| Report Element Information |
| Run date/time: 7/21/2011 9:02:17 AM |
| Report Element Attributes: |
| Prefix: | pattern |
| Standard label: | Leaseholds, All [Member] |
| Documentation: | None provided |
| Balance type: | |
| Period type: | For Period (duration) |
| Report element type: | [Member] |
| Data type: | [Member] (nonnum:domainItemType) |
| ID: | pattern_LeaseholdsAllMember |
| Name: | pattern:LeaseholdsAllMember |
| 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) | Leaseholds, All [Member] | en |