v3.19.3.a.u2

Other long-term liabilities (Tables) | 12 Months Ended
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Dec. 31, 2019
Other long-term liabilities |
Schedule of other long-term liabilities |
|  | 2019 |  | 2018 |
Long-term contract liability |  | $ | 0.2 |  | $ | — |
Net pension liability |  |  | 1.2 |  |  | 1.2 |
Accrued LTIP and director share units |  |  | 1.6 |  |  | 1.4 |
Other |  |  | 1.7 |  |  | 2.4 |
|  | $ | 4.7 |  | $ | 5.0 |
Rollforward of asset retirement obligations |
|  | 2019 |  | 2018 |
Asset retirement obligations beginning of year |  | $ | 49.2 |  | $ | 45.3 |
Accretion and change in estimate of asset retirement obligation |  |  | 2.3 |  |  | 4.3 |
Acquisition |  |  | — |  |  | 1.8 |
Costs incurred |  |  | (1.0) |  |  | (0.5) |
Translation adjustments |  |  | 1.0 |  |  | (1.7) |
Asset retirement obligations, end of year |  | $ | 51.5 |  | $ | 49.2 |

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- Definition Tabular disclosure of the changes in carrying amount of a liability for asset retirement obligations, for changes such as new obligations, changes in estimates of existing obligations, spending on existing obligations, property dispositions, and foreign currency translation. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 410 -SubTopic 30 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=6393242&loc=d3e13201-110859 + Details
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