Annual report pursuant to Section 13 and 15(d)

Leases (Narrative) (Details)

v3.20.4
Leases (Narrative) (Details)
Dec. 31, 2020
Offices | Minimum  
Lessee, Lease, Description [Line Items]  
Term of contract 1 year
Offices | Maximum  
Lessee, Lease, Description [Line Items]  
Term of contract 15 years
Wells Equipment | Minimum  
Lessee, Lease, Description [Line Items]  
Term of contract 1 year
Wells Equipment | Maximum  
Lessee, Lease, Description [Line Items]  
Term of contract 3 years