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Intangible assets | 12 Months Ended
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Dec. 31, 2020
Intangible assets |
Intangible assets | 16.Intangible assets A breakdown of software cost, accumulated amortization, additions, sales and disposals of intangible assets is as follows:
Costs: |  |
Balance as of January 1, 2018 |  | 17,172
Additions |  | 58
Disposals |  | (3,315)
Reclassifications |  | (10)
Balance as of December 31, 2018 |  | 13,905
Additions |  | 496
Balance as of December 31, 2019 |  | 14,401
Additions |  | 1,311
Disposals |  | (1)
Balance as of December 31, 2020 |  | 15,711
Accumulated amortization: |  |
Balance as of January 1, 2018 |  | 11,747
Amortization |  | 1,176
Disposals |  | (609)
Reclassifications |  | (42)
Balance as of December 31, 2018 |  | 12,272
Amortization |  | 702
Balance as of December 31, 2019 |  | 12,974
Amortization |  | 753
Balance as of December 31, 2020 |  | 13,727
Carrying amounts as of: |  |
December 31, 2020 |  | 1,984
December 31, 2019 |  | 1,427
December 31, 2018 |  | 1,633
Expenses related to the amortization of intangible assets are presented as part of amortization of intangible assets in the consolidated statement of profit or loss. Disposals during 2018 correspond to technological projects.

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- Definition The entire disclosure for intangible assets. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 38 -IssueDate 2020-01-01 -Section Disclosure -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=38&code=ifrs-tx-2020-en-r&doctype=Standard&dita_xref=IAS38_g118-128_TI -URIDate 2020-01-01 + Details
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