Rendering

Component: (Network and Table)
Network
BC: Statement: Balance Sheet, Classes of Common Stock
(http://xasb.org/gaap/role/schedule/level4/ClassesOfCommonStockSchedule)
TableCommon Stock, by Class [Table]
Slicers (applies to each fact value in each table cell)
Common Stock, by Class [Line Items]Period [Axis]
2010-12-31
2009-12-31
2008-12-31
Class of Common Stock, Description [Axis]Class of Common Stock, Description [Axis]Class of Common Stock, Description [Axis]
Class A Common Stock [Member]Class B Common Stock [Member]All Classes of Common Stock [Member]Class A Common Stock [Member]Class B Common Stock [Member]All Classes of Common Stock [Member]Class A Common Stock [Member]Class B Common Stock [Member]All Classes of Common Stock [Member]