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Leases, as lessee (Details)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2019
USD ($)
Sep. 30, 2018
USD ($)
Sep. 30, 2019
USD ($)
RenewalOption
Sep. 30, 2018
USD ($)
Leases [Abstract]        
Rental expense | $ $ 10,947 $ 5,536 $ 28,323 $ 16,831
Land Site Lease [Member]        
Leases [Abstract]        
Initial lease term [1] 5 years   5 years  
Renewal of lease term [1] 5 years   5 years  
Percentage of annual lease payment escalation [1]     2.50%  
Marine Port Berth Lease One [Member]        
Leases [Abstract]        
Initial lease term 10 years   10 years  
Renewal of lease term 10 years   10 years  
Percentage of annual lease payment escalation     15.00%  
Lease payment escalation term     5 years  
Marine Port Berth Lease Two [Member]        
Leases [Abstract]        
Initial lease term 20 years   20 years  
Renewal of lease term 0 years   0 years  
Marine Port Berth Lease Three [Member]        
Leases [Abstract]        
Initial lease term 25 years   25 years  
Renewal of lease term 20 years   20 years  
LNG Vessel Time Charter One [Member]        
Leases [Abstract]        
Initial lease term 24 months   24 months  
Renewal of lease term 3 months   3 months  
LNG Vessel Time Charter Two [Member]        
Leases [Abstract]        
Initial lease term 7 years   7 years  
Renewal of lease term 0 years   0 years  
Percentage of annual lease payment escalation     2.00%  
Lease payment escalation term     3 years  
LNG Vessel Time Charter Three [Member]        
Leases [Abstract]        
Initial lease term 15 years   15 years  
Renewal of lease term 5 years   5 years  
Non-cancellable lease term     3 years  
LNG Vessel Time Charter Four [Member]        
Leases [Abstract]        
Initial lease term 3 years   3 years  
Renewal of lease term 0 years   0 years  
Office Space Lease One [Member]        
Leases [Abstract]        
Initial lease term 7 years   7 years  
Renewal of lease term 5 years   5 years  
Percentage of annual lease payment escalation     3.00%  
Number of renewal options | RenewalOption     2  
Office Space Lease Two [Member]        
Leases [Abstract]        
Renewal of lease term 1 year   1 year  
Percentage of annual lease payment escalation     5.00%  
[1] Refer to "Note 21. Related party transactions" for additional detail.