| Date Filed | Type | Description |
| 04/28/2016 |
10-K/A
| Annual Report for the period ended December 31, 2015 [amend] |
| 02/18/2016 |
10-K
| Annual Report for the period ended December 31, 2015 |
| 02/19/2015 |
10-K
| Annual Report for the period ended December 31, 2014 |
| 02/25/2014 |
10-K
| Annual Report for the period ended December 31, 2013 |
| 09/24/2013 |
10-K/A
| Annual Report for the period ended December 31, 2012 [amend] |
| 02/21/2013 |
10-K
| Annual Report for the period ended December 31, 2012 |
| 02/24/2012 |
10-K
| Annual Report for the period ended December 31, 2011 |
| 03/01/2011 |
10-K/A
| Annual Report for the period ended December 31, 2010 [amend] |
| 02/28/2011 |
10-K
| Annual Report for the period ended December 31, 2010 |
| 11/15/2010 |
10-K/A
| Annual Report for the period ended December 31, 2009 [amend] |
| 02/26/2010 |
10-K
| Annual Report for the period ended December 31, 2009 |
| 02/27/2009 |
10-K
| Annual Report for the period ended December 31, 2008 |
| 02/26/2008 |
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 |
| 03/02/2006 |
10-K
| Annual Report for the period ended December 31, 2005 |
| 03/08/2005 |
10-K/A
| Annual Report for the period ended December 31, 2004 [amend] |
| 03/07/2005 |
10-K
| Annual Report for the period ended December 31, 2004 |
| 05/24/2004 |
10-K/A
| Annual Report for the period ended December 31, 2003 [amend] |
| 03/12/2004 |
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 |
| 12/20/2002 |
10-K/A
| Annual Report for the period ended December 31, 2001 [amend] |
| 04/01/2002 |
10-K
| Annual Report for the period ended December 31, 2001 |
| 01/16/2002 |
10-K405/A
| Form 10-K405/A - Annual report [Sections 13 and 15(d), S-K Item 405] [Amend] |
| 03/26/2001 |
10-K405
| Form 10-K405 - Annual report [Sections 13 and 15(d), S-K Item 405] |
| 03/27/2000 |
10-K405
| Form 10-K405 - Annual report [Sections 13 and 15(d), S-K Item 405] |
| 03/29/1999 |
10-K405
| Form 10-K405 - Annual report [Sections 13 and 15(d), S-K Item 405] |
| 03/26/1998 |
10-K405
| Form 10-K405 - Annual report [Sections 13 and 15(d), S-K Item 405] |
| 03/28/1997 |
10-K405
| Form 10-K405 - Annual report [Sections 13 and 15(d), S-K Item 405] |
| 03/25/1996 |
10-K405
| Form 10-K405 - Annual report [Sections 13 and 15(d), S-K Item 405] |
| 03/27/1995 |
10-K
| Annual Report for the period ended December 31, 1994 |
| 03/25/1994 |
10-K
| Annual Report for the period ended December 31, 1993 |