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v3.21.1

Unaudited Quarterly Financial data and Restatement of Previously Issued Unaudited interim Condensed Consolidated Financial Statements - Condensed Consolidated Statements of Stockholders' Equity (Details) - USD ($) $ in Thousands | Dec. 31, 2020 | Sep. 30, 2020 | Jun. 30, 2020 | Mar. 31, 2020 | Dec. 31, 2019 | Sep. 30, 2019 | Jun. 30, 2019 | Mar. 31, 2019 | Dec. 31, 2018
--- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Increase (Decrease) in Stockholders' Equity |  |  |  |  |  |  |  |  |
Balance | $ 586,265 | $ 234,560 | $ 104,392 | $ 129,904 | $ (19,225) | $ (15,795) | $ (7,075) | $ (3,588) | $ 70,229
Balance (in shares) |  |  |  | 318,637,560 |  |  |  |  |
Balance | $ 1,466,919 | 586,265 | 234,560 | $ 104,392 | $ 129,904 | (19,225) | (15,795) | (7,075) | (3,588)
Balance (in shares) | 473,977,469 |  |  |  | 318,637,560 |  |  |  |
As previously Reported |  |  |  |  |  |  |  |  |
Increase (Decrease) in Stockholders' Equity |  |  |  |  |  |  |  |  |
Balance | $ 617,444 | 239,965 | 109,120 | 134,679 | $ (14,406) | (10,655) | (1,180) | 2,713 | 73,646
Balance |  | 617,444 | 239,965 | 109,120 | 134,679 | (14,406) | (10,655) | (1,180) | 2,713
Restatement Adjustments |  |  |  |  |  |  |  |  |
Increase (Decrease) in Stockholders' Equity |  |  |  |  |  |  |  |  |
Balance | (31,179) | (5,405) | (4,728) | (4,775) | (4,819) | (5,140) | (5,895) | (6,301) | (3,417)
Balance |  | (31,179) | (5,405) | (4,728) | (4,775) | (4,819) | (5,140) | (5,895) | (6,301)
Common Stock |  |  |  |  |  |  |  |  |
Increase (Decrease) in Stockholders' Equity |  |  |  |  |  |  |  |  |
Balance | $ 4,061 | $ 3,482 | $ 3,222 | $ 3,186 | $ 2,540 | $ 2,470 | $ 2,445 | $ 2,342 | $ 2,291
Balance (in shares) | 406,123,816 | 348,201,792 | 322,220,469 | 318,637,560 | 253,982,578 | 246,975,173 | 244,537,235 | 234,160,661 | 229,073,517
Balance | $ 4,740 | $ 4,061 | $ 3,482 | $ 3,222 | $ 3,186 | $ 2,540 | $ 2,470 | $ 2,445 | $ 2,342
Balance (in shares) | 473,977,469 | 406,123,816 | 348,201,792 | 322,220,469 | 318,637,560 | 253,982,578 | 246,975,173 | 244,537,235 | 234,160,661
Common Stock | As previously Reported |  |  |  |  |  |  |  |  |
Increase (Decrease) in Stockholders' Equity |  |  |  |  |  |  |  |  |
Balance | $ 4,061 | $ 3,482 | $ 3,222 | $ 3,186 | $ 2,540 | $ 2,470 | $ 2,445 | $ 2,342 | $ 2,291
Balance (in shares) | 406,123,816 | 348,201,792 | 322,220,469 | 318,637,560 | 253,982,578 | 246,975,173 | 244,537,235 | 234,160,661 | 229,073,517
Balance |  | $ 4,061 | $ 3,482 | $ 3,222 | $ 3,186 | $ 2,540 | $ 2,470 | $ 2,445 | $ 2,342
Balance (in shares) |  | 406,123,816 | 348,201,792 | 322,220,469 | 318,637,560 | 253,982,578 | 246,975,173 | 244,537,235 | 234,160,661
Additional Paid-in-Capital |  |  |  |  |  |  |  |  |
Increase (Decrease) in Stockholders' Equity |  |  |  |  |  |  |  |  |
Balance | $ 2,083,169 | $ 1,658,438 | $ 1,519,094 | $ 1,506,953 | $ 1,340,781 | $ 1,325,381 | $ 1,316,815 | $ 1,289,636 | $ 1,250,899
Balance | 3,446,650 | 2,083,169 | 1,658,438 | 1,519,094 | 1,506,953 | 1,340,781 | 1,325,381 | 1,316,815 | 1,289,636
Additional Paid-in-Capital | As previously Reported |  |  |  |  |  |  |  |  |
Increase (Decrease) in Stockholders' Equity |  |  |  |  |  |  |  |  |
Balance | 2,083,199 | 1,658,532 | 1,519,257 | 1,507,116 | 1,340,859 | 1,325,459 | 1,316,893 | 1,289,714 | 1,250,899
Balance |  | 2,083,199 | 1,658,532 | 1,519,257 | 1,507,116 | 1,340,859 | 1,325,459 | 1,316,893 | 1,289,714
Additional Paid-in-Capital | Restatement Adjustments |  |  |  |  |  |  |  |  |
