| Date | Form | Description | XBRL | |
|---|---|---|---|---|
| 03/20/12 | PRE 14A | Preliminary proxy statement not related to a contested matter or merger/acquisition |
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| 03/15/12 | 8-K | Current report filing |
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| 03/14/12 | 424B2 | Prospectus filed pursuant to Rule 424(b)(2) |
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| 03/12/12 | FWP | Filing under Securities Act Rules 163/433 of free writing prospectuses |
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| 03/12/12 | 424B5 | Prospectus filed pursuant to Rule 424(b)(5) |
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| 03/12/12 | 4 | Statement of changes in beneficial ownership of securities |
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| 03/07/12 | 8-K | Current report filing |
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| 03/05/12 | 4 | Statement of changes in beneficial ownership of securities |
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| 03/05/12 | 4 | Statement of changes in beneficial ownership of securities |
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| 03/05/12 | 4 | Statement of changes in beneficial ownership of securities |
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