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Accumulated Other Comprehensive Loss - (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2020
Jun. 30, 2019
Jun. 30, 2020
Jun. 30, 2019
Mar. 31, 2020
Dec. 31, 2019
Mar. 31, 2019
Dec. 31, 2018
Accumulated Other Comprehensive Income (Loss) [Line Items]                
Stockholders' equity $ 778,869 $ 1,419,728 $ 778,869 $ 1,419,728 $ 802,632 $ 1,223,967 $ 1,427,644 $ 1,439,768
Currency translation adjustments $ (1,230) (2,329) $ (16,021) 137        
United Kingdom, Pounds                
Accumulated Other Comprehensive Income (Loss) [Line Items]                
Exchange rate strengthened (weakened) (6.00%)   (6.00%)          
Brazil, Brazil Real                
Accumulated Other Comprehensive Income (Loss) [Line Items]                
Exchange rate strengthened (weakened) (27.00%)   (27.00%)          
Accumulated Other Comprehensive Loss                
Accumulated Other Comprehensive Income (Loss) [Line Items]                
Stockholders' equity $ (83,767) $ (71,260) $ (83,767) $ (71,260) $ (82,537) $ (67,746) $ (68,931) $ (71,397)