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Property, plant and equipment (Details 2) - CLP ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2020 | Dec. 31, 2019
Statement [Line Items] |  |
Depreciation expense | $ 100,696,200 | $ 96,959,401
Recognized in net incomes [Member] |  |
Statement [Line Items] |  |
Depreciation expense | 99,803,814 | 95,453,146
Recognized in others assets [Member] |  |
Statement [Line Items] |  |
Depreciation expense | $ 892,386 | $ 1,506,255

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- Definition The amount of depreciation expense. Depreciation is the systematic allocation of depreciable amounts of tangible assets over their useful lives. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2020-01-01 -Paragraph 112 -Subparagraph c -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2020-en-r&anchor=para_112_c&doctype=Standard -URIDate 2020-01-01 + Details
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