Quarterly report pursuant to Section 13 or 15(d)

Condensed Consolidated Balance Sheets (Parenthetical)

v3.21.2
Condensed Consolidated Balance Sheets (Parenthetical) - USD ($)
$ in Millions
Jun. 30, 2021
Dec. 31, 2020
Condensed Consolidated Balance Sheets [Abstract]    
Allowance for accounts with joint venture owners $ 0.0 $ 0.0
Allowance for value added tax and other receivables $ 5.6 $ 2.3
Preferred stock, par value $ 25 $ 25
Preferred stock, shares authorized 500,000 500,000
Preferred stock, shares issued 0 0
Common stock, par value $ 0.10 $ 0.10
Common stock, shares authorized 100,000,000 100,000,000
Common stock, shares issued 69,420,003 67,897,530
Common stock, shares outstanding 58,585,062 57,531,154
Treasury stock, shares 10,834,941 10,366,376