Condensed Consolidated Statements Of Cash Flows - USD ($) $ in Thousands	3 Months Ended
	Sep. 30, 2017	Sep. 30, 2016
Cash Flows From Operating Activities:
Net income	$ 29,386	$ 33,400
Impacts of noncash items:
Depreciation and amortization	6,416	5,986
Change in acquisition-related contingent consideration	488	0
Deferred income taxes and other changes	(1,622)	(746)
Stock-based compensation expense	1,163	1,145
Pension plan activity	(134)	(61)
Changes in operating assets and liabilities:
Receivables	(13,026)	(4,679)
Inventories	(8,890)	(13,668)
Other current assets	5,971	3,573
Accounts payable and accrued liabilities	19,162	20,558
Net cash provided by operating activities	38,914	45,508
Cash Flows From Investing Activities:
Cash paid for acquisitions, net of cash acquired	(318)	0
Payments for property additions	(8,494)	(4,144)
Other-net	8	92
Net cash used in investing activities	(8,804)	(4,052)
Cash Flows From Financing Activities:
Payment of dividends	(15,092)	(13,710)
Purchase of treasury stock	(849)	(8)
Tax withholdings for stock-based compensation	(95)	(71)
Net cash used in financing activities	(16,036)	(13,789)
Net change in cash and equivalents	14,074	27,667
Cash and equivalents at beginning of year	143,104	118,080
Cash and equivalents at end of period	157,178	145,747
Supplemental Disclosure of Operating Cash Flows:
Cash paid during the period for income taxes	$ 620	$ 470