| Date | Form | Description | XBRL | Pages | |
|---|---|---|---|---|---|
| 04/15/13 | 8-K | Current report filing |
|
2 | |
| 04/11/13 | 8-K | Current report filing |
|
3 | |
| 03/19/13 | ARS | Annual report to security holders |
|
88 | |
| 03/18/13 | DEF 14A | Definitive proxy statements |
|
48 | |
| 02/27/13 | 10-K | Annual report pursuant to Section 13 and 15(d) |
|
   |
83 |
| 02/25/13 | 8-K | Current report filing |
|
2 | |
| 02/14/13 | SC 13G/A | Schedule filed to report acquisition of beneficial ownership of 5% or more of a class of equity securities by passive investors and certain institutions |
|
6 | |
| 02/12/13 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 01/30/13 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 01/30/13 | 4 | Statement of changes in beneficial ownership of securities |
|
2 |