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Leases - Schedule of Lease Expenses and Other Information (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2021
Jun. 30, 2020
Jun. 30, 2021
Jun. 30, 2020
Lessee, Lease, Description [Line Items]        
Weighted-average discount rate 4.65%   4.65%  
Weighted-average remaining lease term (years) 122 months   122 months  
Lease costs        
Operating lease cost $ 842 $ 1,527 $ 1,715 $ 5,832
Variable lease cost 13 3,278 22 4,485
Short-term lease cost 9,973 11,192 17,167 29,017
Total lease cost $ 10,828 $ 15,997 $ 18,904 $ 39,334