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Intangible Assets (Tables) | 9 Months Ended
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Sep. 30, 2019
Intangible Assets |
Summary of intangible assets | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | September 30, 2019
​ | ​ | Estimated | ​ | Gross | ​ | ​ | ​ | ​ | Net
​ | ​ | Average Useful | ​ | Carrying | ​ | Accumulated | ​ | Carrying
​ | ​ | Life (in years) | ​ | Amount | ​ | Amortization | ​ | Amount
University partner relationships |  | 25 |  | $ | 210,000 |  | ​ | (5,838) |  | $ | 204,162
Trade names | ​ | 1 | ​ | ​ | 280 | ​ | ​ | (206) | ​ |  | 74
Total amortizable intangible assets, net | ​ | ​ | ​ | $ | 210,280 | ​ | ​ | (6,044) | ​ | $ | 204,236
Schedule of amortization expense for developed curricula and student relationships | Amortization expense for university partner relationships and trade names for the years ending December 31:
​ | ​ | ​ | ​
2019 | ​ | $ | 2,179
2020 | ​ |  | 8,419
2021 | ​ | ​ | 8,419
2022 | ​ | ​ | 8,419
2023 | ​ | ​ | 8,419
Thereafter | ​ |  | 168,381
​ | ​ | $ | 204,236

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