| Date Filed | Type | Description |
| 02/28/2019 |
10-K
| Annual Report for the period ended December 31, 2018 |
| 02/16/2018 |
10-K
| Annual Report for the period ended December 31, 2017 |
| 02/13/2017 |
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] |
| 02/12/2016 |
10-K
| Annual Report for the period ended December 31, 2015 |
| 04/30/2015 |
10-K/A
| Annual Report for the period ended December 31, 2014 [amend] |
| 02/17/2015 |
10-K
| Annual Report for the period ended December 31, 2014 |
| 02/13/2014 |
10-K
| Annual Report for the period ended December 31, 2013 |
| 02/13/2013 |
10-K
| Annual Report for the period ended December 31, 2012 |
| 02/10/2012 |
10-K
| Annual Report for the period ended December 31, 2011 |
| 02/07/2011 |
10-K
| Annual Report for the period ended December 31, 2010 |
| 02/08/2010 |
10-K
| Annual Report for the period ended December 31, 2009 |
| 10/30/2009 |
10-K/A
| Annual Report for the period ended December 31, 2008 [amend] |
| 02/24/2009 |
10-K
| Annual Report for the period ended December 31, 2008 |
| 03/10/2008 |
10-K/A
| Annual Report for the period ended December 31, 2007 [amend] |
| 03/10/2008 |
10-K
| Annual Report for the period ended December 31, 2007 |
| 03/20/2007 |
10-K
| Annual Report for the period ended December 31, 2006 |