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Significant Accounting Policies (Tables)
 12 Months Ended
Dec. 31, 2022
Disclosure Of Significant Accounting Policies [Abstract]  
Schedule of Property, Plant and Equipment Depreciation
Property, plant, and equipment are depreciated as follows:
 
     
Expected Life
   
Salvage Value
  
Basis of
Depreciation
Drilling rig equipment:
   
 
   
 
  
 
– Power & Tubulars
    5 years    –     straight-line
– Dynamic
    10 years    –     straight-line
– Structural
    20 years    10%   straight-line
Service rig equipment
    20 years    10%   straight-line
Drilling rig spare equipment
    up to 15 years    –     straight-line
Service rig spare equipment
    up to 15 years    –     straight-line
Rental equipment
    up to 15 years    0 to 25%  
straight-line
Other equipment
    3 to 10 years    –     straight-line
Light duty vehicles
    4 years    –     straight-line
Heavy duty vehicles
    7 to 10 years    –     straight-line
Buildings
    10 to 20 years    –     straight-line