Quarterly report pursuant to Section 13 or 15(d)

Acquisitions (Unaudited Pro Forma Financial Information) (Details)

v2.4.1.9
Acquisitions (Unaudited Pro Forma Financial Information) (Details) (Central Midland Basin [Member], USD $)
In Thousands, except Per Share data, unless otherwise specified
3 Months Ended
Mar. 31, 2014
Central Midland Basin [Member]
 
Business Acquisition [Line Items]  
Revenues $ 43,184us-gaap_BusinessAcquisitionsProFormaRevenue
/ us-gaap_BusinessAcquisitionAxis
= cpe_CentralMidlandBasinMember
Income from operations 12,357us-gaap_BusinessAcquisitionsProFormaIncomeLossFromContinuingOperationsBeforeChangesInAccountingAndExtraordinaryItemsNetOfTax
/ us-gaap_BusinessAcquisitionAxis
= cpe_CentralMidlandBasinMember
Income available to common stockholders $ 791us-gaap_BusinessAcquisitionsProFormaNetIncomeLoss
/ us-gaap_BusinessAcquisitionAxis
= cpe_CentralMidlandBasinMember
Basic $ 0.01us-gaap_BusinessAcquisitionProFormaEarningsPerShareBasic
/ us-gaap_BusinessAcquisitionAxis
= cpe_CentralMidlandBasinMember
Diluted $ 0.01us-gaap_BusinessAcquisitionProFormaEarningsPerShareDiluted
/ us-gaap_BusinessAcquisitionAxis
= cpe_CentralMidlandBasinMember