| Date | Form | Description | XBRL | Pages |
|---|---|---|---|---|
| 04/02/13 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 1 | |
| 03/28/13 | DEFA14A | Form DEFA14A: Additional definitive proxy soliciting materials and Rule 14(a)(12) material | 3 | |
| 03/28/13 | DEF 14A | Form DEF 14A: Definitive proxy statements | 77 | |
| 03/22/13 | S-3 | Form S-3: Registration statement for specified transactions by certain issuers | 12 | |
| 03/19/13 | CT ORDER | Form CT ORDER: Confidential treatment order | 1 | |
| 03/06/13 | S-3 | Form S-3: Registration statement for specified transactions by certain issuers | 12 | |
| 03/06/13 | POS AM | Form POS AM: Post-effective amendment to a registration statement that is not immediately effective upon filing | 26 | |
| 03/01/13 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 1 | |
| 03/01/13 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 1 | |
| 02/28/13 | 8-K | Form 8-K: Current report filing | 5 |