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Condensed Consolidated Balance Sheets (Parenthetical) - $ / shares
Mar. 28, 2020
Dec. 31, 2019
Statement of Financial Position [Abstract]    
Common shares, par value $ 1 $ 1
Common shares, authorized 48,000,000 48,000,000
Common shares, issued 37,677,601 37,766,878
Common shares, outstanding 37,678,000 37,767,000
Common shares held in treasury 19,847,000 19,737,000
Redeemable Shares 5,236,159 5,146,882