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Leases - Schedule of Lease Cost and Other Information (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Lease cost:      
Operating lease cost $ 29,574 $ 33,126  
Short-term lease cost 11,363 24,634  
Amortization of leasehold interests in land 13,885 13,373  
Variable lease cost 194 1,487  
Finance lease interest cost 1,604 1,058  
Total lease cost 56,620 73,678  
Supplemental cash flow disclosures:      
Operating lease liabilities arising from obtaining operating lease assets 11,625 45,435  
Finance lease liabilities arising from obtaining finance lease assets 56,215 1,413  
Cash paid for amounts included in the measurement of lease liabilities:      
Cash used in operating activities - Operating leases 28,873 30,409  
Cash used in financing activities - Finance leases $ 5,916 $ 73 $ 0
Other information:      
Weighted-average remaining lease term - Operating leases 43 years 10 months 24 days 35 years 4 months 24 days  
Weighted-average remaining lease term - Finance leases 13 years 7 months 6 days 42 years 9 months 18 days  
Weighted-average discount rate - Operating leases 6.50% 6.40%  
Weighted-average discount rate - Finance leases 4.50% 6.20%