| Date Filed | Type | Description |
| 05/18/2017 |
10-K
| Annual Report for the period ended December 31, 2016 |
| 11/15/2016 |
10-K
| Annual Report for the period ended December 31, 2015 |
| 04/30/2013 |
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 |
| 04/30/2012 |
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 |
| 02/25/2011 |
10-K
| Annual Report for the period ended December 31, 2010 |
| 03/11/2010 |
10-K
| Annual Report for the period ended December 31, 2009 |
| 03/16/2009 |
10-K
| Annual Report for the period ended December 31, 2008 |
| 03/14/2008 |
10-K/A
| Annual Report for the period ended December 31, 2007 [amend] |
| 03/14/2008 |
10-K
| Annual Report for the period ended December 31, 2007 |
| 03/13/2007 |
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 |
| 03/09/2005 |
10-K/A
| Annual Report for the period ended December 31, 2004 [amend] |
| 03/09/2005 |
10-K
| Annual Report for the period ended December 31, 2004 |
| 03/25/2004 |
10-K
| Annual Report for the period ended December 31, 2003 |
| 04/29/2003 |
10-K/A
| Annual Report for the period ended December 31, 2002 [amend] |
| 03/17/2003 |
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 |
| 06/08/2001 |
10-K/A
| Annual Report for the period ended December 31, 2000 [amend] |
| 05/09/2001 |
10-K/A
| Annual Report for the period ended December 31, 2000 [amend] |
| 05/02/2001 |
10-K/A
| Annual Report for the period ended December 31, 2000 [amend] |
| 04/17/2001 |
10-K/A
| Annual Report for the period ended December 31, 2000 [amend] |
| 04/02/2001 |
10-K
| Annual Report for the period ended December 31, 2000 |
| 02/01/2001 |
10-K/A
| Annual Report for the period ended December 31, 1999 [amend] |
| 04/12/2000 |
10-K
| Annual Report for the period ended December 31, 1999 |
| 03/18/1999 |
10-K
| Annual Report for the period ended December 31, 1998 |
| 05/18/1998 |
10-K/A
| Annual Report for the period ended December 31, 1997 [amend] |
| 03/31/1998 |
10-K
| Annual Report for the period ended December 31, 1997 |
| 03/31/1997 |
10-K
| Annual Report for the period ended December 31, 1996 |