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Consolidated Balance Sheets (Parenthetical) - $ / shares
Mar. 30, 2019
Mar. 31, 2018
Statement Of Financial Position [Abstract]    
Common stock, par value $ 0.0277 $ 0.0277
Common stock, shares authorized 115,000,000 115,000,000
Common stock, shares issued 56,657,000  
Shares subject to restriction 290,000