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Long Term Debt (Details Textuals) (USD $)
3 Months Ended9 Months Ended1 Months Ended1 Months Ended9 Months Ended
Sep. 30, 2011
Sep. 30, 2010
Sep. 30, 2011
Sep. 30, 2010
Mar. 31, 2010
Sep. 30, 2011
7.5% Senior Subordinated Notes due 2013 [Member]
Feb. 28, 2011
7.5% Senior Subordinated Notes due 2013 [Member]
Dec. 31, 2010
7.5% Senior Subordinated Notes due 2013 [Member]
Mar. 31, 2011
7.5% Senior Subordinated Notes due 2013 [Member]
Extinguishment One [Member]
Apr. 30, 2011
7.5% Senior Subordinated Notes due 2013 [Member]
Extinguishment Two [Member]
Sep. 30, 2011
7.5% Senior Subordinated Notes due 2015 [Member]
Feb. 28, 2011
7.5% Senior Subordinated Notes due 2015 [Member]
Dec. 31, 2010
7.5% Senior Subordinated Notes due 2015 [Member]
Mar. 31, 2011
7.5% Senior Subordinated Notes due 2015 [Member]
Extinguishment One [Member]
Mar. 31, 2011
7.5% Senior Subordinated Notes due 2015 [Member]
Extinguishment Two [Member]
Sep. 30, 2011
9.5% Senior Subordinated Notes due 2016 [Member]
Dec. 31, 2010
9.5% Senior Subordinated Notes due 2016 [Member]
Sep. 30, 2011
9.75% Senior Subordinated Notes due 2016 [Member]
Dec. 31, 2010
9.75% Senior Subordinated Notes due 2016 [Member]
Sep. 30, 2011
6 3/8% Senior Subordinated Notes Due 2021 [Member]
Feb. 28, 2011
6 3/8% Senior Subordinated Notes Due 2021 [Member]
Sep. 30, 2011
Other Subordinated Notes [Member]
Dec. 31, 2010
Other Subordinated Notes [Member]
Long Term Debt (Textuals) [Abstract]                       
Interest in guarantor subsidiaries100.00% 100.00%                    
Debt Instrument, Interest Rate Terms  the margin on outstanding Eurodollar loans bears interest at the Eurodollar rate (as defined in the Bank Credit Agreement) plus the applicable margin of 1.5% to 2.5% (previously 2.0% to 3.0%) based on the ratio of outstanding borrowings to the borrowing base, and the base rate loans bear interest at the base rate (as defined in the Bank Credit Agreement) plus the applicable margin of 0.5% to 1.5% (previously 1.0% to 1.5%) based on the ratio of outstanding borrowings to the borrowing base If the borrowing base were to be less than outstanding borrowings under the Bank Credit Agreement, we would be required to repay the deficit over a period of four months                    
Commitment fee incurred  ranging between 0.375% and 0.5% on the unused portion of the credit facility or if less, the borrowing base                    
Line of Credit Facility, Covenant Terms  adjusts the maximum permitted ratio of debt to adjusted EBITDA of Denbury and its subsidiaries from 4.0x to 4.25x                    
Maturity date of Denbury Credit Agreement  May 2016                    
Debt Instrument Redemption Price In Year Five                   103.188%   
Debt Instrument Redemption Price Prior to Year Five  equal to 100% of the principal amount plus a “make-whole” premium and accrued and unpaid interest                    
Debt Instrument Carrying Amount                    $ 400,000,000  
Interest Rate on Senior Subordinated Notes                   6.375%   
Debt Instrument, Unamortized Discount     0 437,000         18,925,00022,139,000    
Principal amount of notes for which cash tender offers commenced      225,000,000    300,000,000           
Borrowing Base of Denbury credit agreement    1,600,000,000                  
Debt Instrument, Unamortized Premium          0 427,000  12,538,00014,589,000    35,00041,000
Net proceeds used for repurchase of notes  393,000,000                    
Debt Instrument Redemption Price In Year Six                   102.125%   
Debt Instrument Redemption Price In Year Seven                   101.062%   
Debt Instrument Redemption Price In Year Eight                   100.00%   
Debt Instrument Redemption Percentage Of Principal Prior To Year Three                   35.00%   
Debt Instrument Redemption Price Before Year Three With Equity Offering Proceeds                   106.375%   
Debt Instrument Redemption Percentage Of Principal Prior To Year Five With Make-Whole Premium                   100.00%   
Extinguishment of Debt [Line Items]                       
Extinguishment of Senior Notes        169,600,00055,400,000   220,900,00079,100,000        
Redemption percentage of debt        100.625%100.00%   104.125%103.75%        
Loss on early extinguishment of debt$ 0$ 0$ 16,131,000$ 0