| Date Filed | Type | Description |
| 04/28/2023 |
10-K/A
| Annual Report for the period ended December 31, 2022 [amend] |
| 03/31/2023 |
10-K
| Annual Report for the period ended December 31, 2022 |
| 04/29/2022 |
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 |
| 07/06/2021 |
10-K/A
| Annual Report for the period ended December 31, 2020 [amend] |
| 04/06/2021 |
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 |
| 03/14/2019 |
10-K
| Annual Report for the period ended December 31, 2018 |
| 03/23/2018 |
10-K
| Annual Report for the period ended December 31, 2017 |
| 03/15/2017 |
10-K
| Annual Report for the period ended December 31, 2016 |
| 03/21/2016 |
10-K
| Annual Report for the period ended December 31, 2015 |
| 03/20/2015 |
10-K
| Annual Report for the period ended December 31, 2014 |
| 03/24/2014 |
10-K
| Annual Report for the period ended December 31, 2013 |
| 03/21/2013 |
10-K
| Annual Report for the period ended December 31, 2012 |
| 04/30/2012 |
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 |
| 05/02/2011 |
10-K/A
| Annual Report for the period ended December 31, 2010 [amend] |
| 03/30/2011 |
10-K
| Annual Report for the period ended December 31, 2010 |
| 04/30/2010 |
10-K/A
| Annual Report for the period ended April 26, 2010 [amend] |
| 03/30/2010 |
10-K
| Annual Report for the period ended March 23, 2010 |
| 04/30/2009 |
10-K/A
| Annual Report for the period ended April 26, 2009 [amend] |
| 03/27/2009 |
10-K
| Annual Report for the period ended December 31, 2008 |
| 04/01/1996 |
10-K405
| Form 10-K405 - Annual report [Sections 13 and 15(d), S-K Item 405] |