Details for Selection
| Standard label: | Schedules of Concentration of Risk, by Risk Factor [Table Text Block] |
| Name: | us-gaap:SchedulesOfConcentrationOfRiskByRiskFactorTextBlock |
| Documentation: | Tabular disclosure of the nature of a concentration, a benchmark to which it is compared, and the percentage that the risk is to the benchmark. |
| Commentary: | |
| Data type: | Text Block (HTML) (nonnum:textBlockItemType) |
| Period type: | For period (duration) |
| Balance type: | |
| Object class: | [Text Block] |