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Cash and cash equivalents - Short-Term Deposits, Classified as Cash Equivalents (Details) - USD ($) $ in Thousands | Dec. 31, 2023 | Dec. 31, 2022
--- | --- | ---
Disclosures Of Cash And Cash Equivalents [Line Items] |  |
Principal | $ 50,707 | $ 345,949
Short-term deposits, classified as cash equivalents | $ 23,545 | $ 1,099,441
Short term deposit one |  |
Disclosures Of Cash And Cash Equivalents [Line Items] |  |
Interest Rate | 0.39% | 0.95%
Principal | $ 5,000 | $ 42,998
Interest accrued to-date | 16 | 609
Short-term deposits, classified as cash equivalents | $ 5,016 | $ 43,607
Short term deposit two |  |
Disclosures Of Cash And Cash Equivalents [Line Items] |  |
Interest Rate | 0.28% | 0.94%
Principal | $ 1,300 | $ 100,817
Interest accrued to-date | 2 | 537
Short-term deposits, classified as cash equivalents | $ 1,302 | $ 101,354
Short term deposit three |  |
Disclosures Of Cash And Cash Equivalents [Line Items] |  |
Interest Rate | 0.80% | 0.96%
Principal | $ 1,000 | $ 41,421
Interest accrued to-date | 0 | 343
Short-term deposits, classified as cash equivalents | $ 1,000 | $ 41,764
Short term deposit four |  |
Disclosures Of Cash And Cash Equivalents [Line Items] |  |
Interest Rate | 0.27% | 0.96%
Principal | $ 3,000 | $ 100,660
Interest accrued to-date | 6 | 644
Short-term deposits, classified as cash equivalents | $ 3,006 | $ 101,304
Short term deposit five |  |
Disclosures Of Cash And Cash Equivalents [Line Items] |  |
Interest Rate | 0.54% | 0.95%
Principal | $ 2,000 | $ 32,248
Interest accrued to-date | 8 | 458
Short-term deposits, classified as cash equivalents | $ 2,008 | $ 32,706
Short term deposit six |  |
Disclosures Of Cash And Cash Equivalents [Line Items] |  |
Interest Rate | 0.45% | 0.95%
Principal | $ 2,700 | $ 73,831
Interest accrued to-date | 5 | 1,070
Short-term deposits, classified as cash equivalents | $ 2,705 | $ 74,901
Short term deposit seven |  |
Disclosures Of Cash And Cash Equivalents [Line Items] |  |
Interest Rate | 0.23% | 0.96%
Principal | $ 2,200 | $ 30,146
Interest accrued to-date | 4 | 183
Short-term deposits, classified as cash equivalents | $ 2,204 | $ 30,329
Short term deposit eight |  |
Disclosures Of Cash And Cash Equivalents [Line Items] |  |
Interest Rate | 0.16% | 0.95%
Principal | $ 1,140 | $ 103,288
Interest accrued to-date | 1 | 523
Short-term deposits, classified as cash equivalents | $ 1,141 | $ 103,811
Short term deposit nine |  |
Disclosures Of Cash And Cash Equivalents [Line Items] |  |
Interest Rate | 0.78% | 0.94%
Principal | $ 700 | $ 20,710
Interest accrued to-date | 2 | 168
Short-term deposits, classified as cash equivalents | $ 702 | $ 20,878
Short term deposit ten |  |
Disclosures Of Cash And Cash Equivalents [Line Items] |  |
Interest Rate | 0.70% | 0.96%
Principal | $ 1,850 | $ 50,330
Interest accrued to-date | 1 | 322
Short-term deposits, classified as cash equivalents | $ 1,851 | $ 50,652
Short term deposit eleven |  |
Disclosures Of Cash And Cash Equivalents [Line Items] |  |
Interest Rate | 1.02% | 0.98%
Principal | $ 1,300 | $ 100,487
Interest accrued to-date | 6 | 621
Short-term deposits, classified as cash equivalents | $ 1,306 | $ 101,108
Short term deposit twelve |  |
Disclosures Of Cash And Cash Equivalents [Line Items] |  |
Interest Rate | 0.77% | 0.96%
Principal | $ 1,300 | $ 70,341
Interest accrued to-date | 4 | 428
Short-term deposits, classified as cash equivalents | 1,304 | $ 70,769
Short term deposit thirteen |  |
Disclosures Of Cash And Cash Equivalents [Line Items] |  |
Interest Rate |  | 0.97%
Principal |  | $ 100,258
Interest accrued to-date |  | 584
Short-term deposits, classified as cash equivalents |  | $ 100,842
Short term deposit fourteen |  |
Disclosures Of Cash And Cash Equivalents [Line Items] |  |
Interest Rate |  | 4.54%
Principal |  | $ 82,000
Interest accrued to-date |  | 424
Short-term deposits, classified as cash equivalents |  | $ 82,424
Short term deposit fifteen |  |
Disclosures Of Cash And Cash Equivalents [Line Items] |  |
