| | For the year ended December 31, 2017 | | ||||||||||
| | Balance, Beginning of Year | | Additions | | Effect of change in exchange rate | | Balance, End of Year | | ||||
| | (in thousands) | | ||||||||||
Cost: | | | | | | | | | | | | | |
Patent and technology fee | | $ | 12,078,767 | | | 196,781 | | | - | | | 12,275,548 | |
Accumulated amortization: | | | | | | | | | | | | | |
Patent and technology fee | | | 9,756,528 | | | 628,606 | | | 117 | | | 10,385,251 | |
Net carrying amounts | | $ | 2,322,239 | | | | | | | | | 1,890,297 | |
| | For the year ended December 31, 2016 | | ||||||||||
| | Balance, Beginning of Year | | Additions | | Reclassification and effect of change in exchange rate | | Balance, End of Year | | ||||
| | (in thousands) | | ||||||||||
Cost: | | | | | | | | | | | | | |
Patent and technology fee | | $ | 11,901,662 | | | 187,020 | | | (9,915) | | | 12,078,767 | |
Accumulated amortization: | | | | | | | | | | | | | |
Patent and technology fee | | | 8,606,978 | | | 1,159,465 | | | (9,915) | | | 9,756,528 | |
Net carrying amounts | | $ | 3,294,684 | | | | | | | | | 2,322,239 | |