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Summary of Right-of-Use-Assets (Detail) - CAD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Disclosure Of Quantitative Information About Rightofuse Assets [Line Items]
Beginning Balance	$ 55,168	$ 66,142
Additions	3,543	3,167
Derecognition	(480)	(2,597)
Depreciation	(6,575)	(7,417)
Lease reclassification		(3,631)
Effect of foreign currency exchange differences	(216)	(496)
Ending Balance	51,440	55,168
Real Estate [member]
Disclosure Of Quantitative Information About Rightofuse Assets [Line Items]
Beginning Balance	43,689	54,026
Additions	514	136
Derecognition	0	0
Depreciation	(3,566)	(3,900)
Lease reclassification		(6,233)
Effect of foreign currency exchange differences	(174)	(340)
Ending Balance	40,463	43,689
Vehicles and Equipment [Member]
Disclosure Of Quantitative Information About Rightofuse Assets [Line Items]
Beginning Balance	11,479	12,116
Additions	3,029	3,031
Derecognition	(480)	(2,597)
Depreciation	(3,009)	(3,517)
Lease reclassification		2,602
Effect of foreign currency exchange differences	(42)	(156)
Ending Balance	$ 10,977	$ 11,479

X

- Definition

The amount of additions to right-of-use assets. [Refer: Right-of-use assets]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 16
-IssueDate 2021-01-01
-Paragraph 53
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- Definition

The amount of depreciation of right-of-use assets. [Refer: Depreciation and amortisation expense; Right-of-use assets]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 16
-IssueDate 2021-01-01
-Paragraph 53
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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.

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- Definition

The amount of assets that represent a lessee's right to use an underlying asset for the lease term. Underlying asset is an asset that is the subject of a lease, for which the right to use that asset has been provided by a lessor to a lessee.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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-Number 16
-IssueDate 2021-01-01
-Paragraph 53
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X

- Definition

The increase (decrease) in the revaluation surplus that relates to right-of-use assets. [Refer: Revaluation surplus; Right-of-use assets]

+ References

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-IssueDate 2021-01-01
-Paragraph 57
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Derecognition right of use assets.

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Effect of foreign currency exchange differences, right-of-use assets.

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