| Date Filed | Type | Description |
| 02/24/2022 |
10-K
| Annual Report for the period ended December 31, 2021 |
| 02/25/2021 |
10-K
| Annual Report for the period ended December 31, 2020 |
| 02/25/2020 |
10-K
| Annual Report for the period ended December 31, 2019 |
| 02/28/2019 |
10-K
| Annual Report for the period ended December 31, 2018 |
| 02/28/2018 |
10-K
| Annual Report for the period ended December 31, 2017 |
| 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 |
| 02/27/2015 |
10-K
| Annual Report for the period ended December 31, 2014 |
| 02/27/2014 |
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 |
| 04/13/2012 |
10-K/A
| Annual Report for the period ended December 31, 2011 [amend] |
| 02/29/2012 |
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 |
| 03/26/2010 |
10-K
| Annual Report for the period ended December 31, 2009 |
| 08/14/2009 |
10-K/A
| Annual Report for the period ended December 31, 2008 [amend] |
| 04/14/2009 |
10-K
| Annual Report for the period ended December 31, 2008 |
| 02/19/2008 |
10-K
| Annual Report for the period ended December 31, 2007 |
| 04/24/2007 |
10-K/A
| Annual Report for the period ended December 31, 2006 [amend] |
| 03/22/2007 |
10-K/A
| Annual Report for the period ended December 31, 2006 [amend] |
| 03/12/2007 |
10-K
| Annual Report for the period ended December 31, 2006 |
| 02/27/2006 |
10-K
| Annual Report for the period ended December 31, 2005 |
| 03/03/2005 |
10-K
| Annual Report for the period ended December 31, 2004 |
| 04/05/2004 |
10-K/A
| Annual Report for the period ended December 31, 2003 [amend] |
| 03/26/2004 |
10-K/A
| Annual Report for the period ended December 31, 2003 [amend] |
| 03/23/2004 |
10-K/A
| Annual Report for the period ended December 31, 2003 [amend] |
| 02/12/2004 |
10-K
| Annual Report for the period ended December 31, 2003 |
| 04/15/2003 |
10-K
| Annual Report for the period ended December 31, 2002 |
| 04/18/2002 |
10-K/A
| Annual Report for the period ended December 31, 2001 [amend] |
| 04/15/2002 |
10-K
| Annual Report for the period ended December 31, 2001 |
| 03/29/2001 |
10-K
| Annual Report for the period ended December 31, 2000 |
| 03/29/2000 |
10-K
| Annual Report for the period ended December 31, 1999 |
| 03/31/1999 |
10-K
| Annual Report for the period ended December 31, 1998 |
| 02/04/1998 |
10-K
| Annual Report for the period ended December 31, 1997 |
| 02/10/1997 |
10-K
| Annual Report for the period ended December 31, 1996 |