| Date | Form | Description | XBRL | Pages | |
|---|---|---|---|---|---|
| 03/05/12 | SC 13G | Schedule filed to report acquisition of beneficial ownership of 5% or more of a class of equity securities by passive investors and certain institutions |
|
12 | |
| 02/28/12 | 10-K | Annual report pursuant to Section 13 and 15(d) |
|
   |
210 |
| 02/24/12 | 8-K | Current report filing |
|
45 | |
| 02/23/12 | 424B5 | Prospectus filed pursuant to Rule 424(b)(5) |
|
77 | |
| 02/21/12 | 8-K | Current report filing |
|
17 | |
| 02/21/12 | 424B5 | Prospectus filed pursuant to Rule 424(b)(5) |
|
77 | |
| 02/16/12 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 02/15/12 | 4/A | Statement of changes in beneficial ownership of securities |
|
2 | |
| 02/15/12 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 02/15/12 | 4 | Statement of changes in beneficial ownership of securities |
|
2 |
