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CONSOLIDATED STATEMENTS OF EQUITY - USD ($)
shares in Thousands, $ in Millions
Common Stock and Additional Paid in Capital
Retained Earnings
Accumulated Other Comprehensive Income (Loss)
Non-controlling Interests
Total
Balance at Dec. 31, 2018 $ 136.4 $ 4,637.9 $ (102.7) $ 7.9 $ 4,679.5
Balance (in shares) at Dec. 31, 2018 66,882        
Increase (Decrease) in Stockholders' Equity          
Net income   701.5   4.6 706.1
Other comprehensive income (loss)     (2.4)   (2.4)
Noncontrolling interest purchased       (0.4) (0.4)
Dividend to noncontrolling interest holder       (4.6) (4.6)
Stock-based compensation, net $ 35.0       35.0
Stock-based compensation, net (in shares) 545        
Stock options exercised $ 0.8       0.8
Stock options exercised (in shares) 20        
Repurchase of common shares $ (50.0)       $ (50.0)
Repurchase of common shares (in shares) (593)       600
Cash dividends - $2.20 and $2.50 and $2.75 per share for the year ended December 31, 2019 and 2020 and 2021, respectively   (149.9)     $ (149.9)
Balance at Dec. 31, 2019 $ 122.2 5,189.5 (105.1) 7.5 5,214.1
Balance (in shares) at Dec. 31, 2019 66,854        
Increase (Decrease) in Stockholders' Equity          
Net income   369.1   3.3 372.4
Other comprehensive income (loss)     27.2   27.2
Noncontrolling interest purchased $ (5.5)     (1.1) (6.6)
Dividend to noncontrolling interest holder       (2.4) (2.4)
Stock-based compensation, net $ 19.1       19.1
Stock-based compensation, net (in shares) 414        
Stock options exercised $ 0.3       0.3
Stock options exercised (in shares) 6        
Repurchase of common shares $ (136.0) (201.3)     $ (337.3)
Repurchase of common shares (in shares) (3,674)       3,700
Cash dividends - $2.20 and $2.50 and $2.75 per share for the year ended December 31, 2019 and 2020 and 2021, respectively   (164.1)     $ (164.1)
Balance at Dec. 31, 2020 $ 0.1 5,193.2 (77.9) 7.3 $ 5,122.7
Balance (in shares) at Dec. 31, 2020 63,600       63,600
Increase (Decrease) in Stockholders' Equity          
Net income   1,413.0   4.4 $ 1,417.4
Other comprehensive income (loss)     9.0   9.0
Dividend to noncontrolling interest holder       (4.5) (4.5)
Stock-based compensation, net $ 49.6       49.6
Stock-based compensation, net (in shares) 313        
Repurchase of common shares $ (49.6) (273.9)     $ (323.5)
Repurchase of common shares (in shares) (2,107)       2,100
Cash dividends - $2.20 and $2.50 and $2.75 per share for the year ended December 31, 2019 and 2020 and 2021, respectively   (177.0)     $ (177.0)
Balance at Dec. 31, 2021 $ 0.1 $ 6,155.3 $ (68.9) $ 7.2 $ 6,093.7
Balance (in shares) at Dec. 31, 2021 61,806       61,806