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Long-Term Debt (Tables)
 9 Months Ended
Sep. 30, 2013
Debt Disclosure [Abstract]  
Schedule of Long-Term Debt Interest Rate
As of September 30, 2013, any outstanding LIBOR and ABR loans bore their respective interest rates plus the applicable margin indicated in the following table:
 
Ratio of Total Outstanding Borrowings to Borrowing Base
 
Applicable Margin
for LIBOR Loans
 
Applicable Margin
for ABR Loans
Less than .25 to 1
 
1.50
%
 
0.00
%
Greater than or equal to .25 to 1 but less than .50 to 1
 
1.75
%
 
0.25
%
Greater than or equal to .50 to 1 but less than .75 to 1
 
2.00
%
 
0.50
%
Greater than or equal to .75 to 1 but less than .90 to 1
 
2.25
%
 
0.75
%
Greater than .90 to 1 but less than or equal 1
 
2.50
%
 
1.00
%