Intangible Assets - Narrative (Details) - USD ($)
12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Finite-Lived Intangible Assets [Line Items]    
Amortization of intangibles $ 1,600,000  
Minimum    
Finite-Lived Intangible Assets [Line Items]    
Weighted average remaining life of revenue contracts 10 years  
Maximum    
Finite-Lived Intangible Assets [Line Items]    
Weighted average remaining life of revenue contracts 25 years  
Revenue contracts    
Finite-Lived Intangible Assets [Line Items]    
Weighted average remaining life of revenue contracts 17 years  
Intangible Assets, Net (Excluding Goodwill) [Abstract]    
Weighted Average Amortization Period 20 years  
Gross Carrying Amount $ 84,643,000 $ 0
Accumulated Amortization (1,632,000)  
Accumulated Currency Translation Adjustment (12,381,000)  
Net Book Value $ 70,630,000  
Revenue contracts | Minimum    
Finite-Lived Intangible Assets [Line Items]    
Weighted average remaining life of revenue contracts 18 years  
Revenue contracts | Maximum    
Finite-Lived Intangible Assets [Line Items]    
Weighted average remaining life of revenue contracts 22 years  
Reduction of revenue    
Finite-Lived Intangible Assets [Line Items]    
Amortization of intangibles $ 500,000  
Amortization expense    
Finite-Lived Intangible Assets [Line Items]    
Amortization of intangibles $ 1,100,000