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PROPERTY, PLANT AND EQUIPMENT - Narrative (Details)
$ in Thousands
 1 Months Ended 3 Months Ended 9 Months Ended
Nov. 15, 2021
transaction
Sep. 30, 2021
USD ($)
rig
Dec. 31, 2021
USD ($)
month
Sep. 30, 2021
USD ($)
rig
service
Dec. 31, 2020
USD ($)
Jun. 30, 2021
USD ($)
Mar. 31, 2021
rig
Property, Plant and Equipment [Line Items]              
Depreciation expense     $ 98,600   $ 105,100    
Abandonments included in depreciation     1,300   300    
Asset additions     1,025        
Sale of assets held-for-sale     9,657        
Property, plant and equipment, net   $ 3,127,287 3,066,326 $ 3,127,287      
Assets held-for-sale   $ 71,453 62,821 $ 71,453      
Asset impairment charge     4,363   0    
Payments to acquire property, plant and equipment held-for-sale     3,877   0    
Gain on reimbursement of drilling equipment     5,254   2,191    
North America Solutions              
Property, Plant and Equipment [Line Items]              
Asset impairment charge     1,900        
International Solutions              
Property, Plant and Equipment [Line Items]              
Asset impairment charge     2,500        
Offshore Gulf of Mexico              
Property, Plant and Equipment [Line Items]              
Property, plant and equipment, net         2,800    
Total consideration         12,000    
Domestic Non Super Spec Asset Group | North America Solutions              
Property, Plant and Equipment [Line Items]              
Number of rigs, held-for -sale | rig             71
Asset additions           $ 13,500  
Sale of assets held-for-sale     900        
FlexRig4 Asset Group              
Property, Plant and Equipment [Line Items]              
Number of rigs, held-for -sale | rig   8   8      
Property, plant and equipment, net   $ 55,600   $ 55,600      
Total consideration   $ 86,500 $ 86,500        
Period for delivery and commissioning of rigs sold     12 months        
Assets held-for-sale     $ 29,000        
Asset impairment charge     24,000        
Payments to acquire property, plant and equipment held-for-sale     $ 3,900        
FlexRig4 Asset Group | United States              
Property, Plant and Equipment [Line Items]              
Number of rigs, held-for -sale | rig   6   6      
FlexRig4 Asset Group | United Arab Emirates              
Property, Plant and Equipment [Line Items]              
Number of rigs, held-for -sale | rig   2   2      
FlexRig4 Asset Group | North America Solutions              
Property, Plant and Equipment [Line Items]              
Number of rigs, held-for -sale | month     2        
Property, plant and equipment, net     $ 2,000        
Scrap value     $ 100        
FlexRig4 Asset Group | International Solutions              
Property, Plant and Equipment [Line Items]              
Number of rigs, held-for -sale | month     2        
Property, plant and equipment, net     $ 3,400        
Assets held-for-sale     900        
Assets Related To Trucking Services And Casino Running Services | North America Solutions              
Property, Plant and Equipment [Line Items]              
Property, plant and equipment, net   $ 23,200   $ 23,200      
Assets held-for-sale   $ 8,800 6,000 $ 8,800      
Number of services offered | service       2      
Percentage of consolidated revenue   2.80%   2.80%      
Number of transactions | transaction 2            
Gain (loss) on sale of assets     (3,400)        
Inventory Scrap and Obsolete, Capital Spares              
Property, Plant and Equipment [Line Items]              
Gain (loss) on sale of assets     $ 5,300        
Offshore Platform Rig | Offshore Gulf of Mexico              
Property, Plant and Equipment [Line Items]              
Gain (loss) on sale of assets         $ 9,200