| Date Filed | Type | Description |
| 04/29/2021 |
10-K/A
| Annual Report for the period ended December 31, 2020 [amend] |
| 03/31/2021 |
10-K
| Annual Report for the period ended December 31, 2020 |
| 03/30/2020 |
10-K
| Annual Report for the period ended December 31, 2019 |
| 03/28/2019 |
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] |
| 03/14/2018 |
10-K
| Annual Report for the period ended December 31, 2017 |
| 05/01/2017 |
10-K/A
| Annual Report for the period ended December 31, 2016 [amend] |
| 03/15/2017 |
10-K
| Annual Report for the period ended December 31, 2016 |
| 04/29/2016 |
10-K/A
| Annual Report for the period ended December 31, 2015 [amend] |
| 04/04/2016 |
10-K/A
| Annual Report for the period ended December 31, 2015 [amend] |
| 03/30/2016 |
10-K
| Annual Report for the period ended December 31, 2015 |
| 11/25/2015 |
10-K/A
| Annual Report for the period ended December 31, 2014 [amend] |
| 04/30/2015 |
10-K/A
| Annual Report for the period ended December 31, 2014 [amend] |
| 03/02/2015 |
10-K
| Annual Report for the period ended December 31, 2014 |
| 04/30/2014 |
10-K/A
| Annual Report for the period ended December 31, 2013 [amend] |
| 02/27/2014 |
10-K
| Annual Report for the period ended December 31, 2013 |
| 04/30/2013 |
10-K/A
| Annual Report for the period ended December 31, 2012 [amend] |
| 02/28/2013 |
10-K
| Annual Report for the period ended December 31, 2012 |
| 04/27/2012 |
10-K/A
| Annual Report for the period ended December 31, 2011 [amend] |
| 02/29/2012 |
10-K
| Annual Report for the period ended December 31, 2011 |
| 04/29/2011 |
10-K/A
| Annual Report for the period ended December 31, 2010 [amend] |
| 02/25/2011 |
10-K
| Annual Report for the period ended December 31, 2010 |
| 04/30/2010 |
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 |
| 03/02/2009 |
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 |
| 03/15/2007 |
10-K
| Annual Report for the period ended December 31, 2006 |
| 09/28/2006 |
10-K/A
| Annual Report for the period ended December 31, 2005 [amend] |
| 03/21/2006 |
10-K
| Annual Report for the period ended December 31, 2005 |
| 03/31/2005 |
10-K
| Annual Report for the period ended December 31, 2004 |
| 05/13/2004 |
10-K
| Annual Report for the period ended January 31, 2004 |
| 05/16/2003 |
10-K
| Annual Report for the period ended January 31, 2003 |
| 05/01/2002 |
10-K
| Annual Report for the period ended January 31, 2002 |
| 05/01/2001 |
10-K
| Annual Report for the period ended January 31, 2001 |
|