| Date Filed | Type | Description |
| 02/28/2019 |
10-K
| Annual Report for the period ended December 31, 2018 |
| 04/27/2018 |
10-K/A
| Annual Report for the period ended December 31, 2017 [amend] |
| 02/22/2018 |
10-K
| Annual Report for the period ended December 31, 2017 |
| 02/24/2017 |
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 |
| 02/27/2015 |
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 |
| 02/28/2013 |
10-K
| Annual Report for the period ended December 31, 2012 |
| 02/29/2012 |
10-K
| Annual Report for the period ended December 31, 2011 |
| 03/01/2011 |
10-K
| Annual Report for the period ended December 31, 2010 |
| 03/03/2010 |
10-K/A
| Annual Report for the period ended December 31, 2009 [amend] |
| 03/01/2010 |
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 |
| 02/29/2008 |
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 |
| 03/01/2006 |
10-K
| Annual Report for the period ended December 31, 2005 |
| 04/18/2005 |
10-K/A
| Annual Report for the period ended December 31, 2004 [amend] |
| 02/28/2005 |
10-K
| Annual Report for the period ended December 31, 2004 |
| 04/14/2004 |
10-K/A
| Annual Report for the period ended December 31, 2003 [amend] |
| 02/27/2004 |
10-K
| Annual Report for the period ended December 31, 2003 |
| 04/16/2003 |
10-K/A
| Annual Report for the period ended December 31, 2002 [amend] |
| 03/21/2003 |
10-K
| Annual Report for the period ended December 31, 2002 |
| 04/26/2002 |
10-K/A
| Annual Report for the period ended December 31, 2001 [amend] |
| 03/27/2002 |
10-K
| Annual Report for the period ended December 31, 2001 |
| 10/01/2001 |
10-K/A
| Annual Report for the period ended December 31, 2000 [amend] |
| 05/02/2001 |
10-K/A
| Annual Report for the period ended December 31, 2000 [amend] |
| 04/27/2001 |
10-K/A
| Annual Report for the period ended December 31, 2000 [amend] |
| 03/27/2001 |
10-K
| Annual Report for the period ended December 31, 2000 |
| 04/24/2000 |
10-K/A
| Annual Report for the period ended December 31, 1999 [amend] |
| 03/24/2000 |
10-K405
| Form 10-K405 - Annual report [Sections 13 and 15(d), S-K Item 405] |
| 04/27/1999 |
10-K/A
| Annual Report for the period ended December 31, 1998 [amend] |
| 03/18/1999 |
10-K405
| Form 10-K405 - Annual report [Sections 13 and 15(d), S-K Item 405] |
| 04/14/1998 |
10-K/A
| Annual Report for the period ended December 31, 1997 [amend] |
| 03/18/1998 |
10-K405
| Form 10-K405 - Annual report [Sections 13 and 15(d), S-K Item 405] |
|