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Investments in Other Companies - Unconsolidated structured entities (Details) $ in Thousands, $ in Millions | 12 Months Ended
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Dec. 31, 2017 USD ($) | Dec. 31, 2017 CLP ($) | Dec. 31, 2016 CLP ($) | Dec. 31, 2015 CLP ($)
Reconciliation of investments in unconsolidated companies |  |  |  |
Balance at beginning of the period |  | $ 30,314 | $ 25,849 | $ 23,043
Capital increase |  |  | 1,129 | 314
Participation in net income | $ 8,955 | 5,511 | 4,019 | 3,243
Dividends received | (786) | (484) | (667) | (663)
Other |  | 430 | (16) | (88)
Balance at end of the period | $ 58,124 | 35,771 | 30,314 | $ 25,849
Impairment incurred |  | $ 0 | $ 0 |

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- Definition The amount of investments in subsidiaries, joint ventures and associates in an entity's separate financial statements. [Refer: Associates [member]; Joint ventures [member]; Subsidiaries [member]; Investments in subsidiaries] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2017-01-01 -Paragraph 55 -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=1&date=2017-03-01&anchor=para_55&doctype=Standard -URIDate 2017-03-09 + Details
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