| Date Filed | Type | Description |
| 02/14/2019 |
10-K
| Annual Report for the period ended December 31, 2018 |
| 02/15/2018 |
10-K
| Annual Report for the period ended December 31, 2017 |
| 02/17/2017 |
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 |
| 02/20/2015 |
10-K
| Annual Report for the period ended December 31, 2014 |
| 02/28/2014 |
10-K
| Annual Report for the period ended December 31, 2013 |
| 02/19/2013 |
10-K
| Annual Report for the period ended December 31, 2012 |
| 02/21/2012 |
10-K
| Annual Report for the period ended December 31, 2011 |
| 02/23/2011 |
10-K
| Annual Report for the period ended December 31, 2010 |
| 02/23/2010 |
10-K
| Annual Report for the period ended December 31, 2009 |
| 02/25/2009 |
10-K
| Annual Report for the period ended December 31, 2008 |
| 02/28/2008 |
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 |
| 03/03/2006 |
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 |
| 03/04/2004 |
10-K
| Annual Report for the period ended December 31, 2003 |
| 03/14/2003 |
10-K
| Annual Report for the period ended December 31, 2002 |
| 03/25/2002 |
10-K
| Annual Report for the period ended December 31, 2001 |
| 06/27/2001 |
10-K/A
| Annual Report for the period ended December 31, 2000 [amend] |
| 03/15/2001 |
10-K
| Annual Report for the period ended December 30, 2000 |
| 06/22/2000 |
10-K/A
| Annual Report for the period ended December 31, 1999 [amend] |
| 03/16/2000 |
10-K
| Annual Report for the period ended December 31, 1999 |
| 06/22/1999 |
10-K/A
| Annual Report for the period ended December 31, 1998 [amend] |
| 03/15/1999 |
10-K
| Annual Report for the period ended December 31, 1998 |
| 06/26/1998 |
10-K405/A
| Form 10-K405/A - Annual report [Sections 13 and 15(d), S-K Item 405] [Amend] |
| 03/18/1998 |
10-K405
| Form 10-K405 - Annual report [Sections 13 and 15(d), S-K Item 405] |
| 06/25/1997 |
10-K405/A
| Form 10-K405/A - Annual report [Sections 13 and 15(d), S-K Item 405] [Amend] |
| 03/12/1997 |
10-K
| Annual Report for the period ended December 31, 1996 |
| 06/27/1996 |
10-K405/A
| Form 10-K405/A - Annual report [Sections 13 and 15(d), S-K Item 405] [Amend] |
| 03/12/1996 |
10-K405
| Form 10-K405 - Annual report [Sections 13 and 15(d), S-K Item 405] |
| 06/28/1995 |
10-K/A
| Annual Report for the period ended December 31, 1994 [amend] |
| 03/07/1995 |
10-K405
| Form 10-K405 - Annual report [Sections 13 and 15(d), S-K Item 405] |
| 06/29/1994 |
10-K/A
| Annual Report for the period ended December 31, 1993 [amend] |
| 03/18/1994 |
10-K
| Annual Report for the period ended December 31, 1993 |