(17) | Other non-current assets |
| | December 31, | | |||||||
| | 2017 | | 2016 | | 2015 | | |||
Advances for purchase of property, plant and equipment | | $ | 331,691 | | | 552,417 | | | 277,277 | |
Investments in life insurance (note 3 (l)) | | | 64,629 | | | 65,509 | | | 52,572 | |
Security deposits | | | 16,796 | | | 15,132 | | | 13,574 | |
Other long-term receivable | | | 162,337 | | | 161,690 | | | 128,169 | |
Intangible assets in process | | | 11,506 | | | 12,200 | | | 73,125 | |
Other | | | 56,047 | | | 58,506 | | | 49,189 | |
Total non-current assets | | $ | 643,006 | | | 865,454 | | | 593,906 | |