XML 133 R126.htm IDEA: XBRL DOCUMENT
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Other Financial Liabilities - Additional Information (Detail) | 12 Months Ended |  |  |  |  |  |
--- | --- | --- | --- | --- | --- | --- | ---
Dec. 31, 2017 SGD ($) | Dec. 31, 2017 USD ($) | Dec. 20, 2017 | Mar. 31, 2017 USD ($) | Mar. 30, 2017 SGD ($) | Dec. 21, 2016 USD ($) | May 22, 2015 SGD ($)
DBS Bank Ltd [Member] |  |  |  |  |  |  |
Disclosure of detailed information about borrowings [Line Items] |  |  |  |  |  |  |
Credit facility maturity period | Three years |  |  |  |  |  |
DBS Bank Ltd [Member] | Top of range [Member] |  |  |  |  |  |  |
Disclosure of detailed information about borrowings [Line Items] |  |  |  |  |  |  |
Credit facility with bank |  |  |  |  |  |  | $ 30,000,000
Consolidated tangible net worth ratio | 100.00% | 100.00% |  |  |  |  |
DBS Bank Ltd [Member] | Bottom of range [Member] |  |  |  |  |  |  |
Disclosure of detailed information about borrowings [Line Items] |  |  |  |  |  |  |
Consolidated tangible net worth |  | $ 350,000,000 |  |  |  |  |
Credit facility with BOTM Singapore Branch [Member] |  |  |  |  |  |  |
Disclosure of detailed information about borrowings [Line Items] |  |  |  |  |  |  |
Credit facility maturity period | Three years |  |  |  |  |  |
Refinancing of unsecured multi-currency revolving credit facility |  |  |  |  | $ 30,000,000 |  |
Credit facility with BOTM Singapore Branch [Member] | Top of range [Member] |  |  |  |  |  |  |
Disclosure of detailed information about borrowings [Line Items] |  |  |  |  |  |  |
Consolidated tangible net worth ratio | 200.00% | 200.00% |  |  |  |  |
Facility limit | $ 30,000,000 |  |  |  |  |  |
Credit facility with BOTM Singapore Branch [Member] | Bottom of range [Member] |  |  |  |  |  |  |
Disclosure of detailed information about borrowings [Line Items] |  |  |  |  |  |  |
Consolidated tangible net worth |  | $ 120,000,000 |  |  |  |  |
Sumitomo branch [Member] |  |  |  |  |  |  |
Disclosure of detailed information about borrowings [Line Items] |  |  |  |  |  |  |
Credit facility maturity period | Three years |  |  |  |  |  |
Refinancing of unsecured multi-currency revolving credit facility |  |  |  | $ 30,000,000 |  |  |
Sumitomo branch [Member] | Top of range [Member] |  |  |  |  |  |  |
Disclosure of detailed information about borrowings [Line Items] |  |  |  |  |  |  |
Consolidated tangible net worth ratio | 200.00% | 200.00% |  |  |  |  |
Facility limit |  | $ 30,000,000 |  |  |  |  |
Sumitomo branch [Member] | Bottom of range [Member] |  |  |  |  |  |  |
Disclosure of detailed information about borrowings [Line Items] |  |  |  |  |  |  |
Consolidated tangible net worth |  | $ 200,000,000 |  |  |  |  |
Forward contract [Member] |  |  |  |  |  |  |
Disclosure of detailed information about borrowings [Line Items] |  |  |  |  |  |  |
Non-deliverable forward foreign exchange contract |  |  |  |  |  | $ 15,300,000 |
Exchange rate |  |  | 7.0439 |  |  |  |

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