| Date Filed | Type | Description |
| 05/06/2016 |
10-K
| Annual Report for the period ended December 31, 2015 |
| 04/02/2015 |
10-K/A
| Annual Report for the period ended December 31, 2014 [amend] |
| 03/12/2015 |
10-K/A
| Annual Report for the period ended December 31, 2014 [amend] |
| 03/02/2015 |
10-K
| Annual Report for the period ended December 31, 2014 |
| 07/17/2014 |
10-K/A
| Annual Report for the period ended December 31, 2013 [amend] |
| 03/28/2014 |
10-K/A
| Annual Report for the period ended December 31, 2013 [amend] |
| 03/18/2014 |
10-K/A
| Annual Report for the period ended December 31, 2013 [amend] |
| 02/25/2014 |
10-K
| Annual Report for the period ended December 31, 2013 |
| 06/14/2013 |
10-K
| Annual Report for the period ended December 31, 2012 |
| 04/30/2012 |
10-K/A
| Annual Report for the period ended December 31, 2011 [amend] |
| 03/27/2012 |
10-K/A
| Annual Report for the period ended December 31, 2011 [amend] |
| 02/29/2012 |
10-K
| Annual Report for the period ended December 31, 2011 |
| 03/15/2011 |
10-K/A
| Annual Report for the period ended December 31, 2010 [amend] |
| 02/18/2011 |
10-K
| Annual Report for the period ended December 31, 2010 |
| 06/04/2010 |
10-K/A
| Annual Report for the period ended December 31, 2009 [amend] |
| 04/30/2010 |
10-K/A
| Annual Report for the period ended December 31, 2009 [amend] |
| 03/31/2010 |
10-K
| Annual Report for the period ended December 31, 2009 |
| 09/11/2009 |
10-K/A
| Annual Report for the period ended December 31, 2008 [amend] |
| 04/29/2009 |
10-K/A
| Annual Report for the period ended December 31, 2008 [amend] |
| 03/31/2009 |
10-K
| Annual Report for the period ended December 31, 2008 |
| 03/31/2008 |
10-K
| Annual Report for the period ended December 31, 2007 |