Derivative financial instruments (Tables) |
6 Months Ended | |||||||||||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Jun. 30, 2018 | ||||||||||||||||||||||||||||||||||||||||||||||||||||
| Derivative financial instruments [Abstract] | ||||||||||||||||||||||||||||||||||||||||||||||||||||
| Fair value amount of derivative financial instruments | The breakdown of the fair value amount of the derivative financial instruments as of June 30, 2018 and December 31, 2017 is as follows:
|
|||||||||||||||||||||||||||||||||||||||||||||||||||