Summary of significant accounting policies - Goodwill (Details) $ in Thousands |
2 Months Ended | 10 Months Ended | 12 Months Ended | 34 Months Ended | |||
|---|---|---|---|---|---|---|---|
|
Dec. 31, 2020
USD ($)
item
|
Oct. 30, 2020
USD ($)
|
Dec. 31, 2020
USD ($)
|
Dec. 31, 2019
USD ($)
|
Oct. 30, 2020
item
|
Oct. 31, 2020
USD ($)
|
Dec. 31, 2018
USD ($)
|
|
| Goodwill | |||||||
| Number of reporting unit | item | 5 | 1 | |||||
| Impairment loss | $ 0 | $ 0 | $ 0 | $ 0 | |||
| Goodwill | $ 58,579 | $ 58,579 | $ 58,579 | $ 58,579 | $ 59,640 | ||
| Carrier services | |||||||
| Goodwill | |||||||
| Goodwill | 37,740 | ||||||
| Military | |||||||
| Goodwill | |||||||
| Goodwill | 15,151 | ||||||
| Mulitifamily | |||||||
| Goodwill | |||||||
| Goodwill | 3,062 | ||||||
| Legacy | |||||||
| Goodwill | |||||||
| Goodwill | 1,829 | ||||||
| Private networks and emerging technologies | |||||||
| Goodwill | |||||||
| Goodwill | $ 797 | ||||||