Condensed Consolidated Statements Of Cash Flows - USD ($) $ in Thousands	3 Months Ended
	Sep. 30, 2018	Sep. 30, 2017
Cash Flows From Operating Activities:
Net income	$ 39,028	$ 29,386
Impacts of noncash items:
Depreciation and amortization	6,944	6,416
Change in acquisition-related contingent consideration	0	488
Deferred income taxes and other changes	879	(1,622)
Stock-based compensation expense	1,531	1,163
Pension plan activity	(309)	(134)
Changes in operating assets and liabilities:
Receivables	(10,325)	(13,026)
Inventories	(11,961)	(8,890)
Other current assets	2,763	5,971
Accounts payable and accrued liabilities	12,310	19,162
Net cash provided by operating activities	40,860	38,914
Cash Flows From Investing Activities:
Cash paid for acquisitions, net of cash acquired	0	(318)
Payments for property additions	(9,740)	(8,494)
Other-net	(71)	8
Net cash used in investing activities	(9,811)	(8,804)
Cash Flows From Financing Activities:
Payment of dividends	(16,495)	(15,092)
Purchase of treasury stock	(1,593)	(849)
Tax withholdings for stock-based compensation	(778)	(95)
Net cash used in financing activities	(18,866)	(16,036)
Net change in cash and equivalents	12,183	14,074
Cash and equivalents at beginning of year	205,752	143,104
Cash and equivalents at end of period	217,935	157,178
Supplemental Disclosure of Operating Cash Flows:
Net cash payments for income taxes	$ 229	$ 620