Condensed Consolidated Statements Of Cash Flows - USD ($) $ in Thousands	6 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Cash Flows From Operating Activities:
Net income	$ 62,139	$ 55,715
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	12,149	9,665
Deferred income taxes and other noncash changes	269	1,130
Stock-based compensation expense	1,353	1,519
Excess tax benefit from stock-based compensation	(411)	(242)
Pension plan activity	(148)	(296)
Changes in operating assets and liabilities:
Receivables	1,731	(1,227)
Inventories	(2,572)	5,635
Other current assets	51	7,033
Accounts payable and accrued liabilities	(115)	4,060
Net cash provided by operating activities	74,446	82,992
Cash Flows From Investing Activities:
Cash paid for acquisition, net of cash acquired	(12)	0
Payments for property additions	(7,362)	(13,069)
Other-net	(379)	(945)
Net cash used in investing activities	(7,753)	(14,014)
Cash Flows From Financing Activities:
Payment of dividends (including special dividend payment, 2016-$136,677; 2015-$0)	(163,139)	(24,611)
Excess tax benefit from stock-based compensation	411	242
Increase in cash overdraft balance	974	0
Net cash used in financing activities	(161,754)	(24,369)
Net change in cash and equivalents	(95,061)	44,609
Cash and equivalents at beginning of year	182,202	211,539
Cash and equivalents at end of period	87,141	256,148
Supplemental Disclosure of Operating Cash Flows:
Cash paid during the period for income taxes	$ 33,600	$ 19,472