| Date Filed | Type | Description |
| 04/28/2022 |
10-K/A
| Annual Report for the period ended December 31, 2021 [amend] |
| 05/04/2021 |
10-K/A
| Annual Report for the period ended December 31, 2020 [amend] |
| 03/23/2021 |
10-K
| Annual Report for the period ended December 31, 2020 |
| 04/29/2020 |
10-K/A
| Annual Report for the period ended December 31, 2019 [amend] |
| 03/20/2020 |
10-K
| Annual Report for the period ended December 31, 2019 |
| 03/22/2019 |
10-K
| Annual Report for the period ended December 31, 2018 |
| 03/20/2018 |
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 |
| 04/29/2016 |
10-K/A
| Annual Report for the period ended December 31, 2015 [amend] |
| 03/14/2016 |
10-K
| Annual Report for the period ended December 31, 2015 |
| 03/13/2015 |
10-K
| Annual Report for the period ended December 31, 2014 |
| 03/13/2014 |
10-K
| Annual Report for the period ended December 31, 2013 |
| 03/14/2013 |
10-K
| Annual Report for the period ended December 31, 2012 |
| 03/15/2012 |
10-K
| Annual Report for the period ended December 31, 2011 |
| 03/15/2011 |
10-K
| Annual Report for the period ended December 31, 2010 |
| 03/01/2010 |
10-K
| Annual Report for the period ended December 31, 2009 |
| 03/26/2009 |
10-K/A
| Annual Report for the period ended December 31, 2008 [amend] |
| 03/13/2009 |
10-K
| Annual Report for the period ended December 31, 2008 |
| 05/20/2008 |
10-K/A
| Annual Report for the period ended December 31, 2007 [amend] |
| 03/20/2008 |
10-K
| Annual Report for the period ended December 31, 2007 |