Quarterly report pursuant to Section 13 or 15(d)

Subsequent Events - Additional Information (Detail)

v2.4.0.8
Subsequent Events - Additional Information (Detail) (USD $)
 9 Months Ended 9 Months Ended 0 Months Ended 1 Months Ended
Sep. 30, 2013
Dec. 31, 2012
Sep. 30, 2013
Callon Properties
Nov. 08, 2013
Subsequent Event
Oct. 17, 2013
Subsequent Event
Callon Properties
Subsequent Event [Line Items]          
Total cash paid         $ 76,408,000
Percentage of working interest Medussa field         15.00%
Expenses associated with acquisition activities and transition activities     0    
Oil and natural gas properties and equipment - full cost method, amount excluded from amortization 129,584,000 123,503,000     7,200,000
Long-term debt 1,052,984,000 1,087,611,000     76,400,000
Effective interest rate         2.00%
Federal statutory income tax rate 35.00%       35.00%
Credit facility, maximum borrowing capacity before fifth amendment       900,000,000  
Credit facility, maximum borrowing capacity after fifth amendment       1,200,000,000  
Credit facility, borrowing base amount 800,000,000     800,000,000  
Credit agreement expiration date       Nov. 08, 2018  
Line of credit, capacity to issue letters of credit before fifth amendment       100,000,000  
Line of credit, capacity to issue letters of credit after fifth amendment       $ 300,000,000  
Maximum leverage ratio of debt to EBITDA       3.0  
Increase in maximum leverage ratio of debt to EBITDA       3.5  
Minimum current ratio       1.0