| Date Filed | Type | Description |
| 04/29/2021 |
10-K/A
| Annual Report for the period ended December 31, 2020 [amend] |
| 02/19/2021 |
10-K
| Annual Report for the period ended December 31, 2020 |
| 02/21/2020 |
10-K
| Annual Report for the period ended December 31, 2019 |
| 02/22/2019 |
10-K
| Annual Report for the period ended December 31, 2018 |
| 02/23/2018 |
10-K
| Annual Report for the period ended December 31, 2017 |
| 02/24/2017 |
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 |
| 02/28/2014 |
10-K
| Annual Report for the period ended December 31, 2013 |
| 02/27/2013 |
10-K
| Annual Report for the period ended December 31, 2012 |
| 02/28/2012 |
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 |
| 02/25/2010 |
10-K
| Annual Report for the period ended December 31, 2009 |
| 02/27/2009 |
10-K
| Annual Report for the period ended December 31, 2008 |
| 02/29/2008 |
10-K
| Annual Report for the period ended December 31, 2007 |
| 02/29/2008 |
AR
| 2007 Annual Report and Form 10-K |
| 03/01/2007 |
10-K
| Annual Report for the period ended December 31, 2006 |
| 03/01/2007 |
AR
| 2006 Annual Report |
| 03/01/2006 |
10-K
| Annual Report for the period ended December 31, 2005 |
| 03/01/2006 |
AR
| 2005 Annual Report |
| 03/14/2005 |
10-K
| Annual Report for the period ended December 31, 2004 |
| 03/14/2005 |
AR
| 2004 Annual Report |
| 03/12/2004 |
10-K
| Annual Report for the period ended December 31, 2003 |
| 03/12/2004 |
AR
| 2003 Annual Report |
| 03/26/2003 |
10-K
| Annual Report for the period ended December 31, 2002 |
| 03/26/2003 |
AR
| 2002 Annual Report |
| 03/18/2002 |
10-K/A
| Annual Report for the period ended December 31, 2001 [amend] |
| 03/12/2002 |
10-K
| Annual Report for the period ended December 31, 2001 |
| 03/12/2002 |
AR
| 2001 Annual Report |
| 03/19/2001 |
AR
| 2000 Annual Report |
| 03/19/2001 |
10-K
| Annual Report for the period ended December 31, 2000 |
| 03/23/2000 |
10-K
| Annual Report for the period ended December 31, 1999 |
| 03/23/2000 |
AR
| 1999 Annual Report |
| 03/19/1999 |
10-K
| Annual Report for the period ended December 31, 1998 |