| Date Filed | Type | Description |
| 04/15/2022 |
10-K
| Annual Report for the period ended December 31, 2021 |
| 04/16/2019 |
10-K
| Annual Report for the period ended December 31, 2018 |
| 04/16/2018 |
10-K
| Annual Report for the period ended December 31, 2017 |
| 03/28/2017 |
10-K
| Annual Report for the period ended December 31, 2016 |
| 10/21/2016 |
10-K
| Annual Report for the period ended December 31, 2015 |
| 04/30/2015 |
10-K/A
| Annual Report for the period ended December 31, 2014 [amend] |
| 03/31/2015 |
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 |
| 03/18/2013 |
10-K
| Annual Report for the period ended December 31, 2012 |
| 10/16/2012 |
10-K/A
| Annual Report for the period ended December 31, 2011 [amend] |
| 03/29/2012 |
10-K
| Annual Report for the period ended December 31, 2011 |
| 03/30/2011 |
10-K
| Annual Report for the period ended December 31, 2010 |
| 01/07/2011 |
10-K/A
| Annual Report for the period ended December 31, 2009 [amend] |
| 04/09/2010 |
10-K/A
| Annual Report for the period ended December 31, 2009 [amend] |
| 03/29/2010 |
10-K
| Annual Report for the period ended December 31, 2009 |
| 08/10/2009 |
10-K/A
| Annual Report for the period ended December 31, 2008 [amend] |
| 03/31/2009 |
10-K
| Annual Report for the period ended December 31, 2008 |
| 03/25/2008 |
10-K
| Annual Report for the period ended December 31, 2007 |
| 11/20/2007 |
10-K/A
| Annual Report for the period ended December 31, 2006 [amend] |
| 11/14/2007 |
10-K/A
| Annual Report for the period ended December 31, 2006 [amend] |
| 02/26/2007 |
10-K
| Annual Report for the period ended December 31, 2006 |