| Date Filed | Type | Description |
| 04/29/2022 |
10-K/A
| Annual Report for the period ended December 31, 2021 [amend] |
| 02/23/2022 |
10-K
| Annual Report for the period ended December 31, 2021 |
| 02/23/2021 |
10-K
| Annual Report for the period ended December 31, 2020 |
| 02/19/2020 |
10-K
| Annual Report for the period ended December 31, 2019 |
| 02/20/2019 |
10-K
| Annual Report for the period ended December 31, 2018 |
| 02/21/2018 |
10-K
| Annual Report for the period ended December 31, 2017 |
| 02/22/2017 |
10-K
| Annual Report for the period ended December 31, 2016 |
| 02/23/2016 |
10-K
| Annual Report for the period ended December 31, 2015 |
| 02/24/2015 |
10-K
| Annual Report for the period ended December 31, 2014 |
| 02/25/2014 |
10-K
| Annual Report for the period ended December 31, 2013 |
| 02/21/2013 |
10-K
| Annual Report for the period ended December 31, 2012 |
| 02/24/2012 |
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 |
| 03/11/2009 |
10-K/A
| Annual Report for the period ended December 31, 2008 [amend] |
| 02/27/2009 |
10-K
| Annual Report for the period ended December 31, 2008 |
| 02/27/2008 |
10-K
| Annual Report for the period ended December 31, 2007 |
| 02/28/2007 |
10-K
| Annual Report for the period ended December 31, 2006 |
| 03/03/2006 |
10-K
| Annual Report for the period ended December 31, 2005 |
| 03/08/2005 |
10-K
| Annual Report for the period ended December 31, 2004 |
| 02/26/2004 |
10-K
| Annual Report for the period ended December 31, 2003 |
| 03/20/2003 |
10-K
| Annual Report for the period ended December 31, 2002 |
| 03/21/2002 |
10-K
| Annual Report for the period ended December 31, 2001 |
| 03/20/2001 |
10-K
| Annual Report for the period ended December 31, 2000 |
| 03/22/2000 |
10-K
| Annual Report for the period ended December 31, 1999 |
| 03/18/1999 |
10-K
| Annual Report for the period ended December 31, 1998 |
| 03/19/1998 |
10-K
| Annual Report for the period ended December 31, 1997 |
| 03/21/1997 |
10-K
| Annual Report for the period ended December 31, 1996 |
| 03/22/1996 |
10-K
| Annual Report for the period ended December 31, 1995 |
| 03/17/1995 |
10-K
| Annual Report for the period ended December 31, 1994 |
| 03/29/1994 |
10-K
| Annual Report for the period ended December 31, 1993 |