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Accumulated Other Comprehensive Loss - Changes in Accumulated Other Comprehensive Loss (Detail) - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended
Dec. 27, 2018
Dec. 28, 2017
Dec. 27, 2018
Dec. 28, 2017
Accumulated Other Comprehensive Income (Loss) [Line Items]        
Balance at beginning of period     $ (3,181)  
Other comprehensive income, net of tax $ 197 $ 170 394 $ 341
Balance at end of period (2,787) (4,063) (2,787) (4,063)
Accumulated Other Comprehensive Loss [Member]        
Accumulated Other Comprehensive Income (Loss) [Line Items]        
Balance at beginning of period     (3,181) (4,404)
Other comprehensive income before reclassifications     0 0
Amounts reclassified from accumulated other comprehensive loss     526 560
Tax effect     (132) (219)
Other comprehensive income, net of tax     394 341
Balance at end of period $ (2,787) $ (4,063) $ (2,787) $ (4,063)