| Date Filed | Type | Description |
| 04/02/2018 |
10-K
| Annual Report for the period ended December 31, 2017 |
| 05/17/2017 |
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] |
| 03/30/2016 |
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] |
| 04/15/2015 |
10-K
| Annual Report for the period ended December 31, 2014 |
| 10/03/2014 |
10-K/A
| Annual Report for the period ended December 31, 2013 [amend] |
| 04/24/2014 |
10-K/A
| Annual Report for the period ended December 31, 2013 [amend] |
| 04/09/2014 |
10-K
| Annual Report for the period ended December 31, 2013 |
| 03/05/2013 |
10-K
| Annual Report for the period ended December 31, 2012 |
| 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 |
| 11/19/2010 |
10-K/A
| Annual Report for the period ended December 31, 2009 [amend] |
| 03/12/2010 |
10-K
| Annual Report for the period ended December 31, 2009 |
| 03/13/2009 |
10-K
| Annual Report for the period ended December 31, 2008 |
| 03/17/2008 |
10-K
| Annual Report for the period ended December 31, 2007 |
| 04/02/2007 |
10-K
| Annual Report for the period ended December 31, 2006 |
| 03/16/2006 |
10-K
| Annual Report for the period ended December 31, 2005 |