XML 115 R101.htm IDEA: XBRL DOCUMENT v3.8.0.1
Other Financial Assets and Financial Liabilities - Summary of Interest-bearing Loans and Borrowings (Detail)
฿ in Thousands, ¥ in Thousands, $ in Thousands, $ in Thousands
 12 Months Ended
Dec. 31, 2017
USD ($)
Dec. 31, 2016
USD ($)
Dec. 31, 2017
THB (฿)
Dec. 31, 2017
CNY (¥)
Dec. 31, 2017
SGD ($)
Dec. 31, 2016
THB (฿)
Dec. 31, 2016
CNY (¥)
Dec. 31, 2016
SGD ($)
Disclosure of detailed information about borrowings [Line Items]                
Current interest-bearing loans and borrowings, Amount $ 41,151 $ 28,225            
United States of America, Dollars (USD) [Member]                
Disclosure of detailed information about borrowings [Line Items]                
Current interest-bearing loans and borrowings, Maturity Feb. 2018 Nov. 2017            
Current interest-bearing loans and borrowings, Amount $ 3,800 $ 6,500            
United States of America, Dollars (USD) [Member] | Bottom of range [Member]                
Disclosure of detailed information about borrowings [Line Items]                
Current interest-bearing loans and borrowings, Interest rate 3.20% 3.00% 3.20% 3.20% 3.20% 3.00% 3.00% 3.00%
United States of America, Dollars (USD) [Member] | Top of range [Member]                
Disclosure of detailed information about borrowings [Line Items]                
Current interest-bearing loans and borrowings, Interest rate 3.50% 3.50% 3.50% 3.50% 3.50% 3.50% 3.50% 3.50%
Renminbi (RMB) [Member]                
Disclosure of detailed information about borrowings [Line Items]                
Current interest-bearing loans and borrowings, Maturity Apr. 2018 ~ Sept. 2018 Feb. 2017 ~ Oct. 2017            
Current interest-bearing loans and borrowings, Amount $ 4,602 $ 4,323   ¥ 30,000     ¥ 30,200  
Renminbi (RMB) [Member] | Bottom of range [Member]                
Disclosure of detailed information about borrowings [Line Items]                
Current interest-bearing loans and borrowings, Interest rate 4.70% 4.70% 4.70% 4.70% 4.70% 4.70% 4.70% 4.70%
Renminbi (RMB) [Member] | Top of range [Member]                
Disclosure of detailed information about borrowings [Line Items]                
Current interest-bearing loans and borrowings, Interest rate 5.22% 4.79% 5.22% 5.22% 5.22% 4.79% 4.79% 4.79%
Thai Baht (THB) [Member]                
Disclosure of detailed information about borrowings [Line Items]                
Current interest-bearing loans and borrowings, Maturity Jan. 2018 ~ Jun. 2018 Jan. 2017 ~ Jun. 2017            
Current interest-bearing loans and borrowings, Amount $ 32,649 $ 15,043 ฿ 1,058,995     ฿ 536,095    
Thai Baht (THB) [Member] | Bottom of range [Member]                
Disclosure of detailed information about borrowings [Line Items]                
Current interest-bearing loans and borrowings, Interest rate 1.70% 1.10% 1.70% 1.70% 1.70% 1.10% 1.10% 1.10%
Thai Baht (THB) [Member] | Top of range [Member]                
Disclosure of detailed information about borrowings [Line Items]                
Current interest-bearing loans and borrowings, Interest rate 2.60% 2.10% 2.60% 2.60% 2.60% 2.10% 2.10% 2.10%
Singapore dollars (SGD) [Member]                
Disclosure of detailed information about borrowings [Line Items]                
Current interest-bearing loans and borrowings, Maturity Feb. 2018 Dec. 2017            
Current interest-bearing loans and borrowings, Amount $ 100 $ 2,359     $ 134     $ 3,412
Singapore dollars (SGD) [Member] | Bottom of range [Member]                
Disclosure of detailed information about borrowings [Line Items]                
Current interest-bearing loans and borrowings, Interest rate 2.47% 2.47% 2.47% 2.47% 2.47% 2.47% 2.47% 2.47%
Singapore dollars (SGD) [Member] | Top of range [Member]                
Disclosure of detailed information about borrowings [Line Items]                
Current interest-bearing loans and borrowings, Interest rate 2.54% 2.54% 2.54% 2.54% 2.54% 2.54% 2.54% 2.54%