| Date Filed | Type | Description |
| 03/15/2021 |
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 |
| 03/15/2019 |
10-K
| Annual Report for the period ended December 31, 2018 |
| 03/19/2018 |
10-K
| Annual Report for the period ended December 31, 2017 |
| 03/20/2017 |
10-K/A
| Annual Report for the period ended December 31, 2016 [amend] |
| 03/16/2017 |
10-K
| Annual Report for the period ended December 31, 2016 |
| 03/22/2016 |
10-K
| Annual Report for the period ended December 31, 2015 |
| 03/25/2015 |
10-K
| Annual Report for the period ended December 31, 2014 |
| 03/31/2014 |
10-K
| Annual Report for the period ended December 31, 2013 |
| 03/22/2013 |
10-K
| Annual Report for the period ended December 31, 2012 |
| 03/23/2012 |
10-K
| Annual Report for the period ended December 31, 2011 |
| 03/23/2011 |
10-K
| Annual Report for the period ended December 31, 2010 |
| 03/26/2010 |
10-K
| Annual Report for the period ended December 31, 2009 |
| 03/27/2009 |
10-K
| Annual Report for the period ended December 31, 2008 |
| 04/15/2008 |
10-K
| Annual Report for the period ended December 31, 2007 |
| 04/02/2007 |
10-K
| Annual Report for the period ended December 31, 2006 |
| 03/10/2006 |
10-K
| Annual Report for the period ended December 31, 2005 |
| 03/24/2005 |
10-K
| Annual Report for the period ended December 31, 2004 |
| 03/25/2004 |
10-K
| Annual Report for the period ended December 31, 2003 |