| Date Filed | Type | Description |
| 06/17/2021 |
10-K
| Annual Report for the period ended December 31, 2020 |
| 03/12/2021 |
10-K
| Annual Report for the period ended December 31, 2019 |
| 03/08/2021 |
10-K/A
| Annual Report for the period ended December 31, 2018 [amend] |
| 12/14/2020 |
10-K/A
| Annual Report for the period ended December 31, 2018 [amend] |
| 03/18/2019 |
10-K
| Annual Report for the period ended December 31, 2018 |
| 03/30/2018 |
10-K
| Annual Report for the period ended December 31, 2017 |
| 03/29/2017 |
10-K
| Annual Report for the period ended December 31, 2016 |
| 03/30/2016 |
10-K
| Annual Report for the period ended December 31, 2015 |
| 10/16/2015 |
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] |
| 04/03/2015 |
10-K/A
| Annual Report for the period ended December 31, 2014 [amend] |
| 04/01/2015 |
10-K
| Annual Report for the period ended December 31, 2014 |
| 04/30/2014 |
10-K/A
| Annual Report for the period ended December 31, 2013 [amend] |
| 03/31/2014 |
10-K
| Annual Report for the period ended December 31, 2013 |
| 02/18/2014 |
10-K/A
| Annual Report for the period ended December 31, 2012 [amend] |
| 11/21/2013 |
10-K/A
| Annual Report for the period ended December 31, 2012 [amend] |
| 04/25/2013 |
10-K/A
| Annual Report for the period ended December 31, 2012 [amend] |
| 04/02/2013 |
10-K
| Annual Report for the period ended December 31, 2012 |
| 05/04/2012 |
10-K/A
| Annual Report for the period ended December 31, 2011 [amend] |
| 04/30/2012 |
10-K/A
| Annual Report for the period ended December 31, 2009 [amend] |
| 03/30/2012 |
10-K
| Annual Report for the period ended December 31, 2011 |
| 03/31/2011 |
10-K
| Annual Report for the period ended December 31, 2010 |
| 04/30/2010 |
10-K/A
| Annual Report for the period ended December 31, 2009 [amend] |
| 03/31/2010 |
10-K
| Annual Report for the period ended December 31, 2009 |
| 04/15/2009 |
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 |