315)
Payment of dividends	(167,134)	(28,641)
Excess tax benefit from stock-based compensation	624	193
Net cash used in financing activities	(167,119)	(36,763)
Net change in cash and equivalents	(91,025)	35,694
Cash and equivalents at beginning of year	191,636	132,266
Cash and equivalents at end of period	100,611	167,960
Supplemental Disclosure of Operating Cash Flows:
Cash paid during the period for income taxes	$ 47,416	$ 30,187