| Report Element Information |
| Run date/time: 7/16/2011 11:49:41 AM |
| Report Element Attributes: |
| Prefix: | pattern |
| Standard label: | Income Tax Expense (Benefit) |
| Documentation: | Proin non mauris. Proin sed odio. Phasellus sagittis orci quis orci. Aliquam erat volutpat. |
| Balance type: | Debit |
| Period type: | For Period (duration) |
| Report element type: | [Concept] |
| Data type: | Monetary (xbrli:monetaryItemType) |
| ID: | pattern_IncomeTaxExpenseBenefit |
| Name: | pattern:IncomeTaxExpenseBenefit |
| Labels of Report Element |
| Role: | Label | Lang |
| (http://www.xbrl.org/2003/role/documentation) | Proin non mauris. Proin sed odio. Phasellus sagittis orci quis orci. Aliquam erat volutpat. | en |
| Standard label (http://www.xbrl.org/2003/role/label) | Income Tax Expense (Benefit) | en |