XML 14 R33.htm IDEA: XBRL DOCUMENT v2.4.0.8
Long-Term Debt (Details) (Senior debt, USD $)
 9 Months Ended 0 Months Ended
Sep. 30, 2014
Dec. 31, 2013
Dec. 13, 2013
Jun. 01, 2012
Sep. 30, 2014
Fiscal quarter ending on or after December 13, 2013 through June 30, 2015
Sep. 30, 2014
Fiscal quarter ending September 30, 2015 and each fiscal quarter thereafter
Sep. 30, 2014
Minimum
Dec. 13, 2013
LIBOR
Jun. 01, 2012
LIBOR
Dec. 13, 2013
LIBOR
Minimum
Jun. 01, 2012
LIBOR
Minimum
Dec. 13, 2013
LIBOR
Maximum
Jun. 01, 2012
LIBOR
Maximum
Long-term debt                          
Long-term debt, current portion $ 0 $ 0                      
Long-term debt 509,681,000 420,933,000                      
Maximum borrowing capacity under the credit agreement before amendment     600,000,000 500,000,000                  
Maximum borrowing capacity under the credit agreement after amendment     850,000,000 600,000,000                  
Variable basis rate               LIBOR LIBOR        
Applicable margin above LIBOR (as a percent)                   1.50% 1.75% 2.25% 2.50%
Amount of further potential increase in maximum capacity     100,000,000                    
Minimum borrowing availability immediately after giving effect to distribution             20,000,000            
Minimum EBITDA to interest coverage ratio 2.5                        
Maximum Funded debt to EBITDA ratio         5.50 5.00              
Increase in maximum funded debt to EBITDA ratio in connection with certain future acquisitions 0.5                        
Consecutive period following the period in which any acquisition occurs for maintaining increased maximum funded debt to EBITDA ratio 6 months                        
Borrowing availability $ 288,400,000                        
Borrowing base percentage representing eligible compression units 96.00% 96.00%