| Date Filed | Type | Description |
| 05/02/2022 |
10-K/A
| Annual Report for the period ended December 31, 2021 [amend] |
| 03/07/2022 |
10-K
| Annual Report for the period ended December 31, 2021 |
| 04/30/2021 |
10-K/A
| Annual Report for the period ended December 31, 2020 [amend] |
| 02/10/2021 |
10-K
| Annual Report for the period ended December 31, 2020 |
| 02/14/2020 |
10-K/A
| Annual Report for the period ended December 31, 2019 [amend] |
| 02/11/2020 |
10-K
| Annual Report for the period ended December 31, 2019 |
| 02/13/2019 |
10-K
| Annual Report for the period ended December 31, 2018 |
| 02/13/2018 |
10-K
| Annual Report for the period ended December 31, 2017 |
| 02/16/2017 |
10-K
| Annual Report for the period ended December 31, 2016 |
| 02/19/2016 |
10-K
| Annual Report for the period ended December 31, 2015 |
| 02/23/2015 |
10-K
| Annual Report for the period ended December 31, 2014 |
| 02/24/2014 |
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 |
| 02/23/2012 |
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 |
| 02/23/2010 |
10-K
| Annual Report for the period ended December 31, 2009 |
| 02/24/2009 |
10-K
| Annual Report for the period ended December 31, 2008 |
| 02/25/2008 |
10-K
| Annual Report for the period ended December 31, 2007 |
| 02/23/2007 |
10-K
| Annual Report for the period ended December 31, 2006 |
| 02/24/2006 |
10-K
| Annual Report for the period ended December 31, 2005 |
| 03/02/2005 |
10-K
| Annual Report for the period ended December 31, 2004 |
| 03/01/2004 |
10-K
| Annual Report for the period ended December 31, 2003 |
| 03/04/2003 |
10-K
| Annual Report for the period ended December 31, 2002 |
| 03/18/2002 |
10-K405
| Form 10-K405 - Annual report [Sections 13 and 15(d), S-K Item 405] |
| 03/08/2001 |
10-K
| Annual Report for the period ended December 31, 2000 |
| 03/07/2000 |
10-K405
| Form 10-K405 - Annual report [Sections 13 and 15(d), S-K Item 405] |
| 03/01/1999 |
10-K405
| Form 10-K405 - Annual report [Sections 13 and 15(d), S-K Item 405] |
| 03/20/1998 |
10-K
| Annual Report for the period ended December 31, 1997 |
| 03/03/1997 |
10-K
| Annual Report for the period ended December 31, 1996 |