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Intangible Assets - Gross Balance (Details) $ in Thousands, $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2018 USD ($) | Dec. 31, 2018 CLP ($) | Dec. 31, 2017 CLP ($) | Dec. 31, 2016 CLP ($)
Changes in intangible assets |  |  |  |
Intangible assets and goodwill at beginning of period |  | $ 72,455 | $ 65,036 |
Intangible assets and goodwill at end of period | $ 123,228 | 85,471 | 72,455 | $ 65,036
Goodwill generated in the business combination |  | 16,714 | 16,714 |
Citibank Chile |  |  |  |
Changes in intangible assets |  |  |  |
Goodwill generated in the business combination |  | 12,576 |  |
Gross Balance |  |  |  |
Changes in intangible assets |  |  |  |
Intangible assets and goodwill at beginning of period |  | 195,443 | 182,454 | 172,963
Acquisitions |  | 23,512 | 18,779 | 11,248
Disposals |  | (1,024) | (5,790) | (1,757)
Intangible assets and goodwill at end of period |  | 217,931 | 195,443 | 182,454
Goodwill |  |  |  |
Changes in intangible assets |  |  |  |
Intangible assets and goodwill at beginning of period |  | 16,714 | 16,714 |
Intangible assets and goodwill at end of period |  | 16,714 | 16,714 | 16,714
Goodwill | Gross Balance |  |  |  |
Changes in intangible assets |  |  |  |
Intangible assets and goodwill at beginning of period |  | 16,714 | 16,714 | 16,714
Intangible assets and goodwill at end of period |  | 16,714 | 16,714 | 16,714
Intangible assets arising from business combinations |  |  |  |
Changes in intangible assets |  |  |  |
Intangible assets and goodwill at beginning of period |  | 16,696 | 18,981 |
Intangible assets and goodwill at end of period |  | 16,696 | 16,696 | 18,981
Intangible assets arising from business combinations | Gross Balance |  |  |  |
Changes in intangible assets |  |  |  |
Intangible assets and goodwill at beginning of period |  | 56,249 | 56,249 | 56,249
Intangible assets and goodwill at end of period |  | 56,249 | 56,249 | 56,249
Software or computer programs |  |  |  |
Changes in intangible assets |  |  |  |
Intangible assets and goodwill at beginning of period |  | 39,045 | 29,341 |
Intangible assets and goodwill at end of period |  | 52,061 | 39,045 | 29,341
Software or computer programs | Gross Balance |  |  |  |
Changes in intangible assets |  |  |  |
Intangible assets and goodwill at beginning of period |  | 122,480 | 109,491 | 100,000
Acquisitions |  | 23,512 | 18,779 | 11,248
Disposals |  | (1,024) | (5,790) | (1,757)
Intangible assets and goodwill at end of period |  | $ 144,968 | $ 122,480 | $ 109,491

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