v3.21.2

Discontinued Operations (Additional Information) (Details) $ in Thousands, $ in Thousands |  |  |  |  |  | 3 Months Ended | 12 Months Ended |  |  |  |
--- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Aug. 31, 2020 HKD ($) shares | Sep. 20, 2019 HKD ($) shares | Apr. 30, 2019 USD ($) | Apr. 25, 2019 USD ($) shares | Jun. 07, 2018 HKD ($) | Dec. 31, 2018 | Dec. 31, 2019 USD ($) | Aug. 31, 2020 USD ($) | Sep. 20, 2019 USD ($) | Apr. 25, 2019 HKD ($) | Apr. 25, 2019 USD ($) | Jun. 07, 2018 USD ($)
Century Skyway Limited |  |  |  |  |  |  |  |  |  |  |  |
Percentage of ownership used to pay to acquiree in business combination |  |  |  |  | 49.00% |  |  |  |  |  |  |
Consideration |  |  |  |  | $ 126,130 |  | $ 12,750 |  |  | $ 99,450 | $ 12,750 | $ 16,170
Percentage of ownership to sell in disposal |  |  |  |  |  | 51.00% | 51.00% |  |  |  |  |
Number of shares to sell |  |  |  | 5,100 |  |  |  |  |  |  |  |
Boca International Limited |  |  |  |  |  |  |  |  |  |  |  |
Percentage of ownership used to pay to acquiree in business combination |  |  |  |  | 49.00% |  |  |  |  |  |  |
Consideration | $ 1,460 |  |  |  | $ 184,840 |  |  | $ 190 |  |  |  | $ 23,700
Percentage of ownership to sell in disposal | 51.00% |  |  |  |  |  |  |  |  |  |  |
Number of shares to sell | 94 |  |  |  |  |  |  |  |  |  |  |
Two Thousand Eighteen Notes Member [Member] | Century Skyway Limited |  |  |  |  |  |  |  |  |  |  |  |
Principal amount to be surrendered in the disposal | $ |  |  | $ 3,760 | $ 3,760 |  |  |  |  |  |  |  |
Ho Pui Lung [Member] | Century Skyway Limited |  |  |  |  |  |  |  |  |  |  |  |
Consideration |  | $ 99,450 |  |  |  |  |  |  | $ 12,750 |  |  |
Percentage of ownership to sell in disposal |  | 51.00% |  |  |  |  |  |  |  |  |  |
Number of shares to sell |  | 5,100 |  |  |  |  |  |  |  |  |  |
Wong Yiu Tong [Member] | Boca International Limited |  |  |  |  |  |  |  |  |  |  |  |
Consideration | $ 1,460 |  |  |  |  |  |  | $ 190 |  |  |  |
Percentage of ownership to sell in disposal | 51.00% |  |  |  |  |  |  |  |  |  |  |

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