| Report Element Information |
| Run date/time: 7/19/2011 2:38:35 PM |
| Report Element Attributes: |
| Prefix: | pattern |
| Standard label: | Reconciling Item Type A [Member] |
| Documentation: | Etiam feugiat massa nec nibh. Curabitur fermentum mattis eros. |
| Balance type: | |
| Period type: | For Period (duration) |
| Report element type: | [Member] |
| Data type: | [Member] (nonnum:domainItemType) |
| ID: | pattern_ReconcilingItemTypeAMember |
| Name: | pattern:ReconcilingItemTypeAMember |
| Labels of Report Element |
| Role: | Label | Lang |
| (http://www.xbrl.org/2003/role/documentation) | Etiam feugiat massa nec nibh. Curabitur fermentum mattis eros. | en |
| Standard label (http://www.xbrl.org/2003/role/label) | Reconciling Item Type A [Member] | en |