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Summary of Property, Plant, and Equipment Expected Life Salvage Value and Basis of Depreciation (Detail) | 12 Months Ended
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Dec. 31, 2021
Drilling Rig Power and Tubulars Equipment [Member] |
Disclosure of detailed information about property, plant and equipment [Line Items] |
Expected Life | 5 years
Basis of Depreciation | straight-line
Drilling Rig Dynamic Equipment [Member] |
Disclosure of detailed information about property, plant and equipment [Line Items] |
Expected Life | 10 years
Basis of Depreciation | straight-line
Drilling Rig Structural Equipment [Member] |
Disclosure of detailed information about property, plant and equipment [Line Items] |
Expected Life | 20 years
Salvage Value | 10.00%
Basis of Depreciation | straight-line
Service Rig Equipment [Member] |
Disclosure of detailed information about property, plant and equipment [Line Items] |
Expected Life | 20 years
Salvage Value | 10.00%
Basis of Depreciation | straight-line
Drilling Rig Spare Equipment [Member] |
Disclosure of detailed information about property, plant and equipment [Line Items] |
Expected Life | up to 15 years
Basis of Depreciation | straight-line
Service Rig Spare Equipment [Member] |
Disclosure of detailed information about property, plant and equipment [Line Items] |
Expected Life | up to 15 years
Basis of Depreciation | straight-line
Rental Equipment [Member] |
Disclosure of detailed information about property, plant and equipment [Line Items] |
Expected Life | up to 15 years
Basis of Depreciation | straight-line
Rental Equipment [Member] | Top of Range [Member] |
Disclosure of detailed information about property, plant and equipment [Line Items] |
Salvage Value | 25.00%
Rental Equipment [Member] | Bottom Of Range [Member] |
Disclosure of detailed information about property, plant and equipment [Line Items] |
Salvage Value | 0.00%
Other Equipment [Member] |
Disclosure of detailed information about property, plant and equipment [Line Items] |
Expected Life | 3 to 10 years
Basis of Depreciation | straight-line
Light Duty Vehicles [Member] |
Disclosure of detailed information about property, plant and equipment [Line Items] |
Expected Life | 4 years
Basis of Depreciation | straight-line
Heavy Duty Vehicles [Member] |
Disclosure of detailed information about property, plant and equipment [Line Items] |
Expected Life | 7 to 10 years
Basis of Depreciation | straight-line
Buildings [Member] |
Disclosure of detailed information about property, plant and equipment [Line Items] |
Expected Life | 10 to 20 years
Basis of Depreciation | straight-line

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- Definition The depreciation method used for property, plant and equipment. [Refer: Property, plant and equipment] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 16 -IssueDate 2021-01-01 -Paragraph 73 -Subparagraph b -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=16&code=ifrs-tx-2021-en-r&anchor=para_73_b&doctype=Standard -URIDate 2021-03-24 + Details
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Balance Type: | na
Period Type: | duration

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- Definition Description of useful life used for property, plant and equipment. [Refer: Property, plant and equipment] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 16 -IssueDate 2021-01-01 -Paragraph 73 -Subparagraph c -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=16&code=ifrs-tx-2021-en-r&anchor=para_73_c&doctype=Standard -URIDate 2021-03-24 + Details
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- Definition Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with members defined in one or many axes of the table. + References No definition available. + Details
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- Definition Property plant and equipment salvage value percentage. + References No definition available. + Details
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- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
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Namespace Prefix: |
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Balance Type: |
Period Type: |

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- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
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- Details
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Namespace Prefix: |
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- Details
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- Details
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- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
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Namespace Prefix: |
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- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
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- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
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- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |