CONSOLIDATED STATEMENT OF CHANGES IN STOCKHOLDERS' EQUITY - USD ($) shares in Millions, $ in Millions | Total | Common Stock | Additional Paid-in Capital | Retained Earnings | Accumulated Other Comprehensive Income (Loss) | Common Stock in Treasury | Noncontrolling Interest |
Total stockholders' equity, Beginning of Period at Dec. 31, 2017 | $ 1,222.5 | $ 1.3 | $ 1,322 | $ 1,995.9 | $ (239.5) | $ (1,857.7) | $ 0.5 |
Shares oustanding, Beginning of Period (in shares) at Dec. 31, 2017 | | 80.2 | | | | | |
Increase (Decrease) in Stockholders' Equity [Roll Forward] | | | | | | | |
Net income (loss) | 50.3 | | | 50.3 | | | |
Other Comprehensive Income (Loss) – net of tax | 28.8 | | | | 28.8 | | |
Issuance of Common Stock | 15.9 | | 15.9 | | | | |
Issuance of Common Stock (in shares) | | 0.8 | | | | | |
Compensation under Stock-based Plans - net | (21.3) | | (23) | | | 1.7 | |
Compensation under Stock-based Plans - net (in shares) | | 0.1 | | | | | |
Dividends | (7.8) | | 0.2 | (8) | | | |
Acquisition of Treasury Stock (in shares) | | (5.1) | | | | | |
Acquisition of Treasury Stock | (209.5) | | | | | (209.5) | |
Other | | | | 2.6 | (2.6) | | |
Shares outstanding, End of Period (in shares) at Mar. 31, 2018 | | 76 | | | | | |
Total stockholders' equity, End of Period at Mar. 31, 2018 | 1,078.9 | $ 1.3 | 1,315.1 | 2,040.8 | (213.3) | (2,065.5) | 0.5 |
Total stockholders' equity, Beginning of Period at Dec. 31, 2017 | 1,222.5 | $ 1.3 | 1,322 | 1,995.9 | (239.5) | (1,857.7) | 0.5 |
Shares oustanding, Beginning of Period (in shares) at Dec. 31, 2017 | | 80.2 | | | | | |
Increase (Decrease) in Stockholders' Equity [Roll Forward] | | | | | | | |
Net income (loss) | $ 146.7 | | | | | | |
Acquisition of Treasury Stock (in shares) | (8) | | | | | | |
Acquisition of Treasury Stock | $ (325) | | | | | | |
Other | (2.6) | | | | | | |
Shares outstanding, End of Period (in shares) at Sep. 30, 2018 | | 73 | | | | | |
Total stockholders' equity, End of Period at Sep. 30, 2018 | 974.7 | $ 1.3 | 1,338.7 | 2,121.9 | (304.3) | (2,183.5) | 0.6 |
Total stockholders' equity, Beginning of Period at Mar. 31, 2018 | 1,078.9 | $ 1.3 | 1,315.1 | 2,040.8 | (213.3) | (2,065.5) | 0.5 |
Shares oustanding, Beginning of Period (in shares) at Mar. 31, 2018 | | 76 | | | | | |
Increase (Decrease) in Stockholders' Equity [Roll Forward] | | | | | | | |
Net income (loss) | 57.8 | | | 57.8 | | | |
Other Comprehensive Income (Loss) – net of tax | (74.9) | | | | (74.9) | | |
Issuance of Common Stock | 0.3 | | 0.3 | | | | |
Compensation under Stock-based Plans - net | 11.3 | | 11.2 | | | 0.1 | |
Dividends | (7.5) | | 0.2 | (7.7) | | | |
Acquisition of Treasury Stock (in shares) | | (2.9) | | | | | |
Acquisition of Treasury Stock | (117.8) | | | | | (117.8) | |
Shares outstanding, End of Period (in shares) at Jun. 30, 2018 | | 73.1 | | | | | |
Total stockholders' equity, End of Period at Jun. 30, 2018 | 948.1 | $ 1.3 | 1,326.8 | 2,090.9 | (288.2) | (2,183.2) | 0.5 |
Increase (Decrease) in Stockholders' Equity [Roll Forward] | | | | | | | |
Net income (loss) | 38.6 | | | 38.6 | | | |
Other Comprehensive Income (Loss) – net of tax | (16) | | | | (16.1) | | 0.1 |
Issuance of Common Stock | 0.7 | | 0.7 | | | | |
Compensation under Stock-based Plans - net | 10.9 | | 10.9 | | | | |
Dividends | (7.3) | | 0.3 | (7.6) | | | |
Acquisition of Treasury Stock (in shares) | | (0.1) | | | | | |
Acquisition of Treasury Stock | (0.3) | | | | | (0.3) | |
