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v3.10.0.1

Consolidated Statements of Stockholders' Equity - USD ($) shares in Millions, $ in Millions | Total | Common stock | Additional paid-in capital | Accumulated other comprehensive income (loss) | Accumulated deficit | Treasury Stock | Verily Life Sciences Additional paid-in capital | Convertible Notes due 2022 | Convertible Notes due 2022 Additional paid-in capital | Convertible Notes due 2023 | Convertible Notes due 2023 Additional paid-in capital
--- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Beginning Balance, Shares at Dec. 31, 2015 |  | 81.7 |  |  |  |  |  |  |  |  |
Beginning Balance at Dec. 31, 2015 | $ 221.2 | $ 0.1 | $ 776.8 | $ (0.3) | $ (555.4) | $ 0.0 |  |  |  |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |  |  |  |  |
Issuance of common stock under equity incentive plans, Shares |  | 2.7 |  |  |  |  |  |  |  |  |
Issuance of common stock under equity incentive plans | 4.4 |  | 4.4 |  |  |  |  |  |  |  |
Issuance of common stock for Employee Stock Purchase Plan, shares |  | 0.1 |  |  |  |  |  |  |  |  |
Issuance of common stock for Employee Stock Purchase Plan | 6.0 |  | 6.0 |  |  |  |  |  |  |  |
Issuance of common stock in connection with acquisition, shares |  | 0.1 |  |  |  |  |  |  |  |  |
Issuance of common stock in connection with acquisition | 7.2 |  |  |  |  |  | $ 7.2 |  |  |  |
Share-based compensation expense | 111.3 |  | 111.3 |  |  |  |  |  |  |  |
Net loss | (65.6) |  |  |  | (65.6) |  |  |  |  |  |
Other comprehensive income | (0.7) |  |  | (0.7) |  |  |  |  |  |  |
Ending Balance, shares at Dec. 31, 2016 |  | 84.6 |  |  |  |  |  |  |  |  |
Ending Balance at Dec. 31, 2016 | 283.8 | $ 0.1 | 905.7 | (1.0) | (621.0) | 0.0 |  |  |  |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |  |  |  |  |
Issuance of common stock under equity incentive plans, Shares |  | 2.3 |  |  |  |  |  |  |  |  |
Issuance of common stock under equity incentive plans | 2.7 |  | 2.7 |  |  |  |  |  |  |  |
Issuance of common stock for Employee Stock Purchase Plan, shares |  | 0.1 |  |  |  |  |  |  |  |  |
Issuance of common stock for Employee Stock Purchase Plan | 7.4 |  | 7.4 |  |  |  |  |  |  |  |
Share-based compensation expense | 106.7 |  | 106.7 |  |  |  |  |  |  |  |
Equity component of convertible note issuance, net of issuance costs |  |  |  |  |  |  |  | $ 70.6 | $ 70.6 |  |
New Accounting Pronouncement or Change in Accounting Principle, Effect of Adoption, Quantification | Accounting Standards Update 2016-09 |  |  | 0.6 |  | (0.6) |  |  |  |  |  |
Net loss | (50.2) |  |  |  | (50.2) |  |  |  |  |  |
Other comprehensive income | (1.6) |  |  | (1.6) |  |  |  |  |  |  |
Ending Balance, shares at Dec. 31, 2017 |  | 87.0 |  |  |  |  |  |  |  |  |
Ending Balance at Dec. 31, 2017 | 419.4 | $ 0.1 | 1,093.7 | (2.6) | (671.8) | 0.0 |  |  |  |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |  |  |  |  |
Issuance of common stock under equity incentive plans, Shares |  | 1.8 |  |  |  |  |  |  |  |  |
Issuance of common stock under equity incentive plans | 1.9 |  | 1.9 |  |  |  |  |  |  |  |
Issuance of common stock for Employee Stock Purchase Plan, shares |  | 0.2 |  |  |  |  |  |  |  |  |
Issuance of common stock for Employee Stock Purchase Plan | 8.9 |  | 8.9 |  |  |  |  |  |  |  |
Share-based compensation expense | 101.9 |  | 101.9 |  |  |  |  |  |  |  |
Equity component of convertible note issuance, net of issuance costs | (218.9) |  | (218.9) |  |  |  |  |  |  | $ 171.6 | $ 171.6
Issuance of common stock for collaborative research and development fees, shares |  | 1.8 |  |  |  |  |  |  |  |  |
Stock Issued During Period, Value, Purchase of Assets | 217.7 |  | 217.7 |  |  |  |  |  |  |  |
Sale of warrants | $ 183.8 |  | 183.8 |  |  |  |  |  |  |  |
Purchases of treasury stock, shares | (0.8) | (0.8) |  |  |  |  |  |  |  |  |
Purchases of treasury stock | $ (100.0) |  |  |  |  | (100.0) |  |  |  |  |
Net loss | (127.1) |  |  |  |  |  |  |  |  |  |
Other comprehensive income | 4.1 |  |  |  |  |  |  |  |  |  |
Ending Balance, shares at Dec. 31, 2018 |  | 90.0 |  |  |  |  |  |  |  |  |
Ending Balance at Dec. 31, 2018 | $ 663.3 | $ 0.1 | $ 1,560.6 | $ 1.5 | $ (798.9) | $ (100.0) |  |  |  |  |

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