| Date Filed | Type | Description |
| 03/23/2018 |
10-K
| Annual Report for the period ended December 31, 2017 |
| 07/24/2017 |
10-K/A
| Annual Report for the period ended December 31, 2016 [amend] |
| 04/28/2017 |
10-K/A
| Annual Report for the period ended December 31, 2016 [amend] |
| 04/04/2017 |
10-K/A
| Annual Report for the period ended December 31, 2016 [amend] |
| 03/31/2017 |
10-K
| Annual Report for the period ended December 31, 2016 |
| 03/14/2016 |
10-K
| Annual Report for the period ended December 31, 2015 |
| 03/31/2015 |
10-K
| Annual Report for the period ended December 31, 2014 |
| 03/11/2014 |
10-K
| Annual Report for the period ended December 31, 2013 |
| 04/30/2013 |
10-K/A
| Annual Report for the period ended December 31, 2012 [amend] |
| 04/16/2013 |
10-K
| Annual Report for the period ended December 31, 2012 |
| 03/14/2012 |
10-K
| Annual Report for the period ended December 31, 2011 |
| 03/11/2011 |
10-K
| Annual Report for the period ended December 31, 2010 |
| 09/07/2010 |
10-K/A
| Annual Report for the period ended December 31, 2009 [amend] |
| 08/05/2010 |
10-K/A
| Annual Report for the period ended December 31, 2009 [amend] |
| 03/18/2010 |
10-K
| Annual Report for the period ended March 18, 2010 |
| 04/29/2009 |
10-K/A
| Annual Report for the period ended December 31, 2008 [amend] |
| 03/27/2009 |
10-K
| Annual Report for the period ended December 31, 2008 |
| 04/01/2008 |
10-K
| Annual Report for the period ended December 31, 2007 |
| 04/16/2007 |
10-K
| Annual Report for the period ended December 31, 2006 |
| 04/13/2006 |
10-K
| Annual Report for the period ended December 31, 2005 |
| 04/15/2005 |
10-K
| Annual Report for the period ended December 31, 2004 |