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Consolidated Statements of Stockholders' Equity (Unaudited) (Parenthetical) - USD ($)
$ in Thousands
3 Months Ended
Sep. 27, 2018
Sep. 28, 2017
Statement of Stockholders' Equity [Abstract]    
Cash dividends per common share $ 2.55 $ 2.50
Pension liability amortization income tax expense $ (66) $ (108)