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Other assets (Details) - USD ($) $ in Millions | Dec. 31, 2020 | Dec. 31, 2019
--- | --- | ---
Other assets |  |
Energy well equipment, net | $ 5.0 | $ 9.3
Right-of-use assets, net | 2.0 | 2.5
Furniture and fixtures, net | 0.4 | 0.4
Debt issue costs | 1.3 | 1.9
Other | 4.9 |
Other assets | $ 13.6 | $ 14.1

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- Definition The amount of fixtures and fittings, not permanently attached to real property, used in the entity's operations. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Name IAS -Number 16 -IssueDate 2020-01-01 -Paragraph 37 -Subparagraph g -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=16&code=ifrs-tx-2020-en-r&anchor=para_37_g&doctype=Standard -URIDate 2020-01-01 + Details
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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 -Name IFRS -Number 16 -IssueDate 2020-01-01 -Paragraph 53 -Subparagraph j -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=16&code=ifrs-tx-2020-en-r&anchor=para_53_j&doctype=Standard -URIDate 2020-01-01 + Details
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