| Date Filed | Type | Description |
| 03/22/2018 |
10-K
| Annual Report for the period ended December 31, 2017 |
| 12/15/2017 |
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] |
| 04/11/2017 |
10-K/A
| Annual Report for the period ended December 31, 2016 [amend] |
| 03/20/2017 |
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] |
| 03/28/2016 |
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] |
| 03/30/2015 |
10-K
| Annual Report for the period ended December 31, 2014 |
| 04/18/2014 |
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 |
| 04/26/2013 |
10-K/A
| Annual Report for the period ended December 31, 2012 [amend] |
| 04/01/2013 |
10-K
| Annual Report for the period ended December 31, 2012 |
| 01/10/2013 |
10-K/A
| Annual Report for the period ended December 31, 2011 [amend] |
| 03/30/2012 |
10-K
| Annual Report for the period ended December 31, 2011 |
| 04/13/2011 |
10-K
| Annual Report for the period ended December 31, 2010 |
| 03/25/2010 |
10-K
| Annual Report for the period ended December 31, 2009 |
| 03/31/2009 |
10-K
| Annual Report for the period ended December 31, 2008 |
| 04/30/2008 |
10-K/A
| Annual Report for the period ended December 31, 2007 [amend] |
| 03/31/2008 |
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 |
| 03/31/2006 |
10-K
| Annual Report for the period ended December 31, 2005 |
| 03/31/2005 |
10-K
| Annual Report for the period ended December 31, 2004 |