| Date Filed | Type | Description |
| 04/06/2018 |
10-K/A
| Annual Report for the period ended December 31, 2017 [amend] |
| 02/23/2018 |
10-K
| Annual Report for the period ended December 31, 2017 |
| 02/23/2017 |
10-K
| Annual Report for the period ended December 31, 2016 |
| 02/26/2016 |
10-K
| Annual Report for the period ended December 31, 2015 |
| 02/25/2015 |
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 |
| 02/27/2013 |
10-K
| Annual Report for the period ended December 31, 2012 |
| 02/27/2012 |
10-K
| Annual Report for the period ended December 31, 2011 |
| 03/15/2011 |
10-K/A
| Annual Report for the period ended December 31, 2010 [amend] |
| 02/25/2011 |
10-K
| Annual Report for the period ended December 31, 2010 |
| 03/01/2010 |
10-K
| Annual Report for the period ended December 31, 2009 |
| 03/02/2009 |
10-K
| Annual Report for the period ended December 31, 2008 |
| 03/17/2008 |
10-K/A
| Annual Report for the period ended December 31, 2007 [amend] |
| 02/29/2008 |
10-K
| Annual Report for the period ended December 31, 2007 |
| 03/01/2007 |
10-K
| Annual Report for the period ended December 31, 2006 |
| 11/09/2006 |
10-K/A
| Annual Report for the period ended December 31, 2005 [amend] |
| 03/07/2006 |
10-K
| Annual Report for the period ended December 31, 2005 |
| 03/11/2005 |
10-K
| Annual Report for the period ended December 31, 2004 |
| 04/29/2004 |
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 |
| 03/28/2003 |
10-K
| Annual Report for the period ended December 31, 2002 |
| 03/26/2002 |
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 |
| 03/30/2000 |
10-K
| Annual Report for the period ended December 31, 1999 |
| 11/29/1999 |
10-K
| Annual Report for the period ended December 31, 1998 |
| 05/21/1999 |
10-K/A
| Annual Report for the period ended November 30, 1998 [amend] |
| 03/04/1999 |
10-K/A
| Annual Report for the period ended November 30, 1998 [amend] |
| 03/01/1999 |
10-K
| Annual Report for the period ended November 30, 1998 |
| 06/26/1998 |
10-K/A
| Annual Report for the period ended November 30, 1997 [amend] |
| 02/25/1998 |
10-K
| Annual Report for the period ended November 30, 1997 |
| 02/24/1997 |
10-K405
| Form 10-K405 - Annual report [Sections 13 and 15(d), S-K Item 405] |