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ROYALTY LIABILITY - RELATED PARTIES - Schedule of Royalty Liability (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2024 | Sep. 30, 2023 | Sep. 30, 2024 | Sep. 30, 2023
Accrued Royalties [Roll Forward] |  |  |  |
Beginning balance |  |  | $ 165,252 |
Interest expense recognized | $ 8,875 | $ 8,136 | 25,953 | $ 10,753
Ending balance | 191,205 |  | 191,205 |
Management |  |  |  |
Accrued Royalties [Roll Forward] |  |  |  |
Beginning balance |  |  | 165,252 |
Interest expense recognized |  |  | 25,953 |
Ending balance | $ 191,205 |  | $ 191,205 |

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- Definition Accrued Royalties, Noncurrent + References No definition available. + Details
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Namespace Prefix: | cbus_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- Definition Accrued Royalties + References No definition available. + Details
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Namespace Prefix: | cbus_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Definition Interest Expense, Royalty Liability + References No definition available. + Details
Name: | cbus_InterestExpenseRoyaltyLiability
Namespace Prefix: | cbus_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- Details
Name: | us-gaap_RelatedPartyTransactionsByRelatedPartyAxis=srt_ManagementMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |