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Subsequent Event - Additional Information (Detail) ฿ / shares in Units, $ / shares in Units, $ in Thousands, ฿ in Millions |  |  | 3 Months Ended |
--- | --- | --- | --- | ---
Feb. 02, 2022 USD ($) $ / shares shares | Mar. 12, 2021 USD ($) | Mar. 12, 2021 THB (฿) ฿ / shares | Mar. 31, 2022 USD ($) | Dec. 31, 2021 USD ($)
Disclosure Of Nonadjusting Events After Reporting Period [Line Items] |  |  |  |  |
Copper price per ton |  |  |  |  | $ 9,692
Subsequent Event [Member] |  |  |  |  |
Disclosure Of Nonadjusting Events After Reporting Period [Line Items] |  |  |  |  |
Copper price per ton |  |  |  | $ 10,337 |
Unrealized loss |  |  |  | $ 800 |
Rights Offering [Member] |  |  |  |  |
Disclosure Of Nonadjusting Events After Reporting Period [Line Items] |  |  |  |  |
Number of shares issued | shares | 6,796,558 |  |  |  |
Rights offering price per share | $ / shares | $ 1.22 |  |  |  |
Gross proceeds on exercise of subscription rights before expenses | $ 8,300 |  |  |  |
Charoong Thai Wire and Cable Public Company Limited [Member] | Major ordinary share transactions [Member] |  |  |  |  |
Disclosure Of Nonadjusting Events After Reporting Period [Line Items] |  |  |  |  |
Dividend payments declared to its shareholders |  | $ 1,200 | ฿ 39.8 |  |
Dividend payments declared to its shareholders, per share | ฿ / shares |  |  | ฿ 0.10 |  |
Dividend payment date |  | May 20, 2022 | May 20, 2022 |  |
Dividends paid to non-controlling interests |  | $ 600 |  |  |

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