Interest Rate |  | 4.54%
Principal |  | $ 122,000
Interest accrued to-date |  | 631
Short-term deposits, classified as cash equivalents |  | $ 122,631
Short term deposit sixteen |  |
Disclosures Of Cash And Cash Equivalents [Line Items] |  |
Interest Rate |  | 0.42%
Principal |  | $ 2,000
Interest accrued to-date |  | 7
Short-term deposits, classified as cash equivalents |  | $ 2,007
Short term deposit seventeen |  |
Disclosures Of Cash And Cash Equivalents [Line Items] |  |
Interest Rate |  | 0.44%
Principal |  | $ 1,500
Interest accrued to-date |  | 6
Short-term deposits, classified as cash equivalents |  | $ 1,506
Short term deposit eighteen |  |
Disclosures Of Cash And Cash Equivalents [Line Items] |  |
Interest Rate |  | 0.22%
Principal |  | $ 2,103
Interest accrued to-date |  | 1
Short-term deposits, classified as cash equivalents |  | $ 2,104
Short term deposit nineteen |  |
Disclosures Of Cash And Cash Equivalents [Line Items] |  |
Interest Rate |  | 0.95%
Principal |  | $ 600
Interest accrued to-date |  | 2
Short-term deposits, classified as cash equivalents |  | $ 602
Short term deposit twenty |  |
Disclosures Of Cash And Cash Equivalents [Line Items] |  |
Interest Rate |  | 1.02%
Principal |  | $ 500
Interest accrued to-date |  | 2
Short-term deposits, classified as cash equivalents |  | $ 502
Short term deposit twenty one |  |
Disclosures Of Cash And Cash Equivalents [Line Items] |  |
Interest Rate |  | 0.46%
Principal |  | $ 1,000
Interest accrued to-date |  | 4
Short-term deposits, classified as cash equivalents |  | $ 1,004
Short term deposit twenty two |  |
Disclosures Of Cash And Cash Equivalents [Line Items] |  |
Interest Rate |  | 0.42%
Principal |  | $ 700
Interest accrued to-date |  | 2
Short-term deposits, classified as cash equivalents |  | $ 702
Short term deposit twenty three |  |
Disclosures Of Cash And Cash Equivalents [Line Items] |  |
Interest Rate |  | 1.07%
Principal |  | $ 1,700
Interest accrued to-date |  | 3
Short-term deposits, classified as cash equivalents |  | $ 1,703
Short term deposit twenty four |  |
Disclosures Of Cash And Cash Equivalents [Line Items] |  |
Interest Rate |  | 0.66%
Principal |  | $ 1,000
Interest accrued to-date |  | 3
Short-term deposits, classified as cash equivalents |  | $ 1,003
Short term deposit twenty five |  |
Disclosures Of Cash And Cash Equivalents [Line Items] |  |
Interest Rate |  | 0.64%
Principal |  | $ 2,500
Interest accrued to-date |  | 15
Short-term deposits, classified as cash equivalents |  | $ 2,515
Short term deposit twenty six |  |
Disclosures Of Cash And Cash Equivalents [Line Items] |  |
Interest Rate |  | 0.72%
Principal |  | $ 2,200
Interest accrued to-date |  | 1
Short-term deposits, classified as cash equivalents |  | $ 2,201
Short term deposit twenty seven |  |
Disclosures Of Cash And Cash Equivalents [Line Items] |  |
Interest Rate |  | 0.96%
Principal |  | $ 500
Interest accrued to-date |  | 0
Short-term deposits, classified as cash equivalents |  | $ 500
Short term deposit twenty eight |  |
Disclosures Of Cash And Cash Equivalents [Line Items] |  |
Interest Rate |  | 0.58%
Principal |  | $ 1,500
Interest accrued to-date |  | 8
Short-term deposits, classified as cash equivalents |  | $ 1,508
Short term deposit twenty nine |  |
Disclosures Of Cash And Cash Equivalents [Line Items] |  |
Interest Rate |  | 0.38%
Principal |  | $ 1,500
Interest accrued to-date |  | 3
Short-term deposits, classified as cash equivalents |  | $ 1,503
Short term deposit thirty |  |
Disclosures Of Cash And Cash Equivalents [Line Items] |  |
Interest Rate |  | 0.87%
Principal |  | $ 1,000
Interest accrued to-date |  | 1
Short-term deposits, classified as cash equivalents |  | 1,001
Short-term deposits classified as cash equivalents |  |
Disclosures Of Cash And Cash Equivalents [Line Items] |  |
Principal | 23,490 | 1,091,838
Interest accrued to-date | 55 | 7,603
Short-term deposits, classified as cash equivalents | $ 23,545 | $ 1,099,441

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