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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Recently Issued and Adopted Accounting Standards (Details) - USD ($) $ in Millions | Dec. 31, 2021 | Dec. 31, 2020
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Accounting Policies [Abstract] |  |
Joint interest receivables, allowance | $ 3.7 | $ 0.4

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- Definition Oil And Gas Joint Interest Billing Receivables, Allowance + References No definition available. + Details
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Namespace Prefix: | civi_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- References No definition available. + Details
Name: | us-gaap_AccountingPoliciesAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration