|
Summary of Significant Accounting Policies - Share Split (Details) (Parent Company [Member])
|
12 Months Ended |
|---|---|
|
Dec. 31, 2011
|
|
|
Parent Company [Member]
|
|
| Entity Information [Line Items] | |
| Stockholders' Equity Note, Stock Split, Conversion Ratio | 2 |
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
This item represents the conversion ratio used in the calculation of a stock split. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|