Increase (Decrease) in Stockholders' Equity |  |  |  |  |  |  |  |  |
Balance | (30) | (94) | (163) | (163) | (78) | (78) | (78) | (78) |
Balance |  | (30) | (94) | (163) | (163) | (78) | (78) | (78) | (78)
Accumulated Other Comprehensive Income |  |  |  |  |  |  |  |  |
Increase (Decrease) in Stockholders' Equity |  |  |  |  |  |  |  |  |
Balance | 1,846 | 1,159 | 1,052 | 1,288 | 929 | 1,460 | 1,374 | 1,584 | 2,194
Balance | 2,451 | 1,846 | 1,159 | 1,052 | 1,288 | 929 | 1,460 | 1,374 | 1,584
Accumulated Other Comprehensive Income | As previously Reported |  |  |  |  |  |  |  |  |
Increase (Decrease) in Stockholders' Equity |  |  |  |  |  |  |  |  |
Balance | 1,958 | 1,271 | 1,164 | 1,400 | 929 | 1,460 | 1,374 | 1,584 | 2,194
Balance |  | 1,958 | 1,271 | 1,164 | 1,400 | 929 | 1,460 | 1,374 | 1,584
Accumulated Other Comprehensive Income | Restatement Adjustments |  |  |  |  |  |  |  |  |
Increase (Decrease) in Stockholders' Equity |  |  |  |  |  |  |  |  |
Balance | (112) | (112) | (112) | (112) |  |  |  |  |
Balance |  | (112) | (112) | (112) | (112) |  |  |  |
Treasury Stock |  |  |  |  |  |  |  |  |
Increase (Decrease) in Stockholders' Equity |  |  |  |  |  |  |  |  |
Balance | $ (40,434) | $ (31,359) | $ (31,224) | $ (31,216) | $ (31,216) | $ (30,681) | $ (30,637) | $ (30,637) | $ (3,102)
Balance (in shares) | 15,926,068 | 15,292,591 | 15,261,007 | 15,259,045 | 15,259,045 | 15,020,437 | 15,002,663 | 15,002,663 | 587,151
Balance | $ (40,434) | $ (40,434) | $ (31,359) | $ (31,224) | $ (31,216) | $ (31,216) | $ (30,681) | $ (30,637) | $ (30,637)
Balance (in shares) | 15,926,068 | 15,926,068 | 15,292,591 | 15,261,007 | 15,259,045 | 15,259,045 | 15,020,437 | 15,002,663 | 15,002,663
Treasury Stock | As previously Reported |  |  |  |  |  |  |  |  |
Increase (Decrease) in Stockholders' Equity |  |  |  |  |  |  |  |  |
Balance | $ (40,434) | $ (31,359) | $ (31,224) | $ (31,216) | $ (31,216) | $ (30,681) | $ (30,637) | $ (30,637) | $ (3,102)
Balance (in shares) | 15,926,068 | 15,292,591 | 15,261,007 | 15,259,045 | 15,259,045 | 15,020,437 | 15,002,663 | 15,002,663 | 587,151
Balance |  | $ (40,434) | $ (31,359) | $ (31,224) | $ (31,216) | $ (31,216) | $ (30,681) | $ (30,637) | $ (30,637)
Balance (in shares) |  | 15,926,068 | 15,292,591 | 15,261,007 | 15,259,045 | 15,259,045 | 15,020,437 | 15,002,663 | 15,002,663
Accumulated Deficit |  |  |  |  |  |  |  |  |
Increase (Decrease) in Stockholders' Equity |  |  |  |  |  |  |  |  |
Balance | $ (1,462,377) | $ (1,397,160) | $ (1,387,752) | $ (1,350,307) | $ (1,332,259) | $ (1,314,425) | $ (1,297,072) | $ (1,266,513) | $ (1,182,053)
Balance | (1,946,488) | (1,462,377) | (1,397,160) | (1,387,752) | (1,350,307) | (1,332,259) | (1,314,425) | (1,297,072) | (1,266,513)
Accumulated Deficit | As previously Reported |  |  |  |  |  |  |  |  |
Increase (Decrease) in Stockholders' Equity |  |  |  |  |  |  |  |  |
Balance | (1,431,340) | (1,391,961) | (1,383,299) | (1,345,807) | (1,327,518) | (1,309,363) | (1,291,255) | (1,260,290) | (1,178,636)
Balance |  | (1,431,340) | (1,391,961) | (1,383,299) | (1,345,807) | (1,327,518) | (1,309,363) | (1,291,255) | (1,260,290)
Accumulated Deficit | Restatement Adjustments |  |  |  |  |  |  |  |  |
Increase (Decrease) in Stockholders' Equity |  |  |  |  |  |  |  |  |
Balance | $ (31,037) | (5,199) | (4,453) | (4,500) | (4,741) | (5,062) | (5,817) | (6,223) | (3,417)
Balance |  | $ (31,037) | $ (5,199) | $ (4,453) | $ (4,500) | $ (4,741) | $ (5,062) | $ (5,817) | $ (6,223)

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