| Report Element Information |
| Run date/time: 7/16/2011 9:02:48 AM |
| Report Element Attributes: |
| Prefix: | pattern |
| Standard label: | Basis of Presentation [Text Block] |
| Documentation: | Duis fermentum. Nullam dui orci, scelerisque porttitor, volutpat a, porttitor a, enim. Sed lobortis. |
| Balance type: | |
| Period type: | For Period (duration) |
| Report element type: | [Concept] |
| Data type: | Text Block (HTML) (nonnum:textBlockItemType) |
| ID: | pattern_BasisOfPresentationTextBlock |
| Name: | pattern:BasisOfPresentationTextBlock |
| Labels of Report Element |
| Role: | Label | Lang |
| (http://www.xbrl.org/2003/role/documentation) | Duis fermentum. Nullam dui orci, scelerisque porttitor, volutpat a, porttitor a, enim. Sed lobortis. | en |
| Standard label (http://www.xbrl.org/2003/role/label) | Basis of Presentation [Text Block] | en |