CONSOLIDATED STATEMENTS OF STOCKHOLDERS’ EQUITY (DEFICIT) - USD ($) $ in Millions | Common Stock | Additional Paid-in Capital | Accumulated Deficit | Total |
Balance at beginning of period at Dec. 31, 2017 | $ 35.9 | $ 3,712.1 | $ (4,566.3) | $ (818.3) |
Balance at beginning of period (in shares) at Dec. 31, 2017 | 51,783,000 | | | |
Net (loss) income | | | 78.7 | 78.7 |
Activity related to stock plans | | 1.6 | | 1.6 |
Recapitalization of convertible preferred stock to common stock | $ 0.4 | 349.4 | | 349.8 |
Recapitalization of convertible preferred stock to common stock (in shares) | 39,415,000 | | | |
Issuance of common stock | $ 0.1 | 302.9 | | 303 |
Issuance of common stock (in shares) | 18,077,000 | | | |
Balance at end of period at Mar. 31, 2018 | $ 36.4 | 4,366 | (4,487.6) | (85.2) |
Balance at end of period (in shares) at Mar. 31, 2018 | 109,275,000 | | | |
Balance at beginning of period at Dec. 31, 2017 | $ 35.9 | 3,712.1 | (4,566.3) | (818.3) |
Balance at beginning of period (in shares) at Dec. 31, 2017 | 51,783,000 | | | |
Net (loss) income | | | | 231.9 |
Balance at end of period at Sep. 30, 2018 | $ 36.4 | 4,372.6 | (4,334.4) | 74.6 |
Balance at end of period (in shares) at Sep. 30, 2018 | 109,275,000 | | | |
Balance at beginning of period at Dec. 31, 2017 | $ 35.9 | 3,712.1 | (4,566.3) | (818.3) |
Balance at beginning of period (in shares) at Dec. 31, 2017 | 51,783,000 | | | |
Balance at end of period at Dec. 31, 2018 | $ 36.4 | 4,378.4 | (4,307.9) | $ 106.9 |
Balance at end of period (in shares) at Dec. 31, 2018 | 109,435,000 | | | 109,434,841 |
Balance at beginning of period at Mar. 31, 2018 | $ 36.4 | 4,366 | (4,487.6) | $ (85.2) |
Balance at beginning of period (in shares) at Mar. 31, 2018 | 109,275,000 | | | |
Net (loss) income | | | 103.6 | 103.6 |
Activity related to stock plans | | 3.4 | | 3.4 |
Balance at end of period at Jun. 30, 2018 | $ 36.4 | 4,369.4 | (4,384) | 21.8 |
Balance at end of period (in shares) at Jun. 30, 2018 | 109,275,000 | | | |
Net (loss) income | | | 49.6 | 49.6 |
Activity related to stock plans | | 3.2 | | 3.2 |
Balance at end of period at Sep. 30, 2018 | $ 36.4 | 4,372.6 | (4,334.4) | 74.6 |
Balance at end of period (in shares) at Sep. 30, 2018 | 109,275,000 | | | |
Balance at beginning of period at Dec. 31, 2018 | $ 36.4 | 4,378.4 | (4,307.9) | $ 106.9 |
Balance at beginning of period (in shares) at Dec. 31, 2018 | 109,435,000 | | | 109,434,841 |
Net (loss) income | | | (55) | $ (55) |
Cumulative effect of accounting change | | | 0.1 | 0.1 |
Activity related to stock plans | | 1.3 | | 1.3 |
Activity related to stock plans (in shares) | 364,000 | | | |
Balance at end of period at Mar. 31, 2019 | $ 36.4 | 4,379.7 | (4,362.8) | 53.3 |
Balance at end of period (in shares) at Mar. 31, 2019 | 109,799,000 | | | |
Balance at beginning of period at Dec. 31, 2018 | $ 36.4 | 4,378.4 | (4,307.9) | $ 106.9 |
Balance at beginning of period (in shares) at Dec. 31, 2018 | 109,435,000 | | | 109,434,841 |
Net (loss) income | | | | $ (59.9) |
Repurchase of common stock | | | | $ (8.3) |
Repurchase of common stock (in shares) | | | | (1,975,000) |
Balance at end of period at Sep. 30, 2019 | $ 36.4 | 4,377.8 | (4,367.7) | $ 46.5 |
Balance at end of period (in shares) at Sep. 30, 2019 | 107,878,000 | | | 107,878,289 |
Balance at beginning of period at Mar. 31, 2019 | $ 36.4 | 4,379.7 | (4,362.8) | $ 53.3 |
Balance at beginning of period (in shares) at Mar. 31, 2019 | 109,799,000 | | | |
Net (loss) income | | | 5.9 | 5.9 |
Repurchase of common stock | | (4.6) | | (4.6) |
Repurchase of common stock (in shares) | (761,000) | | | |
Activity related to stock plans | | 3.4 | | 3.4 |
Activity related to stock plans (in shares) | 55,000 | | | |
Balance at end of period at Jun. 30, 2019 | $ 36.4 | 4,378.5 | (4,356.9) | 58 |
Balance at end of period (in shares) at Jun. 30, 2019 | 109,093,000 | | | |
Net (loss) income | | | (10.8) | (10.8) |
Repurchase of common stock | | (3.7) | | (3.7) |
Repurchase of common stock (in shares) | (1,215,000) | | | |
Activity related to stock plans | | 3 | | 3 |
Balance at end of period at Sep. 30, 2019 | $ 36.4 | $ 4,377.8 | $ (4,367.7) | $ 46.5 |
Balance at end of period (in shares) at Sep. 30, 2019 | 107,878,000 | | | 107,878,289 |