| Date Filed | Type | Description |
| 04/28/2022 |
10-K/A
| Annual Report for the period ended December 31, 2021 [amend] |
| 03/31/2022 |
10-K
| Annual Report for the period ended December 31, 2021 |
| 03/25/2021 |
10-K
| Annual Report for the period ended December 31, 2020 |
| 04/28/2020 |
10-K/A
| Annual Report for the period ended December 31, 2019 [amend] |
| 03/18/2020 |
10-K
| Annual Report for the period ended December 31, 2019 |
| 03/29/2019 |
10-K
| Annual Report for the period ended December 31, 2018 |
| 03/30/2018 |
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 |
| 03/23/2017 |
10-K
| Annual Report for the period ended December 31, 2016 |
| 03/15/2016 |
10-K
| Annual Report for the period ended December 31, 2015 |
| 11/23/2015 |
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] |
| 03/25/2015 |
10-K
| Annual Report for the period ended December 31, 2014 |
| 09/17/2014 |
10-K/A
| Annual Report for the period ended December 31, 2013 [amend] |
| 03/27/2014 |
10-K
| Annual Report for the period ended December 31, 2013 |
| 02/28/2013 |
10-K
| Annual Report for the period ended December 31, 2012 |
| 02/22/2012 |
10-K
| Annual Report for the period ended December 31, 2011 |
| 02/22/2011 |
10-K
| Annual Report for the period ended December 31, 2010 |
| 03/16/2010 |
10-K
| Annual Report for the period ended December 31, 2009 |
| 11/19/2009 |
10-K/A
| Annual Report for the period ended December 31, 2008 [amend] |
| 03/26/2009 |
10-K
| Annual Report for the period ended December 31, 2008 |
| 04/30/2008 |
10-K/A
| Annual Report for the period ended December 31, 2007 [amend] |
| 03/27/2008 |
10-K
| Annual Report for the period ended December 31, 2007 |
| 10/16/2000 |
10-K
| Annual Report for the period ended June 30, 2000 |