XML 34 R50.htm IDEA: XBRL DOCUMENT v2.4.1.9

Long-term Debt - Long-Term Debt (Detail) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Debt Instrument [Line Items]
Long-term Debt	$ 1,070,445us-gaap_LongTermDebt	$ 798,700us-gaap_LongTermDebt
Bank credit facility
Debt Instrument [Line Items]
Long-term Debt	375,000us-gaap_LongTermDebt / us-gaap_LongtermDebtTypeAxis = us-gaap_LineOfCreditMember	210,000us-gaap_LongTermDebt / us-gaap_LongtermDebtTypeAxis = us-gaap_LineOfCreditMember
7 3/4% senior notes due 2019
Debt Instrument [Line Items]
Long-term Debt	400,000us-gaap_LongTermDebt / us-gaap_LongtermDebtTypeAxis = crk_SeniorNotesSevenPointSevenFivePercentDueTwoThousandNineteenMember	300,000us-gaap_LongTermDebt / us-gaap_LongtermDebtTypeAxis = crk_SeniorNotesSevenPointSevenFivePercentDueTwoThousandNineteenMember
Premium related to 7 3/4% senior notes due 2019
Debt Instrument [Line Items]
Premium related to 73/4% senior notes due 2019	4,984us-gaap_DebtInstrumentUnamortizedPremium / us-gaap_LongtermDebtTypeAxis = crk_PremiumRelatedToSevenPointSevenFivePercentSeniorNotesDueTwoThousandNineteenMember
9 1/2% senior notes due 2020
Debt Instrument [Line Items]
Long-term Debt	300,000us-gaap_LongTermDebt / us-gaap_LongtermDebtTypeAxis = crk_SeniorNotesNinePointFivePercentDueTwoThousandTwentyMember	300,000us-gaap_LongTermDebt / us-gaap_LongtermDebtTypeAxis = crk_SeniorNotesNinePointFivePercentDueTwoThousandTwentyMember
Discount related to 9 1/2% senior notes due 2020
Debt Instrument [Line Items]
Discount related to 91/2% senior notes due 2020	$ (9,539)us-gaap_DebtInstrumentUnamortizedDiscount / us-gaap_LongtermDebtTypeAxis = crk_DiscountRelatedToSeniorNotesNinePointFivePercentDueTwoThousandTwentyMember	$ (11,300)us-gaap_DebtInstrumentUnamortizedDiscount / us-gaap_LongtermDebtTypeAxis = crk_DiscountRelatedToSeniorNotesNinePointFivePercentDueTwoThousandTwentyMember

X

- Details

Name:	us-gaap_DebtInstrumentLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

The amount of debt discount that was originally recognized at the issuance of the instrument that has yet to be amortized.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 835

-SubTopic 30

-Section 45

-Paragraph 1A

-URI http://asc.fasb.org/extlink&oid=6451184&loc=d3e28541-108399



Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 835

-SubTopic 30

-Section 55

-Paragraph 8

-URI http://asc.fasb.org/extlink&oid=34725769&loc=d3e28878-108400

+ Details

Name:	us-gaap_DebtInstrumentUnamortizedDiscount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Definition

The amount of debt premium that was originally recognized at the issuance of the instrument that has yet to be amortized.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 835

-SubTopic 30

-Section 45

-Paragraph 1A

-URI http://asc.fasb.org/extlink&oid=6451184&loc=d3e28541-108399



Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 835

-SubTopic 30

-Section 55

-Paragraph 8

-URI http://asc.fasb.org/extlink&oid=34725769&loc=d3e28878-108400

+ Details

Name:	us-gaap_DebtInstrumentUnamortizedPremium
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Definition

Carrying amount of long-term debt, net of unamortized discount or premium, including current and noncurrent amounts. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 03

-Paragraph 16

-Article 7



Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.22)

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682



Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 942

-SubTopic 210

-Section S99

-Paragraph 1

-Subparagraph (SX 210.9-03.16)

-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878



Reference 4: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 03

-Paragraph 16

-Article 9



Reference 5: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 20, 22

-Article 5



Reference 6: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 944

-SubTopic 210

-Section S99

-Paragraph 1

-Subparagraph (SX 210.7-03.16)

-URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910

+ Details

Name:	us-gaap_LongTermDebt
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Details

Name:	us-gaap_LongtermDebtTypeAxis=crk_DiscountRelatedToSeniorNotesNinePointFivePercentDueTwoThousandTwentyMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_LongtermDebtTypeAxis=crk_PremiumRelatedToSevenPointSevenFivePercentSeniorNotesDueTwoThousandNineteenMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_LongtermDebtTypeAxis=crk_SeniorNotesNinePointFivePercentDueTwoThousandTwentyMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_LongtermDebtTypeAxis=crk_SeniorNotesSevenPointSevenFivePercentDueTwoThousandNineteenMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_LongtermDebtTypeAxis=us-gaap_LineOfCreditMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: