| Report Element Information |
| Run date/time: 7/16/2011 9:23:30 AM |
| Report Element Attributes: |
| Prefix: | pattern |
| Standard label: | Income Tax Expense (Benefit), by Component [Table] |
| Documentation: | Ut venenatis, velit a accumsan interdum, odio metus mollis mauris, non pharetra augue arcu eu felis. |
| Balance type: | |
| Period type: | |
| Report element type: | [Table] |
| Data type: | |
| ID: | pattern_IncomeTaxExpenseBenefitByComponentTable |
| Name: | pattern:IncomeTaxExpenseBenefitByComponentTable |
| Labels of Report Element |
| Role: | Label | Lang |
| (http://www.xbrl.org/2003/role/documentation) | Ut venenatis, velit a accumsan interdum, odio metus mollis mauris, non pharetra augue arcu eu felis. | en |
| Standard label (http://www.xbrl.org/2003/role/label) | Income Tax Expense (Benefit), by Component [Table] | en |