XML 65 R47.htm IDEA: XBRL DOCUMENT
v3.6.0.2

Long-term Debt - Long-term Debt (Detail) - USD ($) $ in Thousands | Dec. 31, 2016 | Sep. 06, 2016 | Dec. 31, 2015
--- | --- | --- | ---
Debt Instrument [Line Items] |  |  |
Principal | $ 1,165,433 |  |
Debt issuance costs, net of amortization | (16,183) |  | $ (19,670)
Long-term Debt | 1,044,506 |  | 1,249,330
10 % Senior Secured Toggle Notes due 2020 |  |  |
Debt Instrument [Line Items] |  |  |
Principal | 697,195 |  |
Discount, net of amortization | (11,955) |  |
7 3/4% Senior Notes due 2019 |  |  |
Debt Instrument [Line Items] |  |  |
Principal | 17,959 | $ 18,000 | 376,090
Premium, net of amortization | 118 |  | 3,583
7 3/4% Convertible Second Lien PIK Notes due 2019 |  |  |
Debt Instrument [Line Items] |  |  |
Principal | 268,432 |  |
Accrued interest payable in kind | 6,645 |  |
Discount, net of amortization | (61,230) |  |
9 1/2% Senior Notes due 2020 |  |  |
Debt Instrument [Line Items] |  |  |
Principal | 4,860 | 4,900 | 194,367
Discount, net of amortization | (98) |  | (5,040)
9½ % Convertible Second Lien PIK Notes due 2020 |  |  |
Debt Instrument [Line Items] |  |  |
Principal | 174,182 |  |
Accrued interest payable in kind | 735 |  |
Discount, net of amortization | (38,959) |  |
10 % Senior Secured Notes due 2020 |  |  |
Debt Instrument [Line Items] |  |  |
Principal | $ 2,805 | $ 2,800 | $ 700,000

X
- Definition Long term debt principal amount. + References No definition available. + Details
Name: | crk_LongTermDebtPrincipalAmount
Namespace Prefix: | crk_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Payable in kind accrued interest. + References No definition available. + Details
Name: | crk_PayableInKindAccruedInterest
Namespace Prefix: | crk_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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

X
- Definition Amount, after accumulated amortization, of debt discount. + 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=64930785&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=64930739&loc=d3e28878-108400 + Details
Name: | us-gaap_DebtInstrumentUnamortizedDiscount
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount, after accumulated amortization, of debt premium. + 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=64930785&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=64930739&loc=d3e28878-108400 + Details
Name: | us-gaap_DebtInstrumentUnamortizedPremium
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount after unamortized (discount) premium and debt issuance costs of long-term debt classified as noncurrent and excluding amounts to be repaid within one year or the normal operating cycle, if longer. 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 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 + Details
Name: | us-gaap_LongTermDebtNoncurrent
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition The remaining balance of debt issuance expenses that were capitalized and are being amortized against income over the lives of the respective bond issues. This does not include the amounts capitalized as part of the cost of the utility plant or asset. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.17) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
Name: | us-gaap_UnamortizedDebtIssuanceExpense
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Details
Name: | us-gaap_DebtInstrumentAxis=crk_SeniorSecuredToggleNotesTenPercentDueTwoThousandTwentyMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=crk_SeniorNotesSevenPointSevenFivePercentDueTwoThousandNineteenMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=crk_ConvertibleSecondLienPaymentInKindNotesSevenPointSevenFivePercentDueTwoThousandNineteenMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=crk_SeniorNotesNinePointFivePercentDueTwoThousandTwentyMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=crk_ConvertibleSecondLienPaymentInKindNotesNinePointFivePercentDueTwoThousandTwentyMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=crk_SeniorSecuredNotesTenPercentDueTwoThousandTwentyMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |