| Report Element Information |
| Run date/time: 7/16/2011 9:23:30 AM |
| Report Element Attributes: |
| Prefix: | pattern |
| Standard label: | Income Tax Expense (Benefit) [Roll Up] |
| Documentation: | Fusce venenatis. Maecenas tincidunt, ipsum in fringilla hendrerit, dolor metus eleifend neque, vel tincidunt mi nunc a purus. |
| Balance type: | |
| Period type: | For Period (duration) |
| Report element type: | [Concept (Abstract)] |
| Data type: | Text/String (xbrli:stringItemType) |
| ID: | pattern_IncomeTaxExpenseBenefitRollUp |
| Name: | pattern:IncomeTaxExpenseBenefitRollUp |
| Labels of Report Element |
| Role: | Label | Lang |
| (http://www.xbrl.org/2003/role/documentation) | Fusce venenatis. Maecenas tincidunt, ipsum in fringilla hendrerit, dolor metus eleifend neque, vel tincidunt mi nunc a purus. | en |
| Standard label (http://www.xbrl.org/2003/role/label) | Income Tax Expense (Benefit) [Roll Up] | en |