| Date | Form | Description | XBRL | Pages |
|---|---|---|---|---|
| 02/14/13 | SC 13G/A | Form SC 13G/A: Statement of Beneficial Ownership by Certain Investors | 5 | |
| 02/13/13 | SC 13G/A | Form SC 13G/A: Statement of Beneficial Ownership by Certain Investors | 3 | |
| 02/12/13 | SC 13G | Form SC 13G: Statement of Beneficial Ownership by Certain Investors | 5 | |
| 02/12/13 | SC 13G | Form SC 13G: Statement of Beneficial Ownership by Certain Investors | 5 | |
| 01/30/13 | SC 13G | Form SC 13G: Statement of Beneficial Ownership by Certain Investors | 5 | |
| 01/22/13 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 2 | |
| 01/17/13 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 1 | |
| 01/17/13 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 1 | |
| 01/09/13 | 10-Q | Form 10-Q: Quarterly report [Sections 13 or 15(d)] |
|
49 |
| 01/08/13 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 1 |
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