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Financial Instruments - Disclosure of changes in assets, level 3 fair value - investments held at fair value (Details) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
Disclosure of financial assets [line items] |  |  |
Balance at beginning of period before allocation of associate loss to long-term interest | $ 944,832 |  |
Cash investment in associate | 19,961 | $ 0 | $ 0
Balance at end of period before allocation of associate loss to long-term interest | 575,738 | 944,832 |
Investments held at fair value |  |  |
Disclosure of financial assets [line items] |  |  |
Balance at beginning of period before allocation of associate loss to long-term interest | 493,888 |  |
Balance at end of period before allocation of associate loss to long-term interest | 251,892 | 493,888 |
Level 3 of fair value hierarchy |  |  |
Disclosure of financial assets [line items] |  |  |
Balance at beginning of period before allocation of associate loss to long-term interest | 254,653 |  |
Balance at end of period before allocation of associate loss to long-term interest | 29,094 | 254,653 |
Level 3 of fair value hierarchy | Investments held at fair value |  |  |
Disclosure of financial assets [line items] |  |  |
Balance at beginning of period before allocation of associate loss to long-term interest | 239,533 | 206,892 | 154,445
Gain/(Loss) on changes in fair value | (31,253) | 65,505 | 41,297
Reclassification of Akili to level 1 investment | (128,764) |  |
Balance at end of period before allocation of associate loss to long-term interest | 12,593 | 239,533 | 206,892
Balance at end of period after allocation of associate loss to long-term interest | 12,593 |  |
Level 3 of fair value hierarchy | Investments held at fair value | Gelesis |  |  |
Disclosure of financial assets [line items] |  |  |
Cash investment in associate |  |  | 10,000
Gelesis Earn out shares received in SPAC exchange | 14,214 |  |
Exchange of Gelesis preferred shares to Gelesis common shares | (92,303) |  |
Level 3 of fair value hierarchy | Investments held at fair value | Vor |  |  |
Disclosure of financial assets [line items] |  |  |
Cash investment in associate |  | 500 | $ 1,150
Reclassification of Vor from level 3 to level 1 |  | $ (33,365) |
Level 3 of fair value hierarchy | Investments held at fair value | Sonde |  |  |
Disclosure of financial assets [line items] |  |  |
Deconsolidation | $ 11,168 |  |

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- Definition The fair value of financial assets. [Refer: At fair value [member]; Financial assets] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 7 -IssueDate 2022-03-24 -Paragraph 25 -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2022-en-r&anchor=para_25&doctype=Standard -URIDate 2022-03-24 + Details
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