| Date Filed | Type | Description |
| 02/15/2019 |
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 |
| 02/16/2017 |
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 |
| 02/20/2015 |
10-K
| Annual Report for the period ended December 31, 2014 |
| 02/26/2014 |
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 |
| 02/24/2012 |
10-K
| Annual Report for the period ended December 31, 2011 |
| 06/24/2011 |
10-K/A
| Annual Report for the period ended May 23, 2011 [amend] |
| 02/28/2011 |
10-K
| Annual Report for the period ended December 31, 2010 |
| 03/05/2010 |
10-K
| Annual Report for the period ended December 31, 2009 |
| 03/06/2009 |
10-K
| Annual Report for the period ended December 31, 2008 |
| 03/03/2008 |
10-K
| Annual Report for the period ended December 31, 2007 |
| 02/22/2007 |
10-K
| Annual Report for the period ended December 31, 2006 |
| 03/15/2006 |
10-K
| Annual Report for the period ended December 31, 2005 |
| 03/15/2005 |
10-K
| Annual Report for the period ended December 31, 2004 |
| 03/15/2004 |
10-K
| Annual Report for the period ended December 31, 2003 |
| 04/09/2003 |
10-K/A
| Annual Report for the period ended December 31, 2002 [amend] |
| 03/31/2003 |
10-K
| Annual Report for the period ended December 31, 2002 |
| 03/27/2002 |
10-K
| Annual Report for the period ended December 31, 2001 |
| 02/15/2001 |
10-K
| Annual Report for the period ended December 31, 2000 |
| 03/24/2000 |
10-K
| Annual Report for the period ended December 31, 1999 |