| SEGMENT INFORMATION - Additional Information (Detail) | Dec. 31, 2011
 Segment | 
|---|---|
| Segment Reporting Disclosure [Line Items] | |
| Number of reportable segments | 5 | 
| X | ||||||||||
| 
- Definition Number of Operating Segments No definition available. 
 | 
| X | ||||||||||
| 
- Details 
 |