| Report Element Information |
| Run date/time: 7/18/2011 12:26:40 PM |
| Report Element Attributes: |
| Prefix: | pattern |
| Standard label: | Financial Highlights [Line Items] |
| Documentation: | Fusce vitae mi. Sed dapibus venenatis ipsum. Sed in purus. |
| Balance type: | |
| Period type: | For Period (duration) |
| Report element type: | [Line Items] |
| Data type: | Text/String (xbrli:stringItemType) |
| ID: | pattern_FinancialHighlightsLineItems |
| Name: | pattern:FinancialHighlightsLineItems |
| Labels of Report Element |
| Role: | Label | Lang |
| (http://www.xbrl.org/2003/role/documentation) | Fusce vitae mi. Sed dapibus venenatis ipsum. Sed in purus. | en |
| Standard label (http://www.xbrl.org/2003/role/label) | Financial Highlights [Line Items] | en |