XML 22 R50.htm IDEA: XBRL DOCUMENT v2.4.0.8
Intangible Assets (Details) (USD $)
 0 Months Ended 3 Months Ended 9 Months Ended
Apr. 01, 2014
Sep. 30, 2014
Sep. 30, 2013
Sep. 30, 2014
Sep. 30, 2013
Intangible Assets          
Amortization and impairment expenses of intangible assets   $ 28,700,000 $ 32,700,000 $ 84,200,000 $ 98,100,000
Goodwill, Impairment Loss       0  
Tax deduction period for goodwill and client relationships amortization expense 15 years        
Annual amortization expense attributable to current equity method Affiliates for next five years          
2014   120,000,000   120,000,000  
2015   120,000,000   120,000,000  
2016   120,000,000   120,000,000  
Goodwill, Period Increase (Decrease)       0  
EIG Global Energy Partners, LLC
          
Intangible Assets          
Acquired client relationships 115,000,000        
Acquired Client Relationships
          
Intangible Assets          
Weighted average life       10 years  
Amortization and impairment expenses of intangible assets   28,700,000 32,700,000 84,200,000 98,100,000
Annual amortization expense attributable to current equity method Affiliates for next five years          
2017   120,000,000   120,000,000  
2018   120,000,000   120,000,000  
Acquired Client Relationships | EIG Global Energy Partners, LLC
          
Intangible Assets          
Weighted average life       12 years  
Amortization and impairment expenses of intangible assets   7,300,000 10,400,000 20,000,000 31,100,000
Annual amortization expense attributable to current equity method Affiliates for next five years          
2014   26,400,000   26,400,000  
2015   20,200,000   20,200,000  
2016   17,600,000   17,600,000  
2017   17,700,000   17,700,000  
2018   $ 17,700,000   $ 17,700,000