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Revenue - Summary of Performance Obligations (Detail) - CAD ($) $ in Thousands | 6 Months Ended | 12 Months Ended
--- | --- | ---
Jun. 30, 2022 | Dec. 31, 2021
Disclosure of performance obligations [line items] |  |
Revenue from performance obligations satisfied or partially satisfied in previous periods | $ 1,894,852 | $ 1,658,380
Less than one year [Member] |  |
Disclosure of performance obligations [line items] |  |
Revenue from performance obligations satisfied or partially satisfied in previous periods | 1,007,231 | 748,652
One to two years [Member] |  |
Disclosure of performance obligations [line items] |  |
Revenue from performance obligations satisfied or partially satisfied in previous periods | 159,067 | 155,508
Greater than two years [Member] |  |
Disclosure of performance obligations [line items] |  |
Revenue from performance obligations satisfied or partially satisfied in previous periods | 728,554 | 754,220
Engineered Systems [Member] |  |
Disclosure of performance obligations [line items] |  |
Revenue from performance obligations satisfied or partially satisfied in previous periods | 736,952 | 557,549
Engineered Systems [Member] | Less than one year [Member] |  |
Disclosure of performance obligations [line items] |  |
Revenue from performance obligations satisfied or partially satisfied in previous periods | 736,742 | 556,844
Engineered Systems [Member] | One to two years [Member] |  |
Disclosure of performance obligations [line items] |  |
Revenue from performance obligations satisfied or partially satisfied in previous periods | 210 | 705
Engineered Systems [Member] | Greater than two years [Member] |  |
Disclosure of performance obligations [line items] |  |
Revenue from performance obligations satisfied or partially satisfied in previous periods | 0 | 0
Service [Member] |  |
Disclosure of performance obligations [line items] |  |
Revenue from performance obligations satisfied or partially satisfied in previous periods | 117,097 | 91,294
Service [Member] | Less than one year [Member] |  |
Disclosure of performance obligations [line items] |  |
Revenue from performance obligations satisfied or partially satisfied in previous periods | 42,877 | 33,192
Service [Member] | One to two years [Member] |  |
Disclosure of performance obligations [line items] |  |
Revenue from performance obligations satisfied or partially satisfied in previous periods | 20,317 | 13,437
Service [Member] | Greater than two years [Member] |  |
Disclosure of performance obligations [line items] |  |
Revenue from performance obligations satisfied or partially satisfied in previous periods | 53,903 | 44,665
Energy Infrastructure [Member] |  |
Disclosure of performance obligations [line items] |  |
Revenue from performance obligations satisfied or partially satisfied in previous periods | 1,040,803 | 1,009,537
Energy Infrastructure [Member] | Less than one year [Member] |  |
Disclosure of performance obligations [line items] |  |
Revenue from performance obligations satisfied or partially satisfied in previous periods | 227,612 | 158,616
Energy Infrastructure [Member] | One to two years [Member] |  |
Disclosure of performance obligations [line items] |  |
Revenue from performance obligations satisfied or partially satisfied in previous periods | 138,540 | 141,366
Energy Infrastructure [Member] | Greater than two years [Member] |  |
Disclosure of performance obligations [line items] |  |
Revenue from performance obligations satisfied or partially satisfied in previous periods | $ 674,651 | $ 709,555

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- Definition The amount of revenue from performance obligations satisfied (or partially satisfied) in previous periods. [Refer: Performance obligations [member]; Revenue from contracts with customers] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 15 -IssueDate 2021-01-01 -Paragraph 116 -Subparagraph c -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=15&code=ifrs-tx-2021-en-r&anchor=para_116_c&doctype=Standard -URIDate 2021-03-24 + Details
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