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Consolidated Statements of Comprehensive Income Consolidated Statements of Comprehensive Income (Parenthetical) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Mar. 25, 2018
Mar. 26, 2017
Mar. 25, 2018
Mar. 26, 2017
Statement of Comprehensive Income [Abstract]        
Tax (expense) benefit on net unrealized gain (loss) on available-for-sale securities $ 0 $ 1,948 $ 0 $ (4,723)