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CONSOLIDATED BALANCE SHEETS (Parenthetical) - $ / shares
Jun. 30, 2022
Dec. 31, 2021
Stockholders' equity:    
Common stock, par value (in dollars per share) $ 0.01 $ 0.01
Common stock, shares authorized (in shares) 125,000,000 125,000,000
Common stock, shares outstanding (in shares) 61,458,790 61,307,428