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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Schedule of Derivative Contracts Volume and Prices (Detail)	9 Months Ended
	Sep. 30, 2023 MMBTU $ / Mcf
Natural Gas Price Swap Contracts:
Derivative [Line Items]
Volume (in MMBTU) | MMBTU	91,500,000
Average price (in dollars per MMBtu)	3.55
Natural Gas Price Swap Contracts: | Swap Contracts for 2023
Derivative [Line Items]
Volume (in MMBTU) | MMBTU	0
Natural Gas Price Swap Contracts: | Swap Contracts for 2024
Derivative [Line Items]
Volume (in MMBTU) | MMBTU	91,500,000
Average price (in dollars per MMBtu)	3.55
Natural Gas Price Collar Contracts:
Derivative [Line Items]
Volume (in MMBTU) | MMBTU	23,000,000
Average ceiling (dollars per unit)	10.28
Average floor (dollars per unit)	3
Natural Gas Price Collar Contracts: | Collar Contracts for 2023
Derivative [Line Items]
Volume (in MMBTU) | MMBTU	23,000,000
Average ceiling (dollars per unit)	10.28
Average floor (dollars per unit)	3

X

- Definition

The average cap rate on a group of price risk derivatives such as caps or collars. A payment or receipt is triggered if the market rate exceeds the cap rate on the contract.

+ References

No definition available.

+ Details

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X

- Definition

The average floor rate on a group of price risk derivatives such as floors or collars. A payment or receipt is triggered if the market rate falls below the floor rate on the contract.

+ References

No definition available.

+ Details

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X

- Definition

The average forward price on the group of price risk forward or futures contracts, such as gas futures contracts.

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
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X

- 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

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 815
-SubTopic 40
-Name Accounting Standards Codification
-Section 50
-Paragraph 5
-Subparagraph (f)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480237/815-40-50-5

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X

- Definition

Nominal energy measure used to calculate payments on a derivative instrument.

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	dtr-types:energyItemType
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X

- Details

Name:	us-gaap_DerivativeInstrumentRiskAxis=crk_BasisSwapNaturalGasSwapContractsMember
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- Details

Name:	us-gaap_TradingActivityByTypeAxis=crk_SwapContractsForYearOneMember
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- Details

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- Details

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- Details

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