| Date Filed | Type | Description |
| 04/24/2015 |
10-K/A
| Annual Report for the period ended December 31, 2014 [amend] |
| 02/24/2015 |
10-K
| Annual Report for the period ended December 31, 2014 |
| 03/06/2014 |
10-K
| Annual Report for the period ended December 31, 2013 |
| 03/18/2013 |
10-K
| Annual Report for the period ended December 31, 2012 |
| 03/02/2012 |
10-K
| Annual Report for the period ended December 31, 2011 |
| 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 |
| 02/26/2009 |
10-K
| Annual Report for the period ended December 31, 2008 |
| 04/29/2008 |
10-K/A
| Annual Report for the period ended December 31, 2007 [amend] |
| 02/28/2008 |
10-K
| Annual Report for the period ended December 31, 2007 |
| 02/28/2007 |
10-K
| Annual Report for the period ended December 31, 2006 |
| 03/06/2006 |
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 |
| 02/23/2005 |
10-K/A
| Annual Report for the period ended December 31, 2003 [amend] |
| 03/15/2004 |
10-K
| Annual Report for the period ended December 31, 2003 |
| 03/27/2003 |
10-K
| Annual Report for the period ended December 31, 2002 |
| 04/01/2002 |
10-K/A
| Annual Report for the period ended December 31, 2000 [amend] |
| 04/01/2002 |
10-K
| Annual Report for the period ended December 31, 2001 |
| 03/29/2001 |
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 |
| 03/31/1999 |
10-K
| Annual Report for the period ended December 31, 1998 |
| 02/27/1998 |
10-K
| Annual Report for the period ended December 31, 1997 |
| 03/28/1997 |
10-K
| Annual Report for the period ended December 31, 1996 |