17. | Intangible assets |
| | Licenses and software | | Other intangibles (1) | | Total | | |||
Cost | | | | | | | | | | |
Balance as of December 31, 2016 | | | 784,320 | | | 138,982 | | | 923,302 | |
Acquisitions | | | 169,545 | | | 6,323 | | | 175,868 | |
Disposals | | | (9,469) | | | - | | | (9,469) | |
Foreign currency translation | | | (1,414) | | | (92) | | | (1,506) | |
Transfers | | | 17,574 | | | 23,339 | | | 40,913 | |
Balance as of December 31, 2017 | | | 960,556 | | | 168,552 | | | 1,129,108 | |
Accumulated amortization | | | | | | | | | | |
Balance as of December 31, 2016 | | | (583,680) | | | (67,490) | | | (651,170) | |
Amortization of the period | | | (89,216) | | | (18,830) | | | (108,046) | |
Disposals | | | 8,744 | | | - | | | 8,744 | |
Foreign currency translation | | | 979 | | | - | | | 979 | |
Transfers | | | (2,242) | | | 2,853 | | | 611 | |
Balance as of December 31, 2017 | | | (665,415) | | | (83,467) | | | (748,882) | |
| | | | | | | | | | |
Net balance as of December 31, 2016 | | | 200,640 | | | 71,492 | | | 272,132 | |
Net balance as of December 31, 2017 | | | 295,141 | | | 85,085 | | | 380,226 | |
Useful life | | | < 5 years | | | < 7 years | | | | |
| | Licenses and software | | Other intangibles (1) | | Total | | |||
Cost | | | | | | | | | | |
Balance as of December 31, 2015 | | | 733,115 | | | 244,063 | | | 977,178 | |
Additions | | | 63,560 | | | 5,693 | | | 69,253 | |
Disposals | | | (29,099) | | | - | | | (29,099) | |
Foreign currency translation | | | (9,359) | | | (149) | | | (9,508) | |
Reclassifications | | | 26,103 | | | (110,625) | | | (84,522) | |
Balance as of December 31, 2016 | | | 784,320 | | | 138,982 | | | 923,302 | |
Accumulated amortization | | | | | | | | | | |
Balance as of December 31, 2015 | | | (533,784) | | | (55,343) | | | (589,127) | |
Amortization expense | | | (81,913) | | | (28,142) | | | (110,055) | |
Disposals | | | 29,097 | | | - | | | 29,097 | |
Foreign currency translation | | | 8,527 | | | 1 | | | 8,528 | |
Reclassifications | | | (5,607) | | | 15,994 | | | 10,387 | |
Balance as of December 31, 2016 | | | (583,680) | | | (67,490) | | | (651,170) | |
| | | | | | | | | | |
Balance as of December 31, 2015 | | | 199,331 | | | 188,720 | | | 388,051 | |
Balance as of December 31, 2016 | | | 200,640 | | | 71,492 | | | 272,132 | |
Useful life | | | < 5 years | | | < 7 years | | | | |
(1) | Corresponds mainly to easements. |