| Schedule of components of regulatory authorizations |
The following table presents the components of our Regulatory authorizations, net: | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Finite lived | | | | | | | Cost | | Accumulated Amortization | | Total | | Indefinite lived | | Total | | Balance, December 31, 2018 | | $ | 46,787 | | | $ | (16,790) | | | $ | 29,997 | | | $ | 400,042 | | | $ | 430,039 | | | | | | | | | | | | | | Disposals | | — | | | — | | | — | | | (43) | | | (43) | | | Amortization expense | | — | | | (2,635) | | | (2,635) | | | — | | | (2,635) | | | Foreign currency translation | | (1,986) | | | 814 | | | (1,172) | | | — | | | (1,172) | | | Balance, September 30, 2019 | | $ | 44,801 | | | $ | (18,611) | | | $ | 26,190 | | | $ | 399,999 | | | $ | 426,189 | | | | | | | | | | | | | | Balance, December 31, 2019 | | $ | 58,451 | | | $ | (20,144) | | | $ | 38,307 | | | $ | 440,291 | | | $ | 478,598 | | | | | | | | | | | | | | | | | | | | | | | | | Amortization expense | | — | | | (3,181) | | | (3,181) | | | — | | | (3,181) | | | Foreign currency translation | | 607 | | | (929) | | | (322) | | | 729 | | | 407 | | | Balance, September 30, 2020 | | $ | 59,058 | | | $ | (24,254) | | | $ | 34,804 | | | $ | 441,020 | | | $ | 475,824 | | | | | | | | | | | | | | Weighted average useful life (in years) | | 13 | | | | | | |
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