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Consolidated Balance Sheets (Parentheticals) - $ / shares
Jun. 30, 2022
Dec. 31, 2021
Statement of Financial Position [Abstract]    
Common Stock, Par Value (in usd per share) $ 0.01 $ 0.01
Common Stock, Shares Authorized (in shares) 500,000,000 500,000,000
Common Stock, Issued (in shares) 191,400,910 203,531,320
Common Stock, Outstanding (in shares) 191,400,910 203,531,320
Preferred Stock, Authorized (in shares) 15,000,000 15,000,000
Preferred Stock, Issued (in shares) 0 0
Preferred Stock, Outstanding (in shares) 0 0