XML 45 R31.htm IDEA: XBRL DOCUMENT v3.7.0.1
Long-Term Debt Revolving Credit Facility (Details)
$ in Thousands
 3 Months Ended
Mar. 31, 2017
USD ($)
Apr. 26, 2017
USD ($)
Dec. 31, 2016
USD ($)
Line of Credit Facility [Line Items]      
Long-term Line of Credit, Noncurrent $ 0   $ 0
Line of Credit [Member] | Revolving Credit Facility [Member]      
Line of Credit Facility [Line Items]      
Line of Credit Facility, Maximum Borrowing Capacity 2,500,000    
Accelerated Amortization of Debt Issuance Costs Related To Borrowing Base And Lender Commitment Revisions 1,100    
Long-term Line of Credit, Noncurrent [1] 0   0
Letters of Credit Outstanding, Amount [2] 200   200
Line of Credit Facility, Remaining Borrowing Capacity 924,800   1,164,800
Line of Credit Facility, Current Borrowing Capacity 925,000   1,165,000
Unamortized Debt Issuance Expense $ 4,300   $ 5,900
Maximum [Member] | Line of Credit [Member] | Revolving Credit Facility [Member]      
Line of Credit Facility [Line Items]      
Debt Instrument, Covenant Compliance, Senior Secured Debt To Adjusted EBITDAX Ratio 2.75    
Minimum [Member] | Line of Credit [Member] | Revolving Credit Facility [Member]      
Line of Credit Facility [Line Items]      
Debt Instrument, Covenant Compliance, Adjusted Current Ratio 1.0    
Debt Instrument, Covenant Compliance, Adjusted EBITDAX To Interest Expense 2.0    
Subsequent Event [Member] | Line of Credit [Member] | Revolving Credit Facility [Member]      
Line of Credit Facility [Line Items]      
Long-term Line of Credit, Noncurrent [1]   $ 0  
Letters of Credit Outstanding, Amount [2]   200  
Line of Credit Facility, Remaining Borrowing Capacity   924,800  
Line of Credit Facility, Current Borrowing Capacity   $ 925,000  
[1] Unamortized deferred financing costs attributable to the credit facility are presented as a component of other noncurrent assets on the accompanying balance sheets and totaled $4.3 million and $5.9 million as of March 31, 2017, and December 31, 2016, respectively.
[2] Letters of credit outstanding reduce the amount available under the credit facility on a dollar-for-dollar basis.