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Regulatory Authorizations - Future Amortization of Intangible Assets (Details)
$ in Thousands
Dec. 31, 2019
USD ($)
Estimated future amortization of intangible assets  
2020 $ 4,467
2021 4,458
2022 4,458
2023 4,458
2024 4,467
Thereafter 15,999
Total $ 38,307