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Restructuring - Cost (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2020
Jun. 30, 2019
Jun. 30, 2020
Jun. 30, 2019
Restructuring Cost and Reserve [Line Items]        
Lease impairment loss     $ 4,771  
Loss on termination of lease     137  
Operation Simplification and Optimization Program        
Restructuring Cost and Reserve [Line Items]        
Restructuring charges $ 12,522 $ 0 20,276 $ 0
Severance and Related Benefit Costs | Operation Simplification and Optimization Program        
Restructuring Cost and Reserve [Line Items]        
Restructuring charges 4,865 0 11,438 0
Exit and Disposal Costs | Operation Simplification and Optimization Program        
Restructuring Cost and Reserve [Line Items]        
Restructuring charges 2,749 0 3,930 0
Lease Exist Cost Including Impairment | Operation Simplification and Optimization Program        
Restructuring Cost and Reserve [Line Items]        
Restructuring charges $ 4,908 $ 0 $ 4,908 $ 0