| Date Filed | Type | Description |
| 03/04/2020 |
10-K
| Annual Report for the period ended December 31, 2019 |
| 04/29/2019 |
10-K/A
| Annual Report for the period ended December 31, 2018 [amend] |
| 03/11/2019 |
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 |
| 02/21/2017 |
10-K
| Annual Report for the period ended December 31, 2016 |
| 02/24/2016 |
10-K
| Annual Report for the period ended December 31, 2015 |
| 02/25/2015 |
10-K
| Annual Report for the period ended December 31, 2014 |
| 03/10/2014 |
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 |
| 03/06/2012 |
10-K
| Annual Report for the period ended December 31, 2011 |
| 03/01/2011 |
10-K
| Annual Report for the period ended December 31, 2010 |
| 03/03/2010 |
10-K
| Annual Report for the period ended December 31, 2009 |
| 06/05/2009 |
10-K/A
| Annual Report for the period ended December 31, 2008 [amend] |
| 03/02/2009 |
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 |
| 03/01/2007 |
10-K
| Annual Report for the period ended December 31, 2006 |
| 03/10/2006 |
10-K
| Annual Report for the period ended December 31, 2005 |
| 03/16/2005 |
10-K
| Annual Report for the period ended December 31, 2004 |
| 03/22/2004 |
10-K/A
| Annual Report for the period ended December 31, 2003 [amend] |
| 03/12/2004 |
10-K
| Annual Report for the period ended December 31, 2003 |
| 09/26/2003 |
10-K/A
| Annual Report for the period ended December 31, 2002 [amend] |
| 03/20/2003 |
10-K
| Annual Report for the period ended December 31, 2002 |
| 03/18/2002 |
10-K
| Annual Report for the period ended December 31, 2001 |
| 03/22/2001 |
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 |
| 02/26/1999 |
10-K/A
| Annual Report for the period ended August 31, 1998 [amend] |
| 11/30/1998 |
10-K
| Annual Report for the period ended August 31, 1998 |
| 02/19/1998 |
10-K/A
| Annual Report for the period ended August 31, 1997 [amend] |
| 10/22/1997 |
10-K
| Annual Report for the period ended August 31, 1997 |
| 10/21/1996 |
10-K
| Annual Report for the period ended August 31, 1996 |
| 11/09/1995 |
10-K
| Annual Report for the period ended August 31, 1995 |
| 11/04/1994 |
10-K
| Annual Report for the period ended August 31, 1994 |
| 02/24/1994 |
10-K/A
| Annual Report for the period ended August 31, 1993 [amend] |