Report Element Information
Run date/time: 6/5/2011 7:34:40 AM
Report Element Attributes:
Report element from taxonomy prefix: us-gaap
US GAAP taxonomy standard label: us-gaap: Common Class B [Member]
Filer taxonomy standard label: Common Class B [Member]
Documentation: A classification of common stock that has different rights than Common Class A.
Balance type:  
Period type: For Period (duration)
Report element type: [Member]
Data type: [Member] (nonnum:domainItemType)
ID: us-gaap_CommonClassBMember
Name: us-gaap:CommonClassBMember

Labels of Report Element: (Labels from filer taxonomy, does not include other labels)
Role: Label Lang
Standard label ( Common Class B [Member] en-US

References of Report Element, FASB Accounting Standards Codification:
Publisher, Name: Topic Sub Topic Glossary URI

References of Report Element, SEC Regulation S-X (SX):
Publisher, Name: Number Section Paragraph Subparagraph Article

References of Report Element, US GAAP Legacy:
Publisher: Name Number Chapter Section Paragraph Subparagraph Article Clause Appendix