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v3.21.1

Subsequent Events (Details) - USD ($) $ / shares in Units, $ in Thousands | 1 Months Ended | 2 Months Ended | 3 Months Ended | 6 Months Ended | 9 Months Ended | 12 Months Ended |  |  |
--- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Feb. 28, 2021 | Jan. 31, 2021 | Nov. 30, 2020 | Aug. 31, 2020 | Dec. 31, 2019 | Mar. 31, 2019 | Feb. 28, 2021 | Dec. 31, 2020 | Mar. 31, 2020 | Mar. 31, 2019 | Jun. 30, 2020 | Jun. 30, 2019 | Sep. 30, 2020 | Sep. 30, 2019 | Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018 | May 31, 2020 | May 29, 2020 | May 18, 2020
Subsequent Events |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Public offerings, common stock, net (in shares) |  |  | 43,700,000 | 35,276,250 | 46,000,000 | 10,000,000 |  | 4,400,000 |  |  |  |  |  |  | 79,000,000.0 |  |  |  |  |
Proceeds from public offerings, net of transaction costs |  |  | $ 927,300 | $ 344,400 | $ 120,400 | $ 23,500 |  |  |  | $ 23,498 | $ (269) | $ 28,265 | $ 344,398 | $ 38,098 | $ 1,271,714 | $ 158,343 | $ 7,195 |  |  |
Conversion of preferred stock to common stock |  |  |  |  |  |  |  |  | $ 441 |  | $ 441 |  | $ 43,058 | $ 1,883 | $ 1,179 | $ 28,392 |  |  |  |
Interest rate (as a percent) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 3.50% |  |
Common stock, shares issued |  |  |  |  | 318,637,560 |  |  | 473,977,469 |  |  |  |  |  |  | 473,977,469 | 318,637,560 |  |  |  |
Share price (in dollars per share) |  |  | $ 22.25 | $ 10.25 | $ 2.75 | $ 2.35 |  |  |  | $ 2.35 |  |  |  |  |  | $ 2.75 |  |  |  |
3.75% Convertible Senior Notes |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Subsequent Events |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Interest rate (as a percent) |  |  |  |  |  |  |  | 3.75% |  |  |  |  |  |  | 3.75% |  |  | 3.75% | 3.75% | 3.75%
Share price (in dollars per share) |  |  |  |  |  |  |  | $ 33.91 |  |  |  |  |  |  | $ 33.91 |  |  |  |  |
Subsequent event |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Subsequent Events |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Public offerings, common stock, net (in shares) |  |  |  |  |  |  | 32.2 |  |  |  |  |  |  |  |  |  |  |  |  |
Subsequent event | SK Holdings Co LTD |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Subsequent Events |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Public offerings, common stock, net (in shares) | 54,996,188 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Per share price of shares of common stock | $ 29.2893 |  |  |  |  |  | $ 29.2893 |  |  |  |  |  |  |  |  |  |  |  |  |
Proceeds from public offerings, net of transaction costs | $ 1,600,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Common stock, shares issued | 54,966,188 |  |  |  |  |  | 54,966,188 |  |  |  |  |  |  |  |  |  |  |  |  |
Subsequent event | 3.75% Convertible Senior Notes |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Subsequent Events |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Conversion of preferred stock to common stock | $ 15,200 | $ 15,200 |  |  |  |  | $ 15,200 |  |  |  |  |  |  |  |  |  |  |  |  |
Interest rate (as a percent) | 3.75% | 3.75% |  |  |  |  | 3.75% |  |  |  |  |  |  |  |  |  |  |  |  |
Conversion of notes through common stock issuance | 3,000,000.0 | 3,000,000.0 |  |  |  |  | 3,000,000.0 |  |  |  |  |  |  |  |  |  |  |  |  |
Subsequent event | Public Offerings |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Subsequent Events |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Public offerings, common stock, net (in shares) | 32,200,000 | 32,200,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Proceeds from public offerings, net of transaction costs | $ 1,800,000 | $ 1,800,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Share price (in dollars per share) | $ 65.00 | $ 65.00 |  |  |  |  | $ 65.00 |  |  |  |  |  |  |  |  |  |  |  |  |

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