If you are planning to rely on system Data for XBRL reporting...I would say ..test..test ...test....if you are planning to do it first time..
Early next month Finance Controller and Auditors will be quite busy in arranging XBRL reporting ,specially if they are from Singapore based registrated company.
Here is link for details for "Preparing and Filing of Financial Statements (XBRL) for ACRA  " the local Govt body.
Oracle E Business and Taxomony
The good is that ACRA have already made a Oracle qualified vendor for XBRL reporting, though there are very few reports which is compatible with ACRA taxonomy as reported.
Here are list of the some of Features that makes part of compatibility of ACRA.
- XBRL & Reporting