Details for Selection
| Standard label: | Marketable Securities [Text Block] |
| Name: | us-gaap:MarketableSecuritiesTextBlock |
| Documentation: | Tabular disclosure of marketable securities. This may consist of investments in certain debt and equity securities, short-term investments and other assets. |
| Commentary: | |
| Data type: | Text Block (HTML) (nonnum:textBlockItemType) |
| Period type: | For period (duration) |
| Balance type: | |
| Object class: | [Text Block] |