| Date Filed | Type | Description |
| 03/17/2020 |
10-K
| Annual Report for the period ended December 31, 2019 |
| 04/30/2019 |
10-K/A
| Annual Report for the period ended December 31, 2018 [amend] |
| 03/19/2019 |
10-K
| Annual Report for the period ended December 31, 2018 |
| 07/27/2018 |
10-K/A
| Annual Report for the period ended December 31, 2017 [amend] |
| 03/16/2018 |
10-K
| Annual Report for the period ended December 31, 2017 |
| 03/09/2017 |
10-K
| Annual Report for the period ended December 31, 2016 |
| 03/10/2016 |
10-K
| Annual Report for the period ended December 31, 2015 |
| 03/10/2016 |
10-K/A
| Annual Report for the period ended December 31, 2014 [amend] |
| 03/06/2015 |
10-K
| Annual Report for the period ended December 31, 2014 |
| 04/21/2014 |
10-K/A
| Annual Report for the period ended December 31, 2013 [amend] |
| 03/18/2014 |
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 |
| 03/07/2012 |
10-K
| Annual Report for the period ended December 31, 2011 |
| 04/29/2011 |
10-K/A
| Annual Report for the period ended April 27, 2011 [amend] |
| 03/02/2011 |
10-K
| Annual Report for the period ended December 31, 2010 |
| 03/09/2010 |
10-K
| Annual Report for the period ended December 31, 2009 |
| 03/04/2009 |
10-K
| Annual Report for the period ended December 31, 2008 |
| 04/29/2008 |
10-K/A
| Annual Report for the period ended December 31, 2007 [amend] |
| 03/17/2008 |
10-K
| Annual Report for the period ended December 31, 2007 |
| 03/30/2007 |
10-K
| Annual Report for the period ended December 31, 2006 |