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Supplemental Cash Flow Information - Summary of Supplemental Cash Flow Information (Detail) (USD $)
In Thousands, unless otherwise specified
 3 Months Ended
Mar. 31, 2015
Mar. 31, 2014
Noncash Investing Activities [Abstract]    
Increase (decrease) in accrued capital expenditures $ (260,204)us-gaap_CapitalExpendituresIncurredButNotYetPaid $ 47,508us-gaap_CapitalExpendituresIncurredButNotYetPaid
Asset retirement obligation additions and revisions, net 2,703clr_NonCashAssetRetirementObligationAdditions 1,270clr_NonCashAssetRetirementObligationAdditions
Supplemental Cash Flow Elements [Abstract]    
Cash paid for interest 51,790us-gaap_InterestPaid 52,194us-gaap_InterestPaid
Cash paid for income taxes 6us-gaap_IncomeTaxesPaid 0us-gaap_IncomeTaxesPaid
Cash received for income tax refunds $ 50,000us-gaap_ProceedsFromIncomeTaxRefunds $ 5us-gaap_ProceedsFromIncomeTaxRefunds