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Consolidated Balance Sheets (Parenthetical) - $ / shares
Dec. 31, 2020
Dec. 31, 2019
Statement of Financial Position [Abstract]    
Ordinary Shares, par value $ 0.01 $ 0.01
Ordinary Shares, Authorized 500,000,000 500,000,000
Ordinary Shares, Issued 138,168,000 139,110,000
Ordinary Shares, outstanding 138,168,000 139,110,000