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Impairments of Long-Lived Assets (Details) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2021
Mar. 31, 2020
Impaired Long-Lived Assets Held and Used [Line Items]    
Impairments of operating lease assets $ 0 $ 9,483
Cost of Sales    
Impaired Long-Lived Assets Held and Used [Line Items]    
Impairments of operating lease assets 8,600 8,600
Selling, General and Administrative Expenses    
Impaired Long-Lived Assets Held and Used [Line Items]    
Impairments of operating lease assets $ 900 $ 900