| Date Filed | Type | Description |
| 04/10/2020 |
10-K/A
| Annual Report for the period ended December 31, 2019 [amend] |
| 02/26/2020 |
10-K
| Annual Report for the period ended December 31, 2019 |
| 03/01/2019 |
10-K
| Annual Report for the period ended December 31, 2018 |
| 02/28/2018 |
10-K
| Annual Report for the period ended December 31, 2017 |
| 03/01/2017 |
10-K
| Annual Report for the period ended December 31, 2016 |
| 05/10/2016 |
10-K
| Annual Report for the period ended December 31, 2015 |
| 04/30/2015 |
10-K/A
| Annual Report for the period ended December 31, 2014 [amend] |
| 03/17/2015 |
10-K
| Annual Report for the period ended December 31, 2014 |
| 03/14/2014 |
10-K
| Annual Report for the period ended December 31, 2013 |
| 03/19/2013 |
10-K/A
| Annual Report for the period ended December 31, 2012 [amend] |
| 03/01/2013 |
10-K
| Annual Report for the period ended December 31, 2012 |
| 03/15/2012 |
10-K
| Annual Report for the period ended December 31, 2011 |
| 03/11/2011 |
10-K
| Annual Report for the period ended December 31, 2010 |
| 03/16/2010 |
10-K
| Annual Report for the period ended December 31, 2009 |
| 04/29/2009 |
10-K/A
| Annual Report for the period ended December 31, 2008 [amend] |
| 03/30/2009 |
10-K
| Annual Report for the period ended December 31, 2008 |
| 03/14/2008 |
10-K
| Annual Report for the period ended December 31, 2007 |
| 03/16/2007 |
10-K
| Annual Report for the period ended December 31, 2006 |
| 03/30/2006 |
10-K
| Annual Report for the period ended December 31, 2005 |
| 03/30/2005 |
10-K
| Annual Report for the period ended December 31, 2004 |
| 03/30/2004 |
10-K
| Annual Report for the period ended December 31, 2003 |
| 05/21/2003 |
10-K
| Annual Report for the period ended December 31, 2002 |
| 10/04/2002 |
10-K/A
| Annual Report for the period ended December 31, 2001 [amend] |
| 04/30/2002 |
10-K/A
| Annual Report for the period ended December 31, 2001 [amend] |
| 04/16/2002 |
10-K
| Annual Report for the period ended December 31, 2001 |
| 04/17/2001 |
10-K
| Annual Report for the period ended December 31, 2000 |
| 04/06/2000 |
10-K/A
| Annual Report for the period ended December 31, 1999 [amend] |
| 03/28/2000 |
10-K
| Annual Report for the period ended December 31, 1999 |
| 07/01/1999 |
10-K/A
| Annual Report for the period ended December 31, 1998 [amend] |
| 03/29/1999 |
10-K
| Annual Report for the period ended December 31, 1998 |
| 04/20/1998 |
10-K/A
| Annual Report for the period ended December 31, 1997 [amend] |
| 03/31/1998 |
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 |
| 10/28/1996 |
10-K/A
| Annual Report for the period ended June 30, 1996 [amend] |