| Date Filed | Type | Description |
| 03/30/2017 |
10-K
| Annual Report for the period ended December 31, 2016 |
| 03/29/2016 |
10-K
| Annual Report for the period ended December 31, 2015 |
| 03/31/2015 |
10-K
| Annual Report for the period ended December 31, 2014 |
| 03/31/2014 |
10-K
| Annual Report for the period ended December 31, 2013 |
| 03/28/2013 |
10-K
| Annual Report for the period ended December 31, 2012 |
| 03/21/2012 |
10-K
| Annual Report for the period ended December 31, 2011 |
| 01/19/2012 |
10-K/A
| Annual Report for the period ended December 31, 2010 [amend] |
| 03/31/2011 |
10-K
| Annual Report for the period ended December 31, 2010 |
| 03/25/2010 |
10-K
| Annual Report for the period ended December 31, 2009 |
| 04/30/2009 |
10-K/A
| Annual Report for the period ended December 31, 2008 [amend] |
| 03/16/2009 |
10-K
| Annual Report for the period ended December 31, 2008 |
| 03/17/2008 |
10-K
| Annual Report for the period ended December 31, 2007 |
| 03/05/2007 |
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 |
| 03/29/2005 |
10-K/A
| Annual Report for the period ended December 31, 2004 [amend] |
| 03/11/2005 |
10-K
| Annual Report for the period ended December 31, 2004 |
| 03/29/2004 |
10-K
| Annual Report for the period ended December 31, 2003 |
| 03/31/2003 |
10-K
| Annual Report for the period ended December 31, 2002 |
| 04/01/2002 |
10-K405
| Form 10-K405 - Annual report [Sections 13 and 15(d), S-K Item 405] |
| 10/25/2000 |
10-K405
| Form 10-K405 - Annual report [Sections 13 and 15(d), S-K Item 405] |
| 12/09/1999 |
10-K/A
| Annual Report for the period ended July 31, 1999 [amend] |
| 10/15/1999 |
10-K405
| Form 10-K405 - Annual report [Sections 13 and 15(d), S-K Item 405] |
| 11/30/1998 |
10-K/A
| Annual Report for the period ended July 31, 1998 [amend] |
| 10/29/1998 |
10-K
| Annual Report for the period ended July 31, 1998 |
| 10/29/1997 |
10-K
| Annual Report for the period ended July 31, 1997 |
| 10/23/1996 |
10-K
| Annual Report for the period ended July 31, 1996 |