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Principal Activities and Corporate Information - Additional Information (Detail) - USD ($) |  |  |  | 10 Months Ended | 12 Months Ended |  |  |  |
--- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Aug. 17, 2015 | Aug. 13, 2014 | Aug. 28, 2012 | Jun. 30, 2013 | Dec. 31, 2009 | Dec. 31, 2007 | Dec. 31, 2018 | Dec. 31, 2017 | Sep. 08, 2008 | Sep. 07, 2008
Disclosure corporate information [Line Items] |  |  |  |  |  |  |  |  |  |
Percentage of shares owned by a U.S. private equity firm |  |  |  |  | 9.80% | 20.00% |  |  |  |
Percentage of remaining shares sold by a U.S. private equity firm to Pacific Electric Wire & Cable Co., Ltd. | 9.80% |  |  |  |  |  |  |  |  |
Authorized share capital, number of shares |  |  |  |  |  |  | 50,000,000 | 50,000,000 | 50,000,000 | 20,000,000
Authorized share capital, par value per share |  |  |  |  |  |  | $ 0.01 | $ 0.01 | $ 0.01 | $ 0.01
Number of shares repurchased under share capital repurchase program |  |  |  | (11,100) |  |  |  |  |  |
Total consideration for shares repurchased under share capital repurchase program |  |  |  | $ 38,000 |  |  |  |  |  |
Financial liabilities recognized |  | $ 0 |  |  |  |  | $ 49,170,000 | $ 77,560,000 |  |
Top of range [Member] |  |  |  |  |  |  |  |  |  |
Disclosure corporate information [Line Items] |  |  |  |  |  |  |  |  |  |
Monetary amount of common shares authorized to repurchase under share capital repurchase program |  |  | $ 2,000,000 |  |  |  |  |  |  |
Monetary amount of common shares authorized to repurchase under share capital repurchase program |  | $ 1,000,000 |  |  |  |  |  |  |  |
Pacific Electric Wire & Cable Co., Ltd. [Member] |  |  |  |  |  |  |  |  |  |
Disclosure corporate information [Line Items] |  |  |  |  |  |  |  |  |  |
Percentage of equity interest held by the ultimate parent company |  |  |  |  |  |  | 75.40% |  |  |

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