CONSOLIDATED CONDENSED STATEMENTS OF STOCKHOLDERS' EQUITY - USD ($) shares in Millions, $ in Millions | Total | Common Stock | Treasury Stock | Additional Paid-in Capital | Retained Earnings | Total Accumulated Other Comprehensive Loss |
Beginning balance (in shares) at Dec. 31, 2018 | | 215.2 | 7.5 | | | |
Beginning balance at Dec. 31, 2018 | $ 3,140.4 | $ 215.2 | $ (1,015.4) | $ 1,384.4 | $ 2,694.7 | $ (138.5) |
Increase (Decrease) in Stockholders' Equity | | | | | | |
Net income (loss) | 249.7 | | | | 249.7 | |
Other comprehensive income (loss), net of tax | (2.7) | | | | | (2.7) |
Common stock issued under equity plans (in shares) | | 0.8 | | | | |
Common stock issued under equity plans | 45 | $ 0.8 | | 44.2 | | |
Stock-based compensation expense | 20.8 | | | 20.8 | | |
Purchases of treasury stock (in shares) | | | 0.1 | | | |
Purchases of treasury stock | (5.7) | | $ (5.7) | | | |
Ending balance (in shares) at Mar. 31, 2019 | | 216 | 7.6 | | | |
Ending balance at Mar. 31, 2019 | 3,447.5 | $ 216 | $ (1,021.1) | 1,449.4 | 2,944.4 | (141.2) |
Beginning balance (in shares) at Dec. 31, 2018 | | 215.2 | 7.5 | | | |
Beginning balance at Dec. 31, 2018 | 3,140.4 | $ 215.2 | $ (1,015.4) | 1,384.4 | 2,694.7 | (138.5) |
Increase (Decrease) in Stockholders' Equity | | | | | | |
Net income (loss) | 766.7 | | | | | |
Other comprehensive income (loss), net of tax | (17.3) | | | | | |
Ending balance (in shares) at Sep. 30, 2019 | | 217.5 | 9 | | | |
Ending balance at Sep. 30, 2019 | 3,814.8 | $ 217.5 | $ (1,278.7) | 1,570.4 | 3,461.4 | (155.8) |
Beginning balance (in shares) at Mar. 31, 2019 | | 216 | 7.6 | | | |
Beginning balance at Mar. 31, 2019 | 3,447.5 | $ 216 | $ (1,021.1) | 1,449.4 | 2,944.4 | (141.2) |
Increase (Decrease) in Stockholders' Equity | | | | | | |
Net income (loss) | 242.3 | | | | 242.3 | |
Other comprehensive income (loss), net of tax | 3 | | | | | 3 |
Common stock issued under equity plans (in shares) | | 0.9 | | | | |
Common stock issued under equity plans | 41.5 | $ 0.9 | | 40.6 | | |
Stock-based compensation expense | 22.3 | | | 22.3 | | |
Purchases of treasury stock (in shares) | | | 1.4 | | | |
Purchases of treasury stock | (256.3) | | $ (256.3) | | | |
Ending balance (in shares) at Jun. 30, 2019 | | 216.9 | 9 | | | |
Ending balance at Jun. 30, 2019 | 3,500.3 | $ 216.9 | $ (1,277.4) | 1,512.3 | 3,186.7 | (138.2) |
Increase (Decrease) in Stockholders' Equity | | | | | | |
Net income (loss) | 274.7 | | | | 274.7 | |
Other comprehensive income (loss), net of tax | (17.6) | | | | | (17.6) |
Common stock issued under equity plans (in shares) | | 0.6 | | | | |
Common stock issued under equity plans | 38.9 | $ 0.6 | | 38.3 | | |
Stock-based compensation expense | 19.8 | | | 19.8 | | |
Purchases of treasury stock | (1.3) | | $ (1.3) | | | |
Ending balance (in shares) at Sep. 30, 2019 | | 217.5 | 9 | | | |
