| Date Filed | Type | Description |
| 03/08/2023 |
10-K
| Annual Report for the period ended December 31, 2022 |
| 03/09/2022 |
10-K
| Annual Report for the period ended December 31, 2021 |
| 03/03/2021 |
10-K
| Annual Report for the period ended December 31, 2020 |
| 03/04/2020 |
10-K
| Annual Report for the period ended December 31, 2019 |
| 03/06/2019 |
10-K
| Annual Report for the period ended December 31, 2018 |
| 03/07/2018 |
10-K
| Annual Report for the period ended December 31, 2017 |
| 03/15/2017 |
10-K
| Annual Report for the period ended December 31, 2016 |
| 03/09/2016 |
10-K
| Annual Report for the period ended December 31, 2015 |
| 03/04/2015 |
10-K
| Annual Report for the period ended December 31, 2014 |
| 03/05/2014 |
10-K
| Annual Report for the period ended December 31, 2013 |
| 03/06/2013 |
10-K
| Annual Report for the period ended December 31, 2012 |
| 03/07/2012 |
10-K
| Annual Report for the period ended December 31, 2011 |
| 03/08/2011 |
10-K
| Annual Report for the period ended December 31, 2010 |
| 03/10/2010 |
10-K
| Annual Report for the period ended December 31, 2009 |
| 03/11/2009 |
10-K
| Annual Report for the period ended December 31, 2008 |
| 03/24/2008 |
10-K/A
| Annual Report for the period ended December 31, 2007 [amend] |
| 03/13/2008 |
10-K
| Annual Report for the period ended December 31, 2007 |
| 03/14/2007 |
10-K
| Annual Report for the period ended December 31, 2006 |
| 04/20/2006 |
10-K/A
| Annual Report for the period ended December 31, 2005 [amend] |
| 03/14/2006 |
10-K
| Annual Report for the period ended December 31, 2005 |
| 05/02/2005 |
10-K/A
| Annual Report for the period ended December 31, 2004 [amend] |
| 03/14/2005 |
10-K
| Annual Report for the period ended December 31, 2004 |
| 03/26/2004 |
10-K
| Annual Report for the period ended December 31, 2003 |
| 05/22/2003 |
10-K
| Annual Report for the period ended December 31, 2002 |
| 04/22/2002 |
10-KT
| Form 10-KT - Transition reports [Rule 13a-10 or 15d-10] |
| 07/30/2001 |
10-K405
| Form 10-K405 - Annual report [Sections 13 and 15(d), S-K Item 405] |
| 08/31/2000 |
10-K405/A
| Form 10-K405/A - Annual report [Sections 13 and 15(d), S-K Item 405] [Amend] |
| 08/01/2000 |
10-K405
| Form 10-K405 - Annual report [Sections 13 and 15(d), S-K Item 405] |
| 08/13/1999 |
10-K/A
| Annual Report for the period ended April 30, 1999 [amend] |
| 07/29/1999 |
10-K
| Annual Report for the period ended April 30, 1999 |
| 07/29/1998 |
10-K
| Annual Report for the period ended April 30, 1998 |
| 07/31/1997 |
10-K405/A
| Form 10-K405/A - Annual report [Sections 13 and 15(d), S-K Item 405] [Amend] |
| 07/29/1997 |
10-K405
| Form 10-K405 - Annual report [Sections 13 and 15(d), S-K Item 405] |
| 07/30/1996 |
10-K405
| Form 10-K405 - Annual report [Sections 13 and 15(d), S-K Item 405] |