| Date Filed | Type | Description |
| 04/30/2015 |
10-K/A
| Annual Report for the period ended December 31, 2014 [amend] |
| 03/31/2015 |
10-K
| Annual Report for the period ended December 31, 2014 |
| 03/18/2014 |
10-K/A
| Annual Report for the period ended December 31, 2013 [amend] |
| 03/17/2014 |
10-K
| Annual Report for the period ended December 31, 2013 |
| 03/22/2013 |
10-K
| Annual Report for the period ended December 31, 2012 |
| 04/16/2012 |
10-K/A
| Annual Report for the period ended December 31, 2011 [amend] |
| 04/16/2012 |
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 |
| 10/25/2010 |
10-K/A
| Annual Report for the period ended December 31, 2009 [amend] |
| 03/15/2010 |
10-K
| Annual Report for the period ended December 31, 2009 |
| 06/16/2009 |
10-K/A
| Annual Report for the period ended December 31, 2008 [amend] |
| 05/29/2009 |
10-K/A
| Annual Report for the period ended December 31, 2008 [amend] |
| 03/09/2009 |
10-K/A
| Annual Report for the period ended December 31, 2008 [amend] |
| 03/02/2009 |
10-K
| Annual Report for the period ended December 31, 2008 |
| 02/27/2008 |
10-K
| Annual Report for the period ended December 31, 2007 |
| 03/01/2007 |
10-K
| Annual Report for the period ended December 31, 2006 |
| 03/01/2006 |
10-K
| Annual Report for the period ended December 31, 2005 |
| 08/08/2005 |
10-K/A
| Annual Report for the period ended December 31, 2004 [amend] |
| 03/16/2005 |
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 |
| 03/26/2003 |
10-K
| Annual Report for the period ended December 31, 2002 |
| 03/25/2002 |
10-K
| Annual Report for the period ended December 31, 2001 |
| 03/27/2001 |
10-K
| Annual Report for the period ended December 31, 2000 |
| 03/24/2000 |
10-K
| Annual Report for the period ended December 31, 1999 |
| 03/31/1999 |
10-K
| Annual Report for the period ended December 31, 1998 |