| Date Filed | Type | Description |
| 02/24/2020 |
10-K
| Annual Report for the period ended December 31, 2019 |
| 03/28/2019 |
10-K
| Annual Report for the period ended December 31, 2018 |
| 02/16/2018 |
10-K
| Annual Report for the period ended December 31, 2017 |
| 02/09/2017 |
10-K
| Annual Report for the period ended December 31, 2016 |
| 02/11/2016 |
10-K
| Annual Report for the period ended December 31, 2015 |
| 02/12/2015 |
10-K
| Annual Report for the period ended December 31, 2014 |
| 02/12/2014 |
10-K
| Annual Report for the period ended December 31, 2013 |
| 02/12/2013 |
10-K
| Annual Report for the period ended December 31, 2012 |
| 02/09/2012 |
10-K
| Annual Report for the period ended December 31, 2011 |
| 02/17/2011 |
10-K
| Annual Report for the period ended December 31, 2010 |
| 02/24/2010 |
10-K
| Annual Report for the period ended December 31, 2009 |
| 03/31/2009 |
10-K/A
| Annual Report for the period ended December 31, 2008 [amend] |
| 02/26/2009 |
10-K
| Annual Report for the period ended December 31, 2008 |
| 02/28/2008 |
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 |
| 05/19/2006 |
10-K
| Annual Report for the period ended December 31, 2005 |
| 03/31/2005 |
10-K
| Annual Report for the period ended December 31, 2004 |
| 09/22/2004 |
10-K/A
| Annual Report for the period ended December 31, 2003 [amend] |
| 09/13/2004 |
10-K/A
| Annual Report for the period ended December 31, 2003 [amend] |
| 03/24/2004 |
10-K
| Annual Report for the period ended December 31, 2003 |
| 03/31/2003 |
10-K
| Annual Report for the period ended December 31, 2002 |
| 03/29/2002 |
10-K
| Annual Report for the period ended December 31, 2001 |
| 03/15/2001 |
10-K
| Annual Report for the period ended December 31, 2000 |
| 02/29/2000 |
10-K
| Annual Report for the period ended December 31, 1999 |
| 03/23/1999 |
10-K/A
| Annual Report for the period ended December 31, 1998 [amend] |
| 03/08/1999 |
10-K/A
| Annual Report for the period ended December 31, 1998 [amend] |
| 02/18/1999 |
10-K
| Annual Report for the period ended December 31, 1998 |
| 04/01/1998 |
10-K/A
| Annual Report for the period ended December 31, 1997 [amend] |
| 03/11/1998 |
10-K
| Annual Report for the period ended December 31, 1997 |
| 03/31/1997 |
10-K
| Annual Report for the period ended December 31, 1996 |