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Commitments and Contingencies - German Regulatory Investigation (Details)
€ in Millions, $ in Millions
1 Months Ended 12 Months Ended
Oct. 31, 2015
USD ($)
Oct. 31, 2015
EUR (€)
Dec. 31, 2015
USD ($)
Dec. 31, 2015
EUR (€)
Loss Contingencies [Line Items]        
Litigation Settlement, Amount $ 17.4 € 15.5    
Other Expense        
Loss Contingencies [Line Items]        
Litigation Settlement, Expense     $ 17.4 € 15.5