| Date Filed | Type | Description |
| 02/28/2022 |
10-K
| Annual Report for the period ended December 31, 2021 |
| 02/26/2021 |
10-K
| Annual Report for the period ended December 31, 2020 |
| 04/10/2020 |
10-K/A
| Annual Report for the period ended December 31, 2019 [amend] |
| 02/27/2020 |
10-K
| Annual Report for the period ended December 31, 2019 |
| 04/15/2019 |
10-K/A
| Annual Report for the period ended December 31, 2018 [amend] |
| 02/27/2019 |
10-K
| Annual Report for the period ended December 31, 2018 |
| 04/03/2018 |
10-K/A
| Annual Report for the period ended December 31, 2017 [amend] |
| 02/28/2018 |
10-K
| Annual Report for the period ended December 31, 2017 |
| 04/03/2017 |
10-K/A
| Annual Report for the period ended December 31, 2016 [amend] |
| 02/27/2017 |
10-K
| Annual Report for the period ended December 31, 2016 |
| 02/26/2016 |
10-K
| Annual Report for the period ended December 31, 2015 |
| 03/02/2015 |
10-K
| Annual Report for the period ended December 31, 2014 |
| 03/03/2014 |
10-K
| Annual Report for the period ended December 31, 2013 |
| 02/28/2013 |
10-K
| Annual Report for the period ended December 31, 2012 |
| 02/27/2012 |
10-K
| Annual Report for the period ended December 31, 2011 |
| 02/25/2011 |
10-K
| Annual Report for the period ended December 31, 2010 |
| 02/26/2010 |
10-K
| Annual Report for the period ended December 31, 2009 |
| 03/02/2009 |
10-K
| Annual Report for the period ended December 31, 2008 |
| 02/28/2008 |
10-K
| Annual Report for the period ended December 31, 2007 |
| 02/28/2008 |
AR
| 2007 Annual Report (PDF) |
| 02/28/2007 |
10-K
| Annual Report for the period ended December 31, 2006 |
| 02/28/2007 |
AR
| 2006 Annual Report |
| 02/27/2006 |
10-K
| Annual Report for the period ended December 31, 2005 |
| 03/01/2005 |
10-K
| Annual Report for the period ended December 31, 2004 |
| 03/01/2005 |
AR
| 2004 Annual Report |