Shares outstanding, End of Period (in shares) at Sep. 30, 2018 | | 73 | | | | | |
Total stockholders' equity, End of Period at Sep. 30, 2018 | $ 974.7 | $ 1.3 | 1,338.7 | 2,121.9 | (304.3) | (2,183.5) | 0.6 |
Increase (Decrease) in Stockholders' Equity [Roll Forward] | | | | | | | |
Acquisition of Treasury Stock (in shares) | (3.4) | | | | | | |
Acquisition of Treasury Stock | $ (100) | | | | | | |
Shares outstanding, End of Period (in shares) at Dec. 31, 2018 | | 69.6 | | | | | |
Total stockholders' equity, End of Period at Dec. 31, 2018 | 861 | $ 0.8 | 797.3 | 749 | (284.8) | (401.8) | 0.5 |
Increase (Decrease) in Stockholders' Equity [Roll Forward] | | | | | | | |
Net income (loss) | (66.6) | | | (66.6) | | | |
Other Comprehensive Income (Loss) – net of tax | (2.3) | | | | (2.3) | | |
Issuance of Common Stock | 21.4 | | 21.4 | | | | |
Issuance of Common Stock (in shares) | | 0.7 | | | | | |
Compensation under Stock-based Plans - net | (23) | | (24.7) | | | 1.7 | |
Compensation under Stock-based Plans - net (in shares) | | 0.1 | | | | | |
Dividends | (7.9) | | 0.1 | (8) | | | |
Acquisition of Treasury Stock | (0.3) | | | | | (0.3) | |
Shares outstanding, End of Period (in shares) at Mar. 31, 2019 | | 70.4 | | | | | |
Total stockholders' equity, End of Period at Mar. 31, 2019 | 782.3 | $ 0.8 | 794.1 | 674.4 | (287.1) | (400.4) | 0.5 |
Total stockholders' equity, Beginning of Period at Dec. 31, 2018 | 861 | $ 0.8 | 797.3 | 749 | (284.8) | (401.8) | 0.5 |
Shares oustanding, Beginning of Period (in shares) at Dec. 31, 2018 | | 69.6 | | | | | |
Increase (Decrease) in Stockholders' Equity [Roll Forward] | | | | | | | |
Net income (loss) | 29.9 | | | | | | |
Other | 0 | | | | | | |
Shares outstanding, End of Period (in shares) at Sep. 30, 2019 | | 70.6 | | | | | |
Total stockholders' equity, End of Period at Sep. 30, 2019 | 866.3 | $ 0.8 | 812.6 | 754.9 | (300.3) | (401.7) | 0 |
Total stockholders' equity, Beginning of Period at Mar. 31, 2019 | 782.3 | $ 0.8 | 794.1 | 674.4 | (287.1) | (400.4) | 0.5 |
Shares oustanding, Beginning of Period (in shares) at Mar. 31, 2019 | | 70.4 | | | | | |
Increase (Decrease) in Stockholders' Equity [Roll Forward] | | | | | | | |
Net income (loss) | 75.1 | | | 75.1 | | | |
Other Comprehensive Income (Loss) – net of tax | (0.2) | | | | (0.2) | | |
Issuance of Common Stock | 1.5 | | 1.5 | | | | |
Compensation under Stock-based Plans - net | 11.8 | | 11.7 | | | 0.1 | |
Dividends | (7.8) | | 0.2 | (8) | | | |
Acquisition of Treasury Stock | (2.1) | | | | | (2.1) | |
Shares outstanding, End of Period (in shares) at Jun. 30, 2019 | | 70.4 | | | | | |
Total stockholders' equity, End of Period at Jun. 30, 2019 | 860.6 | $ 0.8 | 807.5 | 741.5 | (287.3) | (402.4) | 0.5 |
Increase (Decrease) in Stockholders' Equity [Roll Forward] | | | | | | | |
Net income (loss) | 21.4 | | | 21.4 | | | |
Other Comprehensive Income (Loss) – net of tax | (13) | | | | (13) | | |
Issuance of Common Stock | 4.2 | | 4.2 | | | | |
Issuance of Common Stock (in shares) | | 0.2 | | | | | |
Compensation under Stock-based Plans - net | 1.7 | | 0.7 | | | 1 | |
Dividends | (7.8) | | 0.2 | (8) | | | |
Acquisition of Treasury Stock | (0.3) | | | | | (0.3) | |
Noncontrolling Interest, Decrease from Deconsolidation | (0.5) | | | | | | (0.5) |
Shares outstanding, End of Period (in shares) at Sep. 30, 2019 | | 70.6 | | | | | |
Total stockholders' equity, End of Period at Sep. 30, 2019 | $ 866.3 | $ 0.8 | $ 812.6 | $ 754.9 | $ (300.3) | $ (401.7) | $ 0 |