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Income Taxes - Additional Information (Detail) - U.S. Federal $ in Billions	12 Months Ended
	Dec. 31, 2024 USD ($)
Income Taxes [Line Items]
Net operating loss expiration period	20 years
Net operating loss carryforwards expiring year	2037
Estimated NOL carryforwards to expire unused	$ 1.2

X

- Definition

Estimated net operating loss tax credit carryforwards to expire unused amount.

+ References

No definition available.

+ Details

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Namespace Prefix:	crk_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Definition

Income taxes.

+ References

No definition available.

+ Details

Name:	crk_IncomeTaxesLineItems
Namespace Prefix:	crk_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Net operating loss carryforwards expiring year.

+ References

No definition available.

+ Details

Name:	crk_NetOperatingLossCarryforwardsExpiringYear
Namespace Prefix:	crk_
Data Type:	xbrli:gYearItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Net operating loss expiration period.

+ References

No definition available.

+ Details

Name:	crk_NetOperatingLossExpirationPeriod
Namespace Prefix:	crk_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

X

- Details

Name:	us-gaap_IncomeTaxAuthorityAxis=us-gaap_DomesticCountryMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: