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Right-Of-Use Assets | 12 Months Ended
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Dec. 31, 2021
Right-Of-Use Assets [Abstract] |
Right-Of-Use Assets | RIGHT-OF-USE ASSETS: The following table details the changes to the net book value of ROU assets during the periods shown:
| Land |  | Buildings |  | Other |  | Total
Balance — January 1, 2020 | $ | 7.0 |  |  | $ | 94.7 |  |  | $ | 2.4 |  |  | $ | 104.1 |
Additions (i) | 0.7 |  |  | 26.9 |  |  | 0.3 |  |  | 27.9 |
Depreciation | (0.6) |  |  | (29.2) |  |  | (0.5) |  |  | (30.3) |
Write-down of assets and lease terminations(ii) | — |  |  | (1.1) |  |  | — |  |  | (1.1) |
Foreign exchange and other | — |  |  | 0.4 |  |  | — |  |  | 0.4 |
Balance — December 31, 2020 | 7.1 |  |  | 91.7 |  |  | 2.2 |  |  | 101.0 |
Additions(i) | 0.1 |  |  | 42.1 |  |  | 0.4 |  |  | 42.6 |
Additions through business combination (note 3) | 4.3 |  |  | 0.8 |  |  | — |  |  | 5.1 |
Depreciation | (0.5) |  |  | (31.0) |  |  | (0.5) |  |  | (32.0) |
Write-down of assets and lease terminations(ii) | — |  |  | (0.3) |  |  | — |  |  | (0.3) |
Foreign exchange and other | (0.3) |  |  | (2.3) |  |  | — |  |  | (2.6) |
Balance — December 31, 2021 | $ | 10.7 |  |  | $ | 101.0 |  |  | $ | 2.1 |  |  | $ | 113.8 |
(i) Additions represent new leases and lease renewals as result of extension of lease terms. Additions for 2021 were reduced by $0.4 (2020 — $4.2) in tenant improvement allowances that we received in connection with a new building lease for one of our Atrenne sites. (ii) During 2021, we recorded $0.3 (2020 — $1.1) (in each case as restructuring charges) to write down certain ROU assets in connection with restructuring actions pertaining to vacated properties, resulting in part from certain sublet recoveries that were lower than the carrying value of the related leases (Sublet Losses). See note 15(a). We review the carrying amount of ROU assets for impairment whenever events or changes in circumstances (triggering events) indicate that the carrying amount of such assets (or the related CGU or CGUs) may not be recoverable. If any such indication exists, we test the carrying amount of such assets or CGUs for impairment. We did not identify any triggering event during the course of 2019, 2020 or 2021 indicating that the carrying amount of our ROU assets or related CGUs may not be recoverable. However, we recorded non-cash restructuring charges in such years to write-down certain ROU assets related to vacated properties (resulting in part from Sublet Losses, defined in footnote (ii) above) in connection with our restructuring activities, as described in footnote (ii) above and note 15(a).

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- Definition The entire disclosure for leases. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 16 -IssueDate 2021-01-01 -Section Presentation -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=16&code=ifrs-tx-2021-en-r&doctype=Standard&dita_xref=IFRS16_g47-50_TI -URIDate 2021-03-24 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 16 -IssueDate 2021-01-01 -Section Disclosure -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=16&code=ifrs-tx-2021-en-r&doctype=Standard&dita_xref=IFRS16_g51-60_TI -URIDate 2021-03-24 + Details
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