SCHEDULE II VALUATION AND QUALIFYING ACCOUNTS - Deferred Tax Asset Valuation Allowance (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2017
Dec. 31, 2016
Dec. 31, 2015
Movement in Valuation Allowances and Reserves      
Deferred tax assets, valuation allowance $ 274,219 $ 136,039  
Release of valuation allowance     $ (32,900)
U.S.      
Movement in Valuation Allowances and Reserves      
Deferred tax assets, valuation allowance 149,200    
France      
Movement in Valuation Allowances and Reserves      
Release of valuation allowance 43,300    
Deferred Tax Asset Valuation Allowance      
Movement in Valuation Allowances and Reserves      
Balance at Beginning of Period 136,039 185,079 168,555
Charges to Costs, Expenses and other 158,857 47,795 41,704
Reversal (12,155) (82,475) (457)
Adjustments (8,522) (14,360) (24,723)
Balance at End of Period 274,219 136,039 $ 185,079
Deferred Tax Asset Valuation Allowance | U.S.      
Movement in Valuation Allowances and Reserves      
Release of valuation allowance   32,900  
Deferred Tax Asset Valuation Allowance | France      
Movement in Valuation Allowances and Reserves      
Charges to Costs, Expenses and other $ 9,700    
Release of valuation allowance   $ 43,300