| Date Filed | Type | Description |
| 02/14/2019 |
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 |
| 04/28/2017 |
10-K/A
| Annual Report for the period ended December 31, 2016 [amend] |
| 03/01/2017 |
10-K
| Annual Report for the period ended December 31, 2016 |
| 02/17/2016 |
10-K
| Annual Report for the period ended December 31, 2015 |
| 02/12/2015 |
10-K
| Annual Report for the period ended December 31, 2014 |
| 02/20/2014 |
10-K
| Annual Report for the period ended December 31, 2013 |
| 10/10/2013 |
10-K/A
| Annual Report for the period ended December 31, 2012 [amend] |
| 08/01/2013 |
10-K
| Annual Report for the period ended December 31, 2012 |
| 02/16/2012 |
10-K
| Annual Report for the period ended December 31, 2011 |
| 08/11/2011 |
10-K/A
| Annual Report for the period ended December 31, 2010 [amend] |
| 07/22/2011 |
10-K/A
| Annual Report for the period ended December 31, 2010 [amend] |
| 03/10/2011 |
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 |
| 02/20/2009 |
10-K
| Annual Report for the period ended December 31, 2008 |
| 02/29/2008 |
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 |
| 03/16/2006 |
10-K
| Annual Report for the period ended December 31, 2005 |
| 03/23/2005 |
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 |
| 03/21/2003 |
10-K
| Annual Report for the period ended December 31, 2002 |
| 03/29/2002 |
10-K
| Annual Report for the period ended December 31, 2001 |
| 03/23/2001 |
10-K
| Annual Report for the period ended December 31, 2000 |
| 03/28/2000 |
10-K405
| Form 10-K405 - Annual report [Sections 13 and 15(d), S-K Item 405] |
| 11/29/1999 |
10-K/A
| Annual Report for the period ended July 31, 1999 [amend] |
| 10/29/1999 |
10-K
| Annual Report for the period ended July 31, 1999 |
| 10/29/1998 |
10-K405
| Form 10-K405 - Annual report [Sections 13 and 15(d), S-K Item 405] |
| 11/26/1997 |
10-K/A
| Annual Report for the period ended July 31, 1997 [amend] |
| 10/01/1997 |
10-K405
| Form 10-K405 - Annual report [Sections 13 and 15(d), S-K Item 405] |
| 10/29/1996 |
10-K405
| Form 10-K405 - Annual report [Sections 13 and 15(d), S-K Item 405] |
| 10/27/1995 |
10-K
| Annual Report for the period ended July 31, 1995 |