| Date Filed | Type | Description |
| 04/23/2014 |
10-K/A
| Annual Report for the period ended December 31, 2013 [amend] |
| 03/07/2014 |
10-K
| Annual Report for the period ended December 31, 2013 |
| 02/22/2013 |
10-K
| Annual Report for the period ended December 31, 2012 |
| 02/17/2012 |
10-K
| Annual Report for the period ended December 31, 2011 |
| 02/18/2011 |
10-K
| Annual Report for the period ended December 31, 2010 |
| 02/18/2010 |
10-K
| Annual Report for the period ended December 31, 2009 |
| 02/20/2009 |
10-K
| Annual Report for the period ended December 31, 2008 |
| 02/21/2008 |
10-K
| Annual Report for the period ended December 31, 2007 |
| 02/23/2007 |
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 |
| 03/14/2005 |
10-K
| Annual Report for the period ended December 31, 2004 |
| 03/12/2004 |
10-K
| Annual Report for the period ended December 31, 2003 |
| 02/28/2003 |
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 |
| 04/02/2001 |
10-K
| Annual Report for the period ended December 31, 2000 |
| 03/29/2000 |
10-K/A
| Annual Report for the period ended December 31, 1999 [amend] |
| 03/02/2000 |
10-K
| Annual Report for the period ended December 31, 1999 |
| 03/30/1999 |
10-K
| Annual Report for the period ended December 31, 1998 |
| 07/01/1998 |
10-K/A
| Annual Report for the period ended December 31, 1997 [amend] |
| 06/16/1998 |
10-K/A
| Annual Report for the period ended December 31, 1997 [amend] |
| 03/25/1998 |
10-K
| Annual Report for the period ended December 31, 1997 |