Changes in the scope of the consolidated financial statements (Tables) |
12 Months Ended | ||||||||||||||||||||||||||||||||||||||||||||||||||
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Dec. 31, 2018 | |||||||||||||||||||||||||||||||||||||||||||||||||||
| Changes in the scope of the consolidated financial statements [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||
| Amount of assets and liabilities integrated at the effective acquisition date | The amount of assets and liabilities integrated at the effective acquisition date for the aggregated change in scope is shown in the following table:
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