- DefinitionTabular disclosure of marketable securities. This may consist of investments in certain debt and equity securities, short-term investments and other assets.
| Name: |
us-gaap_MarketableSecuritiesTextBlock |
| Namespace Prefix: |
us-gaap_ |
| Data Type: |
nonnum:textBlockItemType |
| Balance Type: |
na |
| Period Type: |
duration |