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Dividend Program - Narrative (Detail) - USD ($)
$ / shares in Units, $ in Thousands
6 Months Ended
Dec. 03, 2020
Nov. 01, 2020
Nov. 03, 2019
Dividends [Line Items]      
Cash dividends paid   $ 2,583 $ 2,482
Quarterly Dividend [Member]      
Dividends [Line Items]      
Cash dividends paid   $ 2,600 $ 2,500
Cash dividend payment, per share   $ 0.105 $ 0.10
Subsequent Event [Member] | Quarterly Dividend [Member]      
Dividends [Line Items]      
Cash dividend declared, per share $ 0.11    
Date of payment to shareholders entitled to dividends Jan. 18, 2021    
Date of record of shareholders entitled to dividends Jan. 08, 2021