Ending balance at Sep. 30, 2019 | 3,814.8 | $ 217.5 | $ (1,278.7) | 1,570.4 | 3,461.4 | (155.8) |
Beginning balance (in shares) at Dec. 31, 2019 | | 218.1 | 9 | | | |
Beginning balance at Dec. 31, 2019 | 4,148.3 | $ 218.1 | $ (1,278.7) | 1,623.3 | 3,741.6 | (156) |
Increase (Decrease) in Stockholders' Equity | | | | | | |
Net income (loss) | 310.6 | | | | 310.6 | |
Other comprehensive income (loss), net of tax | 4 | | | | | 4 |
Common stock issued under equity plans (in shares) | | 0.4 | | | | |
Common stock issued under equity plans | 29.1 | $ 0.4 | | 28.7 | | |
Stock-based compensation expense | 23.9 | | | 23.9 | | |
Purchases of treasury stock (in shares) | | | 3 | | | |
Purchases of treasury stock | (614.8) | | $ (614.8) | | | |
Ending balance (in shares) at Mar. 31, 2020 | | 218.5 | 12 | | | |
Ending balance at Mar. 31, 2020 | 3,901.1 | $ 218.5 | $ (1,893.5) | 1,675.9 | 4,052.2 | (152) |
Beginning balance (in shares) at Dec. 31, 2019 | | 218.1 | 9 | | | |
Beginning balance at Dec. 31, 2019 | 4,148.3 | $ 218.1 | $ (1,278.7) | 1,623.3 | 3,741.6 | (156) |
Increase (Decrease) in Stockholders' Equity | | | | | | |
Net income (loss) | 513.9 | | | | | |
Other comprehensive income (loss), net of tax | (1.9) | | | | | |
Ending balance (in shares) at Sep. 30, 2020 | | 635 | 12.1 | | | |
Ending balance at Sep. 30, 2020 | 4,210.3 | $ 635 | $ (1,903.9) | 1,381.6 | 4,255.5 | (157.9) |
Beginning balance (in shares) at Mar. 31, 2020 | | 218.5 | 12 | | | |
Beginning balance at Mar. 31, 2020 | 3,901.1 | $ 218.5 | $ (1,893.5) | 1,675.9 | 4,052.2 | (152) |
Increase (Decrease) in Stockholders' Equity | | | | | | |
Net income (loss) | (121.9) | | | | (121.9) | |
Other comprehensive income (loss), net of tax | 5.9 | | | | | 5.9 |
Common stock issued under equity plans (in shares) | | 1.2 | | | | |
Common stock issued under equity plans | 38.2 | $ 1.2 | | 37 | | |
Stock-based compensation expense | 24.8 | | | 24.8 | | |
Purchases of treasury stock (in shares) | | | 0.1 | | | |
Purchases of treasury stock | (9) | | $ (9) | | | |
Stock issued to effect stock split (in shares) | | 413.8 | | | | |
Stock issued to effect stock split (Note 1) | 0 | $ 413.8 | | (413.8) | | |
Ending balance (in shares) at Jun. 30, 2020 | | 633.5 | 12.1 | | | |
Ending balance at Jun. 30, 2020 | 3,839.1 | $ 633.5 | $ (1,902.5) | 1,323.9 | 3,930.3 | (146.1) |
Increase (Decrease) in Stockholders' Equity | | | | | | |
Net income (loss) | 325.2 | | | | 325.2 | |
Other comprehensive income (loss), net of tax | (11.8) | | | | | (11.8) |
Common stock issued under equity plans (in shares) | | 1.5 | | | | |
Common stock issued under equity plans | 36.2 | $ 1.5 | | 34.7 | | |
Stock-based compensation expense | 23 | | | 23 | | |
Purchases of treasury stock | (1.4) | | $ (1.4) | | | |
Ending balance (in shares) at Sep. 30, 2020 | | 635 | 12.1 | | | |
Ending balance at Sep. 30, 2020 | $ 4,210.3 | $ 635 | $ (1,903.9) | $ 1,381.6 | $ 4,255.5 | $ (157.9) |