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Summary of Reconciliation of Disaggregated Revenue by Type of Service Provided (Detail) - CAD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2021 | Dec. 31, 2020
Disclosure Of Disaggregation Of Revenue From Contracts With Customers [Line Items] |  |  |
Revenue | $ 986,847 |  | $ 935,753
Contract Drilling Services [Member] |  |  |
Disclosure Of Disaggregation Of Revenue From Contracts With Customers [Line Items] |  |  |
Revenue | 877,943 |  | 861,202
Completion and Production Services [Member] |  |  |
Disclosure Of Disaggregation Of Revenue From Contracts With Customers [Line Items] |  |  |
Revenue | 113,488 |  | 77,251
Inter- Segment Eliminations [Member] |  |  |
Disclosure Of Disaggregation Of Revenue From Contracts With Customers [Line Items] |  |  |
Revenue | (4,584) |  | (2,700)
Day Rate Or Hourly Services [Member] |  |  |
Disclosure Of Disaggregation Of Revenue From Contracts With Customers [Line Items] |  |  |
Revenue | 958,858 |  | 856,630
Day Rate Or Hourly Services [Member] | Contract Drilling Services [Member] |  |  |
Disclosure Of Disaggregation Of Revenue From Contracts With Customers [Line Items] |  |  |
Revenue | 845,832 |  | 779,772
Day Rate Or Hourly Services [Member] | Completion and Production Services [Member] |  |  |
Disclosure Of Disaggregation Of Revenue From Contracts With Customers [Line Items] |  |  |
Revenue | 113,488 |  | 77,251
Day Rate Or Hourly Services [Member] | Inter- Segment Eliminations [Member] |  |  |
Disclosure Of Disaggregation Of Revenue From Contracts With Customers [Line Items] |  |  |
Revenue | (462) |  | (393)
Shortfall Payments Or Idle But Contracted [Member] |  |  |
Disclosure Of Disaggregation Of Revenue From Contracts With Customers [Line Items] |  |  |
Revenue | 543 |  | 51,028
Shortfall Payments Or Idle But Contracted [Member] | Contract Drilling Services [Member] |  |  |
Disclosure Of Disaggregation Of Revenue From Contracts With Customers [Line Items] |  |  |
Revenue | 543 |  | 51,028
Turnkey Drilling Services [Member] |  |  |
Disclosure Of Disaggregation Of Revenue From Contracts With Customers [Line Items] |  |  |
Revenue | 17,086 |  | 14,134
Turnkey Drilling Services [Member] | Contract Drilling Services [Member] |  |  |
Disclosure Of Disaggregation Of Revenue From Contracts With Customers [Line Items] |  |  |
Revenue | 17,086 |  | 14,134
Directional Services [Member] |  |  |
Disclosure Of Disaggregation Of Revenue From Contracts With Customers [Line Items] |  |  |
Revenue | 7,871 | [1] | 9,637
Directional Services [Member] | Contract Drilling Services [Member] |  |  |
Disclosure Of Disaggregation Of Revenue From Contracts With Customers [Line Items] |  |  |
Revenue | 7,871 | [1] | 9,637
Other [Member] |  |  |
Disclosure Of Disaggregation Of Revenue From Contracts With Customers [Line Items] |  |  |
Revenue | 2,489 |  | 4,324
Other [Member] | Contract Drilling Services [Member] |  |  |
Disclosure Of Disaggregation Of Revenue From Contracts With Customers [Line Items] |  |  |
Revenue | 6,611 |  | 6,631
Other [Member] | Inter- Segment Eliminations [Member] |  |  |
Disclosure Of Disaggregation Of Revenue From Contracts With Customers [Line Items] |  |  |
Revenue | $ (4,122) |  | $ (2,307)
[1] | Directional drilling disposed in the third quarter of 2021.

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