| Date Filed | Type | Description |
| 04/29/2015 |
10-K
| Annual Report for the period ended December 31, 2014 |
| 03/31/2014 |
10-K
| Annual Report for the period ended December 31, 2013 |
| 05/06/2013 |
10-K/A
| Annual Report for the period ended December 31, 2012 [amend] |
| 04/03/2013 |
10-K
| Annual Report for the period ended December 31, 2012 |
| 04/16/2012 |
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 |
| 03/31/2010 |
10-K
| Annual Report for the period ended December 31, 2009 |
| 04/14/2009 |
10-K
| Annual Report for the period ended December 31, 2008 |
| 04/15/2008 |
10-K/A
| Annual Report for the period ended December 31, 2007 [amend] |
| 03/13/2008 |
10-K
| Annual Report for the period ended December 31, 2007 |
| 04/30/2007 |
10-K/A
| Annual Report for the period ended December 31, 2006 [amend] |
| 03/02/2007 |
10-K
| Annual Report for the period ended December 31, 2006 |
| 05/01/2006 |
10-K/A
| Annual Report for the period ended December 31, 2005 [amend] |
| 03/23/2006 |
10-K/A
| Annual Report for the period ended December 31, 2005 [amend] |
| 03/16/2006 |
10-K
| Annual Report for the period ended December 31, 2005 |
| 11/03/2005 |
10-K/A
| Annual Report for the period ended December 31, 2004 [amend] |
| 05/11/2005 |
10-K/A
| Annual Report for the period ended December 31, 2004 [amend] |
| 03/17/2005 |
10-K
| Annual Report for the period ended December 31, 2004 |
| 03/15/2004 |
10-K
| Annual Report for the period ended December 31, 2003 |
| 03/31/2003 |
10-K
| Annual Report for the period ended December 31, 2002 |
| 04/01/2002 |
10-K
| Annual Report for the period ended December 31, 2001 |
| 04/02/2001 |
10-K
| Annual Report for the period ended December 31, 2000 |