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Share Capital | 9 Months Ended
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Sep. 30, 2020
Equity [Abstract] |
Share Capital | 8. Share Capital The Company had 115,172,786 authorized common shares as of September 30, 2020, with a par value of CHF 0.03 per share. Share Capital consisted of the following:
|  |  |  | As of |
Type of Share Capital |  | Conditional Capital |  | September 30, 2020 |  |  | December 31, 2019 |
Common shares |  | Registered share capital |  |  | 71,633,951 |  |  |  | 61,036,566 |
Common shares |  | Authorized share capital |  |  | 21,125,426 |  |  |  | 19,246,503 |
Common shares |  | Conditional share capital - Bonds or similar debt instruments |  |  | 4,919,700 |  |  |  | 4,919,700 |
Common shares |  | Conditional share capital - Employee benefit plans |  |  | 17,493,709 |  |  |  | 18,698,237 |
|  | Total |  |  | 115,172,786 |  |  |  | 103,901,006 |
At-the-Market Offering In August 2018, the Company entered into an Open Market Sale AgreementSM, or the 2018 ATM, with Jefferies LLC, or Jefferies, under which Jefferies was able to offer and sell, from time to time, common shares having aggregate gross proceeds of up to $125.0 million. In August 2019, following the termination of the 2018 ATM by its terms, the Company entered into a new Open Market Sale AgreementSM with Jefferies, or the 2019 ATM, under which the Company may offer and sell, from time to time, common shares having aggregate gross proceeds of up to $200.0 million. During the three and nine months ended September 30, 2019, the Company sold 1.5 million and 2.8 million common shares, respectively, under the 2018 ATM for net cash proceeds of $69.4 million and $121.9 million, respectively, after deducting commission fees of $1.5 million and $3.1 million, respectively. In addition, the Company paid approximately $0.5 million and $0.7 million in stamp taxes during the three and nine months ended September 30, 2019, respectively, and accrued an additional $0.6 million for stamp taxes as of September 30, 2019 related to securities sold under the 2018 ATM. For the year ended December 31, 2019, the Company issued and sold an aggregate of 2.8 million common shares under the 2018 ATM, for aggregate proceeds of $120.6 million, which were net of equity issuance costs of $4.4 million. During the three and nine months ended September 30, 2020, the Company sold 0.1 million and 1.3 million common shares, respectively, under the 2019 ATM for net cash proceeds of $9.6 million and $91.9 million, respectively, after deducting commission fees $0.2 million and $2.4 million, respectively. In addition, the Company paid approximately $0.4 million in stamp taxes during the three and nine months ended September 30, 2020, respectively, and accrued an additional $0.6 million for stamp taxes as of September 30, 2020 related to securities sold under the 2019 ATM. July 2020 Offering In July 2020, the Company sold 7.4 million common shares through an underwritten public offering (inclusive of shares sold pursuant to the exercise of the underwriters’ option to purchase additional shares) at a public offering price of $70.00 per share for aggregate net proceeds of $484.8 million, which were net of equity issuance costs and stamp tax of $32.5 million, of which $4.9 million was accrued on the condensed consolidated balance sheet as of September 30, 2020.

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- Definition The entire disclosure for shareholders' equity comprised of portions attributable to the parent entity and noncontrolling interest, including other comprehensive income. Includes, but is not limited to, balances of common stock, preferred stock, additional paid-in capital, other capital and retained earnings, accumulated balance for each classification of other comprehensive income and amount of comprehensive income. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08(e)(1)) -URI http://asc.fasb.org/extlink&oid=120395691&loc=d3e23780-122690 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.3-04) -URI http://asc.fasb.org/extlink&oid=120397183&loc=d3e187085-122770 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -URI http://asc.fasb.org/topic&trid=2208762 + Details
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