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v3.22.0.1

Stock-Based Compensation - Cash Payments Related to the Vesting (Details) - USD ($) $ in Millions | 12 Months Ended
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Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
TSR Performance Share Awards |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Cash payments for share-based compensation | $ 0.0 | $ 14.0 | $ 5.0

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- Definition Represents the cash payment for deferred compensation share based arrangements. + References No definition available. + Details
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Namespace Prefix: | cog_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Details
Name: | us-gaap_AwardTypeAxis=cog_TSRPerformanceSharesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |