| Date Filed | Type | Description |
| 04/30/2021 |
10-K/A
| Annual Report for the period ended December 31, 2020 [amend] |
| 03/16/2021 |
10-K
| Annual Report for the period ended December 31, 2020 |
| 03/16/2020 |
10-K
| Annual Report for the period ended December 31, 2019 |
| 03/08/2019 |
10-K
| Annual Report for the period ended December 31, 2018 |
| 04/30/2018 |
10-K/A
| Annual Report for the period ended December 31, 2017 [amend] |
| 03/16/2018 |
10-K
| Annual Report for the period ended December 31, 2017 |
| 03/16/2017 |
10-K
| Annual Report for the period ended December 31, 2016 |
| 03/28/2016 |
10-K
| Annual Report for the period ended December 31, 2015 |
| 03/17/2015 |
10-K/A
| Annual Report for the period ended December 31, 2014 [amend] |
| 03/13/2015 |
10-K
| Annual Report for the period ended December 31, 2014 |
| 03/26/2014 |
10-K
| Annual Report for the period ended December 31, 2013 |
| 03/01/2013 |
10-K
| Annual Report for the period ended December 31, 2012 |
| 09/14/2012 |
10-K/A
| Annual Report for the period ended December 31, 2011 [amend] |
| 09/14/2012 |
10-K/A
| Annual Report for the period ended December 31, 2010 [amend] |
| 09/14/2012 |
10-K/A
| Annual Report for the period ended December 31, 2009 [amend] |
| 03/02/2012 |
10-K
| Annual Report for the period ended December 31, 2011 |
| 02/28/2011 |
10-K
| Annual Report for the period ended December 31, 2010 |
| 03/09/2010 |
10-K
| Annual Report for the period ended December 31, 2009 |
| 11/18/2009 |
10-K/A
| Annual Report for the period ended December 31, 2008 [amend] |
| 06/09/2009 |
10-K/A
| Annual Report for the period ended December 31, 2008 [amend] |
| 03/09/2009 |
10-K
| Annual Report for the period ended December 31, 2008 |
| 03/20/2008 |
10-K
| Annual Report for the period ended December 31, 2007 |
| 03/14/2007 |
10-K
| Annual Report for the period ended December 31, 2006 |
| 03/08/2006 |
10-K
| Annual Report for the period ended December 31, 2005 |
| 11/03/2005 |
10-K/A
| Annual Report for the period ended December 31, 2004 [amend] |
| 03/09/2005 |
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 |
| 10/03/2003 |
10-K/A
| Annual Report for the period ended December 31, 2002 [amend] |
| 03/06/2003 |
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 |
| 03/14/2001 |
10-K405
| Form 10-K405 - Annual report [Sections 13 and 15(d), S-K Item 405] |
| 03/22/2000 |
10-K405
| Form 10-K405 - Annual report [Sections 13 and 15(d), S-K Item 405] |