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Property and Equipment (Details) - USD ($)
3 Months Ended 6 Months Ended
Jun. 30, 2021
Jun. 30, 2020
Jun. 30, 2021
Jun. 30, 2020
Property, Plant and Equipment [Abstract]        
Depreciation expense $ 24,700,000 $ 26,300,000 $ 49,700,000 $ 51,800,000
Impairment on long-lived assets     $ 0