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Stockholders' Equity (Narrative) (Details) - USD ($) $ / shares in Units, $ in Thousands		3 Months Ended	6 Months Ended
	Dec. 17, 2020	Nov. 28, 2020	Nov. 28, 2020	Nov. 23, 2019	Oct. 22, 2020	Jul. 31, 2015
Stockholders' Equity Disclosure [Line Items]
Purchase of common stock (in shares)		0	0
Dividends payable (per share)					$ 0.14
Cash dividends paid			$ 9,059	$ 8,581
Subsequent Event [Member]
Stockholders' Equity Disclosure [Line Items]
Cash dividends paid	$ 4,500
July 2015 Program [Member]
Stockholders' Equity Disclosure [Line Items]
Amount authorized under a stock repurchase program						$ 150,000
Stock repurchase plan, remaining amount		$ 85,100	$ 85,100

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Stockholders' Equity Disclosure [Line Items]

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