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Summary of Reconciliation of Disaggregated Revenue by Type of Service Provided (Detail) - CAD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Disclosure Of Disaggregation Of Revenue From Contracts With Customers [Line Items]    
Revenue $ 1,937,854 $ 1,617,194
Contract Drilling Services [Member]    
Disclosure Of Disaggregation Of Revenue From Contracts With Customers [Line Items]    
Revenue 1,704,265 1,436,134
Completion and Production Services [Member]    
Disclosure Of Disaggregation Of Revenue From Contracts With Customers [Line Items]    
Revenue 240,716 187,171
Inter-Segment Eliminations [Member]    
Disclosure Of Disaggregation Of Revenue From Contracts With Customers [Line Items]    
Revenue (7,127) (6,111)
Day Rate Or Hourly Services [Member]    
Disclosure Of Disaggregation Of Revenue From Contracts With Customers [Line Items]    
Revenue 1,901,941 1,580,817
Day Rate Or Hourly Services [Member] | Contract Drilling Services [Member]    
Disclosure Of Disaggregation Of Revenue From Contracts With Customers [Line Items]    
Revenue 1,661,762 1,394,394
Day Rate Or Hourly Services [Member] | Completion and Production Services [Member]    
Disclosure Of Disaggregation Of Revenue From Contracts With Customers [Line Items]    
Revenue 240,716 187,171
Day Rate Or Hourly Services [Member] | Inter-Segment Eliminations [Member]    
Disclosure Of Disaggregation Of Revenue From Contracts With Customers [Line Items]    
Revenue (537) (748)
Shortfall Payments Or Idle But Contracted [Member]    
Disclosure Of Disaggregation Of Revenue From Contracts With Customers [Line Items]    
Revenue 24,602 2,153
Shortfall Payments Or Idle But Contracted [Member] | Contract Drilling Services [Member]    
Disclosure Of Disaggregation Of Revenue From Contracts With Customers [Line Items]    
Revenue 24,602 2,153
Turnkey Drilling Services [Member]    
Disclosure Of Disaggregation Of Revenue From Contracts With Customers [Line Items]    
Revenue 8,988 31,723
Turnkey Drilling Services [Member] | Contract Drilling Services [Member]    
Disclosure Of Disaggregation Of Revenue From Contracts With Customers [Line Items]    
Revenue 8,988 31,723
Other [Member]    
Disclosure Of Disaggregation Of Revenue From Contracts With Customers [Line Items]    
Revenue 2,323 2,501
Other [Member] | Contract Drilling Services [Member]    
Disclosure Of Disaggregation Of Revenue From Contracts With Customers [Line Items]    
Revenue 8,913 7,864
Other [Member] | Inter-Segment Eliminations [Member]    
Disclosure Of Disaggregation Of Revenue From Contracts With Customers [Line Items]    
Revenue $ (6,590) $ (5,363)