Condensed Consolidated Statements Of Cash Flows - USD ($) $ in Thousands	9 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Cash Flows From Operating Activities:
Net income	$ 86,827	$ 91,150
Impacts of noncash items:
Depreciation and amortization	18,350	18,118
Change in acquisition-related contingent consideration	682	0
Deferred income taxes and other changes	(3,576)	926
Stock-based compensation expense	3,110	2,140
Excess tax benefit from stock-based compensation	(957)	(737)
Pension plan activity	(183)	(222)
Changes in operating assets and liabilities:
Receivables	(6,934)	(7,749)
Inventories	(3,107)	2,049
Other current assets	(6,527)	(1,131)
Accounts payable and accrued liabilities	17,749	(3,973)
Net cash provided by operating activities	105,434	100,571
Cash Flows From Investing Activities:
Cash paid for acquisitions, net of cash acquired	(34,997)	(12)
Payments for property additions	(20,059)	(11,607)
Other-net	88	(472)
Net cash used in investing activities	(54,968)	(12,091)
Cash Flows From Financing Activities:
Payment of dividends (including special dividend payment, 2017-$0; 2016-$136,677)	(43,886)	(176,837)
Purchase of treasury stock	(866)	(155)
Excess tax benefit from stock-based compensation	957	737
Net cash used in financing activities	(43,795)	(176,255)
Net change in cash and equivalents	6,671	(87,775)
Cash and equivalents at beginning of year	118,080	182,202
Cash and equivalents at end of period	124,751	94,427
Supplemental Disclosure of Operating Cash Flows:
Cash paid during the period for income taxes	$ 55,913	$ 48,514